Get back apps & update NFC

applications/main/nfc/nfc_i.h

@@ -45,6 +45,7 @@
 ARRAY_DEF(MfClassicUserKeys, char*, M_PTR_OPLIST);
 
 #define NFC_TEXT_STORE_SIZE 128
+#define NFC_APP_FOLDER ANY_PATH("nfc")
 
 typedef enum {
     NfcRpcStateIdle,

applications/main/nfc/scenes/nfc_scene_delete.c

@@ -52,6 +52,7 @@ void nfc_scene_delete_on_enter(void* context) {
 
 bool nfc_scene_delete_on_event(void* context, SceneManagerEvent event) {
     Nfc* nfc = context;
+    furi_string_printf(nfc->dev->folder, "%s", NFC_APP_FOLDER);
     bool consumed = false;
 
     if(event.type == SceneManagerEventTypeCustom) {

applications/main/nfc/scenes/nfc_scene_file_select.c

@@ -3,6 +3,7 @@
 
 void nfc_scene_file_select_on_enter(void* context) {
     Nfc* nfc = context;
+    furi_string_printf(nfc->dev->folder, "%s", NFC_APP_FOLDER);
     // Process file_select return
     nfc_device_set_loading_callback(nfc->dev, nfc_show_loading_popup, nfc);
     if(!furi_string_size(nfc->dev->load_path)) {

applications/main/nfc/scenes/nfc_scene_restore_original_confirm.c

@@ -24,6 +24,7 @@ void nfc_scene_restore_original_confirm_on_enter(void* context) {
 
 bool nfc_scene_restore_original_confirm_on_event(void* context, SceneManagerEvent event) {
     Nfc* nfc = context;
+    furi_string_printf(nfc->dev->folder, "%s", NFC_APP_FOLDER);
     bool consumed = false;
 
     if(event.type == SceneManagerEventTypeCustom) {

applications/main/nfc/scenes/nfc_scene_save_name.c

@@ -51,6 +51,7 @@ void nfc_scene_save_name_on_enter(void* context) {
 
 bool nfc_scene_save_name_on_event(void* context, SceneManagerEvent event) {
     Nfc* nfc = context;
+    furi_string_printf(nfc->dev->folder, "%s", NFC_APP_FOLDER);
     bool consumed = false;
 
     if(event.type == SceneManagerEventTypeCustom) {

applications/plugins/am2320_temp_sensor/application.fam

@@ -0,0 +1,14 @@
+App(
+    appid="AM2320_temp_sensor",
+    name="[AM2320] Temp. Sensor",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="am_temperature_sensor_app",
+    cdefines=["APP_AM_TEMPERATURE_SENSOR"],
+    requires=[
+        "gui",
+    ],
+    stack_size=2 * 1024,
+    order=90,
+	fap_icon="temperature_sensor.png",
+    fap_category="GPIO",
+)

applications/plugins/am2320_temp_sensor/temperature_sensor.c

@@ -0,0 +1,336 @@
+/* Flipper Plugin to read the values from a AM2320/AM2321 Sensor */
+/* Created by @xMasterX, original app (was used as template) by Mywk - https://github.com/Mywk */
+/* Lib used as reference: https://github.com/Gozem/am2320/blob/master/am2321.c*/
+#include <furi.h>
+#include <furi_hal.h>
+#include <furi_hal_i2c.h>
+#include <math.h>
+
+#include <gui/gui.h>
+#include <input/input.h>
+
+#include <notification/notification_messages.h>
+
+#include <string.h>
+
+#define TS_DEFAULT_VALUE 0xFFFF
+
+#define AM2320_ADDRESS (0x5C << 1)
+
+#define DATA_BUFFER_SIZE 8
+
+// External I2C BUS
+#define I2C_BUS &furi_hal_i2c_handle_external
+
+typedef enum {
+    TSSInitializing,
+    TSSNoSensor,
+    TSSPendingUpdate,
+} TSStatus;
+
+typedef enum {
+    TSEventTypeTick,
+    TSEventTypeInput,
+} TSEventType;
+
+typedef struct {
+    TSEventType type;
+    InputEvent input;
+} TSEvent;
+
+extern const NotificationSequence sequence_blink_red_100;
+extern const NotificationSequence sequence_blink_blue_100;
+
+static TSStatus temperature_sensor_current_status = TSSInitializing;
+
+// Temperature and Humidity data buffers, ready to print
+char ts_data_buffer_temperature_c[DATA_BUFFER_SIZE];
+char ts_data_buffer_temperature_f[DATA_BUFFER_SIZE];
+char ts_data_buffer_relative_humidity[DATA_BUFFER_SIZE];
+char ts_data_buffer_absolute_humidity[DATA_BUFFER_SIZE];
+
+// CRC16 calculation
+static uint16_t get_crc16(const uint8_t* buf, size_t len) {
+    uint16_t crc = 0xFFFF;
+
+    while(len--) {
+        crc ^= (uint16_t)*buf++;
+        for(unsigned i = 0; i < 8; i++) {
+            if(crc & 0x0001) {
+                crc >>= 1;
+                crc ^= 0xA001;
+            } else {
+                crc >>= 1;
+            }
+        }
+    }
+
+    return crc;
+}
+// Combine bytes
+static uint16_t combine_bytes(uint8_t msb, uint8_t lsb) {
+    return ((uint16_t)msb << 8) | (uint16_t)lsb;
+}
+
+// Executes an I2C wake up, sends command and reads result
+// true if fetch was successful, false otherwise
+static bool temperature_sensor_get_data(uint8_t* buffer, uint8_t size) {
+    uint32_t timeout = furi_ms_to_ticks(100);
+    uint8_t cmdbuffer[3] = {0, 0, 0};
+    bool ret = false;
+
+    // Aquire I2C bus
+    furi_hal_i2c_acquire(I2C_BUS);
+
+    // Wake UP AM2320 (sensor goes to sleep to not warm up and affect the humidity sensor)
+    furi_hal_i2c_is_device_ready(I2C_BUS, (uint8_t)AM2320_ADDRESS, timeout);
+    // Check if device woken up then we do next stuff
+    if(furi_hal_i2c_is_device_ready(I2C_BUS, (uint8_t)AM2320_ADDRESS, timeout)) {
+        // Wait a bit
+        furi_delay_us(1000);
+
+        // Prepare command: Addr 0x03, start register = 0x00, number of registers to read = 0x04
+        cmdbuffer[0] = 0x03;
+        cmdbuffer[1] = 0x00;
+        cmdbuffer[2] = 0x04;
+
+        // Transmit command to read registers
+        ret = furi_hal_i2c_tx(I2C_BUS, (uint8_t)AM2320_ADDRESS, cmdbuffer, 3, timeout);
+
+        // Wait a bit
+        furi_delay_us(1600);
+        if(ret) {
+            /*
+             * Read out 8 bytes of data
+             * Byte 0: Should be Modbus function code 0x03
+             * Byte 1: Should be number of registers to read (0x04)
+             * Byte 2: Humidity msb
+             * Byte 3: Humidity lsb
+             * Byte 4: Temperature msb
+             * Byte 5: Temperature lsb
+             * Byte 6: CRC lsb byte
+             * Byte 7: CRC msb byte
+             */
+            ret = furi_hal_i2c_rx(I2C_BUS, (uint8_t)AM2320_ADDRESS, buffer, size, timeout);
+        }
+    }
+    // Release i2c bus
+    furi_hal_i2c_release(I2C_BUS);
+
+    return ret;
+}
+
+// Fetches temperature and humidity from sensor
+// Temperature and humidity must be preallocated
+// true if fetch was successful, false otherwise
+static bool temperature_sensor_fetch_info(double* temperature, double* humidity) {
+    *humidity = (float)0;
+    bool ret = false;
+
+    uint8_t buffer[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+
+    // Fetch data from sensor
+    ret = temperature_sensor_get_data(buffer, 8);
+
+    // If we got no result
+    if(!ret) return false;
+
+    if(buffer[0] != 0x03) return false; // must be 0x03 modbus reply
+    if(buffer[1] != 0x04) return false; // must be 0x04 number of registers reply
+
+    // Check CRC16 sum, if not correct - return false
+    uint16_t crcdata = get_crc16(buffer, 6);
+    uint16_t crcread = combine_bytes(buffer[7], buffer[6]);
+    if(crcdata != crcread) return false;
+
+    // Combine bytes for temp and humidity
+    uint16_t temp16 = combine_bytes(buffer[4], buffer[5]);
+    uint16_t humi16 = combine_bytes(buffer[2], buffer[3]);
+
+    /* Temperature resolution is 16Bit, 
+   * temperature highest bit (Bit15) is equal to 1 indicates a
+   * negative temperature, the temperature highest bit (Bit15)
+   * is equal to 0 indicates a positive temperature; 
+   * temperature in addition to the most significant bit (Bit14 ~ Bit0)
+   *  indicates the temperature sensor string value.
+   * Temperature sensor value is a string of 10 times the
+   * actual temperature value.
+   */
+    if(temp16 & 0x8000) {
+        temp16 = -(temp16 & 0x7FFF);
+    }
+
+    // Prepare output data
+    *temperature = (float)temp16 / 10.0;
+    *humidity = (float)humi16 / 10.0;
+
+    return true;
+}
+
+// Draw callback
+
+static void temperature_sensor_draw_callback(Canvas* canvas, void* ctx) {
+    UNUSED(ctx);
+
+    canvas_clear(canvas);
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str(canvas, 2, 10, "AM2320/AM2321 Sensor");
+
+    canvas_set_font(canvas, FontSecondary);
+    canvas_draw_str(canvas, 2, 62, "Press back to exit.");
+
+    switch(temperature_sensor_current_status) {
+    case TSSInitializing:
+        canvas_draw_str(canvas, 2, 30, "Initializing..");
+        break;
+    case TSSNoSensor:
+        canvas_draw_str(canvas, 2, 30, "No sensor found!");
+        break;
+    case TSSPendingUpdate: {
+        canvas_draw_str(canvas, 3, 24, "Temperature");
+        canvas_draw_str(canvas, 68, 24, "Humidity");
+
+        // Draw vertical lines
+        canvas_draw_line(canvas, 61, 16, 61, 50);
+        canvas_draw_line(canvas, 62, 16, 62, 50);
+
+        // Draw horizontal line
+        canvas_draw_line(canvas, 2, 27, 122, 27);
+
+        // Draw temperature and humidity values
+        canvas_draw_str(canvas, 8, 38, ts_data_buffer_temperature_c);
+        canvas_draw_str(canvas, 42, 38, "C");
+        canvas_draw_str(canvas, 8, 48, ts_data_buffer_temperature_f);
+        canvas_draw_str(canvas, 42, 48, "F");
+        canvas_draw_str(canvas, 68, 38, ts_data_buffer_relative_humidity);
+        canvas_draw_str(canvas, 100, 38, "%");
+        canvas_draw_str(canvas, 68, 48, ts_data_buffer_absolute_humidity);
+        canvas_draw_str(canvas, 100, 48, "g/m3");
+
+    } break;
+    default:
+        break;
+    }
+}
+
+// Input callback
+
+static void temperature_sensor_input_callback(InputEvent* input_event, void* ctx) {
+    furi_assert(ctx);
+    FuriMessageQueue* event_queue = ctx;
+
+    TSEvent event = {.type = TSEventTypeInput, .input = *input_event};
+    furi_message_queue_put(event_queue, &event, FuriWaitForever);
+}
+
+// Timer callback
+
+static void temperature_sensor_timer_callback(FuriMessageQueue* event_queue) {
+    furi_assert(event_queue);
+
+    TSEvent event = {.type = TSEventTypeTick};
+    furi_message_queue_put(event_queue, &event, 0);
+}
+
+// App entry point
+
+int32_t am_temperature_sensor_app(void* p) {
+    UNUSED(p);
+
+    furi_hal_power_suppress_charge_enter();
+    // Declare our variables and assign variables a default value
+    TSEvent tsEvent;
+    bool sensorFound = false;
+    double celsius, fahrenheit, rel_humidity, abs_humidity = TS_DEFAULT_VALUE;
+
+    // Used for absolute humidity calculation
+    double vapour_pressure = 0;
+
+    FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(TSEvent));
+
+    // Register callbacks
+    ViewPort* view_port = view_port_alloc();
+    view_port_draw_callback_set(view_port, temperature_sensor_draw_callback, NULL);
+    view_port_input_callback_set(view_port, temperature_sensor_input_callback, event_queue);
+
+    // Create timer and register its callback
+    FuriTimer* timer =
+        furi_timer_alloc(temperature_sensor_timer_callback, FuriTimerTypePeriodic, event_queue);
+    furi_timer_start(timer, furi_kernel_get_tick_frequency());
+
+    // Register viewport
+    Gui* gui = furi_record_open(RECORD_GUI);
+    gui_add_view_port(gui, view_port, GuiLayerFullscreen);
+
+    // Used to notify the user by blinking red (error) or blue (fetch successful)
+    NotificationApp* notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    while(1) {
+        furi_check(furi_message_queue_get(event_queue, &tsEvent, FuriWaitForever) == FuriStatusOk);
+
+        // Handle events
+        if(tsEvent.type == TSEventTypeInput) {
+            // Exit on back key
+            if(tsEvent.input.key ==
+               InputKeyBack) // We dont check for type here, we can check the type of keypress like: (event.input.type == InputTypeShort)
+                break;
+
+        } else if(tsEvent.type == TSEventTypeTick) {
+            // Update sensor data
+            // Fetch data and set the sensor current status accordingly
+            sensorFound = temperature_sensor_fetch_info(&celsius, &rel_humidity);
+            temperature_sensor_current_status = (sensorFound ? TSSPendingUpdate : TSSNoSensor);
+
+            if(sensorFound) {
+                // Blink blue
+                notification_message(notifications, &sequence_blink_blue_100);
+
+                if(celsius != TS_DEFAULT_VALUE && rel_humidity != TS_DEFAULT_VALUE) {
+                    // Convert celsius to fahrenheit
+                    fahrenheit = (celsius * 9 / 5) + 32;
+
+                    // Calculate absolute humidity - For more info refer to https://github.com/Mywk/FlipperTemperatureSensor/issues/1
+                    // Calculate saturation vapour pressure first
+                    vapour_pressure =
+                        (double)6.11 *
+                        pow(10, (double)(((double)7.5 * celsius) / ((double)237.3 + celsius)));
+                    // Then the vapour pressure in Pa
+                    vapour_pressure = vapour_pressure * rel_humidity;
+                    // Calculate absolute humidity
+                    abs_humidity =
+                        (double)2.16679 * (double)(vapour_pressure / ((double)273.15 + celsius));
+
+                    // Fill our buffers here, not on the canvas draw callback
+                    snprintf(ts_data_buffer_temperature_c, DATA_BUFFER_SIZE, "%.2f", celsius);
+                    snprintf(ts_data_buffer_temperature_f, DATA_BUFFER_SIZE, "%.2f", fahrenheit);
+                    snprintf(
+                        ts_data_buffer_relative_humidity, DATA_BUFFER_SIZE, "%.2f", rel_humidity);
+                    snprintf(
+                        ts_data_buffer_absolute_humidity, DATA_BUFFER_SIZE, "%.2f", abs_humidity);
+                }
+
+            } else {
+                // Reset our variables to their default values
+                celsius = fahrenheit = rel_humidity = abs_humidity = TS_DEFAULT_VALUE;
+
+                // Blink red
+                notification_message(notifications, &sequence_blink_red_100);
+            }
+        }
+
+        uint32_t wait_ticks = furi_ms_to_ticks(!sensorFound ? 100 : 500);
+        furi_delay_tick(wait_ticks);
+    }
+
+    furi_hal_power_suppress_charge_exit();
+    // Dobby is freee (free our variables, Flipper will crash if we don't do this!)
+    furi_timer_free(timer);
+    gui_remove_view_port(gui, view_port);
+    view_port_free(view_port);
+    furi_message_queue_free(event_queue);
+
+    furi_record_close(RECORD_NOTIFICATION);
+    furi_record_close(RECORD_GUI);
+
+    return 0;
+}

applications/plugins/bpmtapper/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
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applications/plugins/bpmtapper/README.md

@@ -0,0 +1,14 @@
+# BPM Tapper
+
+A BPM Tapper for the Flipper Zero.
+
+![screenshot](img/screenshot.png)
+
+Hit any button other than back repeatedly. Calculates based on the average of the last 8 inputs.
+
+## Compiling
+
+```
+./fbt firmware_bpm_tapper
+```
+

applications/plugins/bpmtapper/application.fam

@@ -0,0 +1,13 @@
+App(
+    appid="BPM_Tapper",
+    name="BPM Tapper",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="bpm_tapper_app",
+    cdefines=["APP_BPM_TAPPER"],
+    requires=["gui"],
+    stack_size=2 * 1024,
+    fap_icon="bpm_10px.png",
+    fap_category="Music",
+    fap_icon_assets="icons",
+    order=15,
+)

applications/plugins/bpmtapper/bpm.c

@@ -0,0 +1,262 @@
+#include <furi.h>
+#include <furi_hal.h>
+#include <dialogs/dialogs.h>
+#include <gui/gui.h>
+#include <input/input.h>
+#include <stdlib.h>
+#include "BPM_Tapper_icons.h"
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+typedef struct {
+    EventType type;
+    InputEvent input;
+} PluginEvent;
+
+//QUEUE
+
+struct node {
+    int interval;
+    struct node* next;
+};
+typedef struct node node;
+
+typedef struct {
+    int size;
+    int max_size;
+    node* front;
+    node* rear;
+} queue;
+
+static void init_queue(queue* q) {
+    q->size = 0;
+    q->max_size = 8;
+    q->front = NULL;
+    q->rear = NULL;
+}
+
+static void queue_remove(queue* q) {
+    node* tmp;
+    tmp = q->front;
+    q->front = q->front->next;
+    q->size--;
+    free(tmp);
+}
+
+static void queue_add(queue* q, int value) {
+    node* tmp = malloc(sizeof(node));
+    tmp->interval = value;
+    tmp->next = NULL;
+    if(q->size == q->max_size) {
+        queue_remove(q);
+    }
+    // check if empty
+    if(q->rear == NULL) {
+        q->front = tmp;
+        q->rear = tmp;
+    } else {
+        q->rear->next = tmp;
+        q->rear = tmp;
+    }
+    q->size++;
+}
+
+static float queue_avg(queue* q) {
+    float avg = 0.0;
+    if(q->size == 0) {
+        return avg;
+    } else {
+        node* tmp;
+        float sum = 0.0;
+        tmp = q->front;
+        while(tmp != NULL) {
+            sum = sum + tmp->interval;
+            tmp = tmp->next;
+        }
+        avg = sum / q->size;
+        FURI_LOG_D("BPM-Tapper", "Sum: %.2f Avg: %.2f", (double)sum, (double)avg);
+        return avg;
+    }
+}
+
+// TOO SLOW!
+//uint64_t dolphin_state_timestamp() {
+//    FuriHalRtcDateTime datetime;
+//    furi_hal_rtc_get_datetime(&datetime);
+//    return furi_hal_rtc_datetime_to_timestamp(&datetime);
+//}
+//
+typedef struct {
+    int taps;
+    double bpm;
+    uint32_t last_stamp;
+    uint32_t interval;
+    queue* tap_queue;
+} BPMTapper;
+
+static void show_hello() {
+    // BEGIN HELLO DIALOG
+    DialogsApp* dialogs = furi_record_open(RECORD_DIALOGS);
+    DialogMessage* message = dialog_message_alloc();
+
+    const char* header_text = "BPM Tapper";
+    const char* message_text = "Tap center to start";
+
+    dialog_message_set_header(message, header_text, 63, 3, AlignCenter, AlignTop);
+    dialog_message_set_text(message, message_text, 0, 17, AlignLeft, AlignTop);
+    dialog_message_set_buttons(message, NULL, "Tap", NULL);
+
+    dialog_message_set_icon(message, &I_DolphinCommon_56x48, 72, 17);
+
+    dialog_message_show(dialogs, message);
+
+    dialog_message_free(message);
+    furi_record_close(RECORD_DIALOGS);
+    // END HELLO DIALOG
+}
+
+static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
+    furi_assert(event_queue);
+
+    PluginEvent event = {.type = EventTypeKey, .input = *input_event};
+    furi_message_queue_put(event_queue, &event, FuriWaitForever);
+}
+
+static void render_callback(Canvas* const canvas, void* ctx) {
+    FuriString* tempStr;
+
+    const BPMTapper* bpm_state = acquire_mutex((ValueMutex*)ctx, 25);
+    if(bpm_state == NULL) {
+        return;
+    }
+    // border
+    //canvas_draw_frame(canvas, 0, 0, 128, 64);
+    canvas_set_font(canvas, FontPrimary);
+
+    tempStr = furi_string_alloc();
+
+    furi_string_printf(tempStr, "Taps: %d", bpm_state->taps);
+    canvas_draw_str_aligned(canvas, 5, 10, AlignLeft, AlignBottom, furi_string_get_cstr(tempStr));
+    furi_string_reset(tempStr);
+
+    furi_string_printf(tempStr, "Queue: %d", bpm_state->tap_queue->size);
+    canvas_draw_str_aligned(canvas, 70, 10, AlignLeft, AlignBottom, furi_string_get_cstr(tempStr));
+    furi_string_reset(tempStr);
+
+    furi_string_printf(tempStr, "Interval: %ldms", bpm_state->interval);
+    canvas_draw_str_aligned(canvas, 5, 20, AlignLeft, AlignBottom, furi_string_get_cstr(tempStr));
+    furi_string_reset(tempStr);
+
+    furi_string_printf(tempStr, "x2 %.2f /2 %.2f", bpm_state->bpm * 2, bpm_state->bpm / 2);
+    canvas_draw_str_aligned(
+        canvas, 64, 60, AlignCenter, AlignCenter, furi_string_get_cstr(tempStr));
+    furi_string_reset(tempStr);
+
+    furi_string_printf(tempStr, "%.2f", bpm_state->bpm);
+    canvas_set_font(canvas, FontBigNumbers);
+    canvas_draw_str_aligned(
+        canvas, 64, 40, AlignCenter, AlignCenter, furi_string_get_cstr(tempStr));
+    furi_string_reset(tempStr);
+
+    furi_string_free(tempStr);
+
+    release_mutex((ValueMutex*)ctx, bpm_state);
+}
+
+static void bpm_state_init(BPMTapper* const plugin_state) {
+    plugin_state->taps = 0;
+    plugin_state->bpm = 120.0;
+    plugin_state->last_stamp = 0; // furi_get_tick();
+    plugin_state->interval = 0;
+    queue* q;
+    q = malloc(sizeof(queue));
+    init_queue(q);
+    plugin_state->tap_queue = q;
+}
+
+int32_t bpm_tapper_app(void* p) {
+    UNUSED(p);
+
+    FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
+
+    BPMTapper* bpm_state = malloc(sizeof(BPMTapper));
+    // setup
+    bpm_state_init(bpm_state);
+
+    ValueMutex state_mutex;
+    if(!init_mutex(&state_mutex, bpm_state, sizeof(bpm_state))) {
+        FURI_LOG_E("BPM-Tapper", "cannot create mutex\r\n");
+        free(bpm_state);
+        return 255;
+    }
+    show_hello();
+
+    // BEGIN IMPLEMENTATION
+
+    // Set system callbacks
+    ViewPort* view_port = view_port_alloc();
+    view_port_draw_callback_set(view_port, render_callback, &state_mutex);
+    view_port_input_callback_set(view_port, input_callback, event_queue);
+
+    // Open GUI and register view_port
+    Gui* gui = furi_record_open("gui");
+    gui_add_view_port(gui, view_port, GuiLayerFullscreen);
+
+    PluginEvent event;
+    for(bool processing = true; processing;) {
+        FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
+        BPMTapper* bpm_state = (BPMTapper*)acquire_mutex_block(&state_mutex);
+        if(event_status == FuriStatusOk) {
+            // press events
+            if(event.type == EventTypeKey) {
+                if(event.input.type == InputTypePress) {
+                    switch(event.input.key) {
+                    case InputKeyUp:
+                    case InputKeyDown:
+                    case InputKeyRight:
+                    case InputKeyLeft:
+                    case InputKeyOk:
+                        bpm_state->taps++;
+                        uint32_t new_stamp = furi_get_tick();
+                        if(bpm_state->last_stamp == 0) {
+                            bpm_state->last_stamp = new_stamp;
+                            break;
+                        }
+                        bpm_state->interval = new_stamp - bpm_state->last_stamp;
+                        bpm_state->last_stamp = new_stamp;
+                        queue_add(bpm_state->tap_queue, bpm_state->interval);
+                        float avg = queue_avg(bpm_state->tap_queue);
+                        float bps = 1.0 / (avg / 1000.0);
+                        bpm_state->bpm = bps * 60.0;
+                        break;
+                    case InputKeyBack:
+                        // Exit the plugin
+                        processing = false;
+                        break;
+                    default:
+                        break;
+                    }
+                }
+            }
+        } else {
+            FURI_LOG_D("BPM-Tapper", "FuriMessageQueue: event timeout");
+            // event timeout
+        }
+        view_port_update(view_port);
+        release_mutex(&state_mutex, bpm_state);
+    }
+    view_port_enabled_set(view_port, false);
+    gui_remove_view_port(gui, view_port);
+    furi_record_close("gui");
+    view_port_free(view_port);
+    furi_message_queue_free(event_queue);
+    delete_mutex(&state_mutex);
+    queue* q = bpm_state->tap_queue;
+    free(q);
+    free(bpm_state);
+
+    return 0;
+}

applications/plugins/dht_temp_sensor/DHT.c

@@ -0,0 +1,169 @@
+#include "DHT.h"
+
+#define lineDown() furi_hal_gpio_write(sensor->GPIO, false)
+#define lineUp() furi_hal_gpio_write(sensor->GPIO, true)
+#define getLine() furi_hal_gpio_read(sensor->GPIO)
+#define Delay(d) furi_delay_ms(d)
+
+DHT_data DHT_getData(DHT_sensor* sensor) {
+    DHT_data data = {-128.0f, -128.0f};
+
+#if DHT_POLLING_CONTROL == 1
+    /* Ограничение по частоте опроса датчика */
+    //Определение интервала опроса в зависимости от датчика
+    uint16_t pollingInterval;
+    if(sensor->type == DHT11) {
+        pollingInterval = DHT_POLLING_INTERVAL_DHT11;
+    } else {
+        pollingInterval = DHT_POLLING_INTERVAL_DHT22;
+    }
+
+    //Если интервал маленький, то возврат последнего удачного значения
+    if((furi_get_tick() - sensor->lastPollingTime < pollingInterval) &&
+       sensor->lastPollingTime != 0) {
+        data.hum = sensor->lastHum;
+        data.temp = sensor->lastTemp;
+        return data;
+    }
+    sensor->lastPollingTime = furi_get_tick() + 1;
+#endif
+
+    //Опускание линии данных на 18 мс
+    lineDown();
+#ifdef DHT_IRQ_CONTROL
+    //Выключение прерываний, чтобы ничто не мешало обработке данных
+    __disable_irq();
+#endif
+    Delay(18);
+
+    //Подъём линии
+    lineUp();
+
+    /* Ожидание ответа от датчика */
+    uint16_t timeout = 0;
+    while(!getLine()) {
+        timeout++;
+        if(timeout > DHT_TIMEOUT) {
+#ifdef DHT_IRQ_CONTROL
+            __enable_irq();
+#endif
+            //Если датчик не отозвался, значит его точно нет
+            //Обнуление последнего удачного значения, чтобы
+            //не получать фантомные значения
+            sensor->lastHum = -128.0f;
+            sensor->lastTemp = -128.0f;
+
+            return data;
+        }
+    }
+    //Ожидание спада
+    while(getLine()) {
+        timeout++;
+        if(timeout > DHT_TIMEOUT) {
+#ifdef DHT_IRQ_CONTROL
+            __enable_irq();
+#endif
+            //Если датчик не отозвался, значит его точно нет
+            //Обнуление последнего удачного значения, чтобы
+            //не получать фантомные значения
+            sensor->lastHum = -128.0f;
+            sensor->lastTemp = -128.0f;
+
+            return data;
+        }
+    }
+    timeout = 0;
+    //Ожидание подъёма
+    while(!getLine()) {
+        timeout++;
+        if(timeout > DHT_TIMEOUT) {
+            if(timeout > DHT_TIMEOUT) {
+#ifdef DHT_IRQ_CONTROL
+                __enable_irq();
+#endif
+                //Если датчик не отозвался, значит его точно нет
+                //Обнуление последнего удачного значения, чтобы
+                //не получать фантомные значения
+                sensor->lastHum = -128.0f;
+                sensor->lastTemp = -128.0f;
+
+                return data;
+            }
+        }
+    }
+    timeout = 0;
+    //Ожидание спада
+    while(getLine()) {
+        timeout++;
+        if(timeout > DHT_TIMEOUT) {
+#ifdef DHT_IRQ_CONTROL
+            __enable_irq();
+#endif
+            //Если датчик не отозвался, значит его точно нет
+            //Обнуление последнего удачного значения, чтобы
+            //не получать фантомные значения
+            sensor->lastHum = -128.0f;
+            sensor->lastTemp = -128.0f;
+            return data;
+        }
+    }
+
+    /* Чтение ответа от датчика */
+    uint8_t rawData[5] = {0, 0, 0, 0, 0};
+    for(uint8_t a = 0; a < 5; a++) {
+        for(uint8_t b = 7; b != 255; b--) {
+            uint16_t hT = 0, lT = 0;
+            //Пока линия в низком уровне, инкремент переменной lT
+            while(!getLine() && lT != 65535) lT++;
+            //Пока линия в высоком уровне, инкремент переменной hT
+            timeout = 0;
+            while(getLine() && hT != 65535) hT++;
+            //Если hT больше lT, то пришла единица
+            if(hT > lT) rawData[a] |= (1 << b);
+        }
+    }
+#ifdef DHT_IRQ_CONTROL
+    //Включение прерываний после приёма данных
+    __enable_irq();
+#endif
+    /* Проверка целостности данных */
+    if((uint8_t)(rawData[0] + rawData[1] + rawData[2] + rawData[3]) == rawData[4]) {
+        //Если контрольная сумма совпадает, то конвертация и возврат полученных значений
+        if(sensor->type == DHT22) {
+            data.hum = (float)(((uint16_t)rawData[0] << 8) | rawData[1]) * 0.1f;
+            //Проверка на отрицательность температуры
+            if(!(rawData[2] & (1 << 7))) {
+                data.temp = (float)(((uint16_t)rawData[2] << 8) | rawData[3]) * 0.1f;
+            } else {
+                rawData[2] &= ~(1 << 7);
+                data.temp = (float)(((uint16_t)rawData[2] << 8) | rawData[3]) * -0.1f;
+            }
+        }
+        if(sensor->type == DHT11) {
+            data.hum = (float)rawData[0];
+            data.temp = (float)rawData[2];
+            //DHT11 производства ASAIR имеют дробную часть в температуре
+            //А ещё температуру измеряет от -20 до +60 *С
+            //Вот прикол, да?
+            if(rawData[3] != 0) {
+                //Проверка знака
+                if(!(rawData[3] & (1 << 7))) {
+                    //Добавление положительной дробной части
+                    data.temp += rawData[3] * 0.1f;
+                } else {
+                    //А тут делаем отрицательное значение
+                    rawData[3] &= ~(1 << 7);
+                    data.temp += rawData[3] * 0.1f;
+                    data.temp *= -1;
+                }
+            }
+        }
+    }
+
+#if DHT_POLLING_CONTROL == 1
+    sensor->lastHum = data.hum;
+    sensor->lastTemp = data.temp;
+#endif
+
+    return data;
+}

applications/plugins/dht_temp_sensor/DHT.h

@@ -0,0 +1,40 @@
+#ifndef DHT_H_
+#define DHT_H_
+
+#include <furi_hal_resources.h>
+
+/* Настройки */
+#define DHT_TIMEOUT 65534 //Количество итераций, после которых функция вернёт пустые значения
+#define DHT_POLLING_CONTROL 1 //Включение проверки частоты опроса датчика
+#define DHT_POLLING_INTERVAL_DHT11 \
+    2000 //Интервал опроса DHT11 (0.5 Гц по даташиту). Можно поставить 1500, будет работать
+//Костыль, временно 2 секунды для датчика AM2302
+#define DHT_POLLING_INTERVAL_DHT22 2000 //Интервал опроса DHT22 (1 Гц по даташиту)
+#define DHT_IRQ_CONTROL //Выключать прерывания во время обмена данных с датчиком
+/* Структура возвращаемых датчиком данных */
+typedef struct {
+    float hum;
+    float temp;
+} DHT_data;
+
+/* Тип используемого датчика */
+typedef enum { DHT11, DHT22 } DHT_type;
+
+/* Структура объекта датчика */
+typedef struct {
+    char name[11];
+    const GpioPin* GPIO; //Пин датчика
+    DHT_type type; //Тип датчика (DHT11 или DHT22)
+
+//Контроль частоты опроса датчика. Значения не заполнять!
+#if DHT_POLLING_CONTROL == 1
+    uint32_t lastPollingTime; //Время последнего опроса датчика
+    float lastTemp; //Последнее значение температуры
+    float lastHum; //Последнее значение влажности
+#endif
+} DHT_sensor;
+
+/* Прототипы функций */
+DHT_data DHT_getData(DHT_sensor* sensor); //Получить данные с датчика
+
+#endif

applications/plugins/dht_temp_sensor/application.fam

@@ -0,0 +1,13 @@
+App(
+    appid="DHT_Monitor",
+    name="[DHT] Temp. Monitor",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="quenon_dht_mon_app",
+    cdefines=["QUENON_DHT_MON"],
+    requires=[
+        "gui",
+    ],
+    fap_category="GPIO",
+    fap_icon="icon.png",
+    stack_size=2 * 1024,
+)

applications/plugins/dht_temp_sensor/quenon_dht_mon.c

@@ -0,0 +1,469 @@
+#include "quenon_dht_mon.h"
+#include <m-string.h>
+
+//Порты ввода/вывода, которые не были обозначены в общем списке
+const GpioPin SWC_10 = {.pin = LL_GPIO_PIN_14, .port = GPIOA};
+const GpioPin SIO_12 = {.pin = LL_GPIO_PIN_13, .port = GPIOA};
+const GpioPin TX_13 = {.pin = LL_GPIO_PIN_6, .port = GPIOB};
+const GpioPin RX_14 = {.pin = LL_GPIO_PIN_7, .port = GPIOB};
+
+//Количество доступных портов ввода/вывода
+#define GPIO_ITEMS (sizeof(gpio_item) / sizeof(GpioItem))
+
+//Перечень достуных портов ввода/вывода
+static const GpioItem gpio_item[] = {
+    {2, "2 (A7)", &gpio_ext_pa7},
+    {3, "3 (A6)", &gpio_ext_pa6},
+    {4, "4 (A4)", &gpio_ext_pa4},
+    {5, "5 (B3)", &gpio_ext_pb3},
+    {6, "6 (B2)", &gpio_ext_pb2},
+    {7, "7 (C3)", &gpio_ext_pc3},
+    {10, " 10(SWC) ", &SWC_10},
+    {12, "12 (SIO)", &SIO_12},
+    {13, "13 (TX)", &TX_13},
+    {14, "14 (RX)", &RX_14},
+    {15, "15 (C1)", &gpio_ext_pc1},
+    {16, "16 (C0)", &gpio_ext_pc0},
+    {17, "17 (1W)", &ibutton_gpio}};
+
+//Данные плагина
+static PluginData* app;
+
+uint8_t DHTMon_GPIO_to_int(const GpioPin* gpio) {
+    if(gpio == NULL) return 255;
+    for(uint8_t i = 0; i < GPIO_ITEMS; i++) {
+        if(gpio_item[i].pin->pin == gpio->pin && gpio_item[i].pin->port == gpio->port) {
+            return gpio_item[i].num;
+        }
+    }
+    return 255;
+}
+
+const GpioPin* DHTMon_GPIO_form_int(uint8_t name) {
+    for(uint8_t i = 0; i < GPIO_ITEMS; i++) {
+        if(gpio_item[i].num == name) {
+            return gpio_item[i].pin;
+        }
+    }
+    return NULL;
+}
+
+const GpioPin* DHTMon_GPIO_from_index(uint8_t index) {
+    if(index > GPIO_ITEMS) return NULL;
+    return gpio_item[index].pin;
+}
+
+uint8_t DHTMon_GPIO_to_index(const GpioPin* gpio) {
+    if(gpio == NULL) return 255;
+    for(uint8_t i = 0; i < GPIO_ITEMS; i++) {
+        if(gpio_item[i].pin->pin == gpio->pin && gpio_item[i].pin->port == gpio->port) {
+            return i;
+        }
+    }
+    return 255;
+}
+
+const char* DHTMon_GPIO_getName(const GpioPin* gpio) {
+    if(gpio == NULL) return NULL;
+    for(uint8_t i = 0; i < GPIO_ITEMS; i++) {
+        if(gpio_item[i].pin->pin == gpio->pin && gpio_item[i].pin->port == gpio->port) {
+            return gpio_item[i].name;
+        }
+    }
+    return NULL;
+}
+
+void DHTMon_sensors_init(void) {
+    //Включение 5V если на порту 1 FZ его нет
+    if(furi_hal_power_is_otg_enabled() != true) {
+        furi_hal_power_enable_otg();
+    }
+
+    //Настройка GPIO загруженных датчиков
+    for(uint8_t i = 0; i < app->sensors_count; i++) {
+        //Высокий уровень по умолчанию
+        furi_hal_gpio_write(app->sensors[i].GPIO, true);
+        //Режим работы - OpenDrain, подтяжка включается на всякий случай
+        furi_hal_gpio_init(
+            app->sensors[i].GPIO, //Порт FZ
+            GpioModeOutputOpenDrain, //Режим работы - открытый сток
+            GpioPullUp, //Принудительная подтяжка линии данных к питанию
+            GpioSpeedVeryHigh); //Скорость работы - максимальная
+    }
+}
+
+void DHTMon_sensors_deinit(void) {
+    //Возврат исходного состояния 5V
+    if(app->last_OTG_State != true) {
+        furi_hal_power_disable_otg();
+    }
+
+    //Перевод портов GPIO в состояние по умолчанию
+    for(uint8_t i = 0; i < app->sensors_count; i++) {
+        furi_hal_gpio_init(
+            app->sensors[i].GPIO, //Порт FZ
+            GpioModeAnalog, //Режим работы - аналог
+            GpioPullNo, //Отключение подтяжки
+            GpioSpeedLow); //Скорость работы - низкая
+        //Установка низкого уровня
+        furi_hal_gpio_write(app->sensors[i].GPIO, false);
+    }
+}
+
+bool DHTMon_sensor_check(DHT_sensor* sensor) {
+    /* Проверка имени */
+    //1) Строка должна быть длиной от 1 до 10 символов
+    //2) Первый символ строки должен быть только 0-9, A-Z, a-z и _
+    if(strlen(sensor->name) == 0 || strlen(sensor->name) > 10 ||
+       (!(sensor->name[0] >= '0' && sensor->name[0] <= '9') &&
+        !(sensor->name[0] >= 'A' && sensor->name[0] <= 'Z') &&
+        !(sensor->name[0] >= 'a' && sensor->name[0] <= 'z') && !(sensor->name[0] == '_'))) {
+        FURI_LOG_D(APP_NAME, "Sensor [%s] name check failed\r\n", sensor->name);
+        return false;
+    }
+    //Проверка GPIO
+    if(DHTMon_GPIO_to_int(sensor->GPIO) == 255) {
+        FURI_LOG_D(
+            APP_NAME,
+            "Sensor [%s] GPIO check failed: %d\r\n",
+            sensor->name,
+            DHTMon_GPIO_to_int(sensor->GPIO));
+        return false;
+    }
+    //Проверка типа датчика
+    if(sensor->type != DHT11 && sensor->type != DHT22) {
+        FURI_LOG_D(APP_NAME, "Sensor [%s] type check failed: %d\r\n", sensor->name, sensor->type);
+        return false;
+    }
+
+    //Возврат истины если всё ок
+    FURI_LOG_D(APP_NAME, "Sensor [%s] all checks passed\r\n", sensor->name);
+    return true;
+}
+
+void DHTMon_sensor_delete(DHT_sensor* sensor) {
+    if(sensor == NULL) return;
+    //Делаем параметры датчика неверными
+    sensor->name[0] = '\0';
+    sensor->type = 255;
+    //Теперь сохраняем текущие датчики. Сохранятор не сохранит неисправный датчик
+    DHTMon_sensors_save();
+    //Перезагружаемся с SD-карты
+    DHTMon_sensors_reload();
+}
+
+uint8_t DHTMon_sensors_save(void) {
+    //Выделение памяти для потока
+    app->file_stream = file_stream_alloc(app->storage);
+    uint8_t savedSensorsCount = 0;
+    //Переменная пути к файлу
+    FuriString* filepath = furi_string_alloc();
+    //Составление пути к файлу
+    furi_string_printf(filepath, "%s/%s", APP_PATH_FOLDER, APP_FILENAME);
+
+    //Открытие потока. Если поток открылся, то выполнение сохранения датчиков
+    if(file_stream_open(
+           app->file_stream, furi_string_get_cstr(filepath), FSAM_READ_WRITE, FSOM_CREATE_ALWAYS)) {
+        const char template[] =
+            "#DHT monitor sensors file\n#Name - name of sensor. Up to 10 sumbols\n#Type - type of sensor. DHT11 - 0, DHT22 - 1\n#GPIO - connection port. May being 2-7, 10, 12-17\n#Name Type GPIO\n";
+        stream_write(app->file_stream, (uint8_t*)template, strlen(template));
+        //Сохранение датчиков
+        for(uint8_t i = 0; i < app->sensors_count; i++) {
+            //Если параметры датчика верны, то сохраняемся
+            if(DHTMon_sensor_check(&app->sensors[i])) {
+                stream_write_format(
+                    app->file_stream,
+                    "%s %d %d\n",
+                    app->sensors[i].name,
+                    app->sensors[i].type,
+                    DHTMon_GPIO_to_int(app->sensors[i].GPIO));
+                savedSensorsCount++;
+            }
+        }
+    } else {
+        //TODO: печать ошибки на экран
+        FURI_LOG_E(APP_NAME, "cannot create sensors file\r\n");
+    }
+    stream_free(app->file_stream);
+
+    return savedSensorsCount;
+}
+
+bool DHTMon_sensors_load(void) {
+    //Обнуление количества датчиков
+    app->sensors_count = -1;
+    //Очистка предыдущих датчиков
+    memset(app->sensors, 0, sizeof(app->sensors));
+
+    //Открытие файла на SD-карте
+    //Выделение памяти для потока
+    app->file_stream = file_stream_alloc(app->storage);
+    //Переменная пути к файлу
+    FuriString* filepath = furi_string_alloc();
+    //Составление пути к файлу
+    furi_string_printf(filepath, "%s/%s", APP_PATH_FOLDER, APP_FILENAME);
+    //Открытие потока к файлу
+    if(!file_stream_open(
+           app->file_stream, furi_string_get_cstr(filepath), FSAM_READ_WRITE, FSOM_OPEN_EXISTING)) {
+        //Если файл отсутствует, то создание болванки
+        FURI_LOG_W(APP_NAME, "Missing sensors file. Creating new file\r\n");
+        app->sensors_count = 0;
+        stream_free(app->file_stream);
+        DHTMon_sensors_save();
+        return false;
+    }
+    //Вычисление размера файла
+    size_t file_size = stream_size(app->file_stream);
+    if(file_size == (size_t)0) {
+        //Выход если файл пустой
+        FURI_LOG_W(APP_NAME, "Sensors file is empty\r\n");
+        app->sensors_count = 0;
+        stream_free(app->file_stream);
+        return false;
+    }
+
+    //Выделение памяти под загрузку файла
+    uint8_t* file_buf = malloc(file_size);
+    //Опустошение буфера файла
+    memset(file_buf, 0, file_size);
+    //Загрузка файла
+    if(stream_read(app->file_stream, file_buf, file_size) != file_size) {
+        //Выход при ошибке чтения
+        FURI_LOG_E(APP_NAME, "Error reading sensor file\r\n");
+        app->sensors_count = 0;
+        stream_free(app->file_stream);
+        return false;
+    }
+    //Построчное чтение файла
+    //Указатель на начало строки
+    FuriString* file = furi_string_alloc_set_str((char*)file_buf);
+    //Сколько байт до конца строки
+    size_t line_end = 0;
+    while(line_end != STRING_FAILURE && app->sensors_count < MAX_SENSORS) {
+        if(((char*)(file_buf + line_end))[1] != '#') {
+            DHT_sensor s = {0};
+            int type, port;
+            char name[11] = {0};
+            sscanf(((char*)(file_buf + line_end)), "%s %d %d", name, &type, &port);
+            s.type = type;
+            s.GPIO = DHTMon_GPIO_form_int(port);
+
+            name[10] = '\0';
+            strcpy(s.name, name);
+            //Если данные корректны, то
+            if(DHTMon_sensor_check(&s) == true) {
+                //Установка нуля при первом датчике
+                if(app->sensors_count == -1) app->sensors_count = 0;
+                //Добавление датчика в общий список
+                app->sensors[app->sensors_count] = s;
+                //Увеличение количества загруженных датчиков
+                app->sensors_count++;
+            }
+        }
+        line_end = furi_string_search_char(file, '\n', line_end + 1);
+    }
+    stream_free(app->file_stream);
+    free(file_buf);
+
+    //Обнуление количества датчиков если ни один из них не был загружен
+    if(app->sensors_count == -1) app->sensors_count = 0;
+
+    //Инициализация портов датчиков если таковые есть
+    if(app->sensors_count > 0) {
+        DHTMon_sensors_init();
+        return true;
+    } else {
+        return false;
+    }
+    return false;
+}
+
+bool DHTMon_sensors_reload(void) {
+    DHTMon_sensors_deinit();
+    return DHTMon_sensors_load();
+}
+
+/**
+ * @brief Обработчик отрисовки экрана
+ * 
+ * @param canvas Указатель на холст
+ * @param ctx Данные плагина
+ */
+static void render_callback(Canvas* const canvas, void* ctx) {
+    PluginData* app = acquire_mutex((ValueMutex*)ctx, 25);
+    if(app == NULL) {
+        return;
+    }
+    //Вызов отрисовки главного экрана
+    scene_main(canvas, app);
+
+    release_mutex((ValueMutex*)ctx, app);
+}
+
+/**
+ * @brief Обработчик нажатия кнопок главного экрана
+ * 
+ * @param input_event Указатель на событие
+ * @param event_queue Указатель на очередь событий
+ */
+static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
+    furi_assert(event_queue);
+
+    PluginEvent event = {.type = EventTypeKey, .input = *input_event};
+    furi_message_queue_put(event_queue, &event, FuriWaitForever);
+}
+
+/**
+ * @brief Выделение места под переменные плагина
+ * 
+ * @return true Если всё прошло успешно
+ * @return false Если в процессе загрузки произошла ошибка
+ */
+static bool DHTMon_alloc(void) {
+    //Выделение места под данные плагина
+    app = malloc(sizeof(PluginData));
+    //Выделение места под очередь событий
+    app->event_queue = furi_message_queue_alloc(8, sizeof(PluginEvent));
+
+    //Обнуление количества датчиков
+    app->sensors_count = -1;
+
+    //Инициализация мутекса
+    if(!init_mutex(&app->state_mutex, app, sizeof(PluginData))) {
+        FURI_LOG_E(APP_NAME, "cannot create mutex\r\n");
+        return false;
+    }
+
+    // Set system callbacks
+    app->view_port = view_port_alloc();
+    view_port_draw_callback_set(app->view_port, render_callback, &app->state_mutex);
+    view_port_input_callback_set(app->view_port, input_callback, app->event_queue);
+
+    // Open GUI and register view_port
+    app->gui = furi_record_open(RECORD_GUI);
+    gui_add_view_port(app->gui, app->view_port, GuiLayerFullscreen);
+
+    app->view_dispatcher = view_dispatcher_alloc();
+
+    sensorActions_sceneCreate(app);
+    sensorEdit_sceneCreate(app);
+
+    app->widget = widget_alloc();
+    view_dispatcher_add_view(app->view_dispatcher, WIDGET_VIEW, widget_get_view(app->widget));
+
+    app->text_input = text_input_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher, TEXTINPUT_VIEW, text_input_get_view(app->text_input));
+
+    view_dispatcher_enable_queue(app->view_dispatcher);
+    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+
+    //Уведомления
+    app->notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    //Подготовка хранилища
+    app->storage = furi_record_open(RECORD_STORAGE);
+    storage_common_mkdir(app->storage, APP_PATH_FOLDER);
+    app->file_stream = file_stream_alloc(app->storage);
+
+    return true;
+}
+
+/**
+ * @brief Освыбождение памяти после работы приложения
+ */
+static void DHTMon_free(void) {
+    //Автоматическое управление подсветкой
+    notification_message(app->notifications, &sequence_display_backlight_enforce_auto);
+
+    furi_record_close(RECORD_STORAGE);
+    furi_record_close(RECORD_NOTIFICATION);
+
+    text_input_free(app->text_input);
+    widget_free(app->widget);
+    sensorEdit_sceneRemove();
+    sensorActions_screneRemove();
+    view_dispatcher_free(app->view_dispatcher);
+
+    furi_record_close(RECORD_GUI);
+
+    view_port_enabled_set(app->view_port, false);
+    gui_remove_view_port(app->gui, app->view_port);
+
+    view_port_free(app->view_port);
+    furi_message_queue_free(app->event_queue);
+    delete_mutex(&app->state_mutex);
+
+    free(app);
+}
+
+/**
+ * @brief Точка входа в приложение
+ * 
+ * @return Код ошибки
+ */
+int32_t quenon_dht_mon_app() {
+    if(!DHTMon_alloc()) {
+        DHTMon_free();
+        return 255;
+    }
+    //Постоянное свечение подсветки
+    notification_message(app->notifications, &sequence_display_backlight_enforce_on);
+    //Сохранение состояния наличия 5V на порту 1 FZ
+    app->last_OTG_State = furi_hal_power_is_otg_enabled();
+
+    //Загрузка датчиков с SD-карты
+    DHTMon_sensors_load();
+
+    app->currentSensorEdit = &app->sensors[0];
+
+    PluginEvent event;
+    for(bool processing = true; processing;) {
+        FuriStatus event_status = furi_message_queue_get(app->event_queue, &event, 100);
+
+        acquire_mutex_block(&app->state_mutex);
+
+        if(event_status == FuriStatusOk) {
+            // press events
+            if(event.type == EventTypeKey) {
+                if(event.input.type == InputTypePress) {
+                    switch(event.input.key) {
+                    case InputKeyUp:
+                        break;
+                    case InputKeyDown:
+                        break;
+                    case InputKeyRight:
+                        break;
+                    case InputKeyLeft:
+                        break;
+                    case InputKeyMAX:
+                        break;
+                    case InputKeyOk:
+                        view_port_update(app->view_port);
+                        release_mutex(&app->state_mutex, app);
+                        mainMenu_scene(app);
+                        break;
+                    case InputKeyBack:
+                        processing = false;
+                        break;
+                    default:
+                        break;
+                    }
+                }
+            }
+        } else {
+            FURI_LOG_D(APP_NAME, "FuriMessageQueue: event timeout");
+            // event timeout
+        }
+
+        view_port_update(app->view_port);
+        release_mutex(&app->state_mutex, app);
+    }
+    //Освобождение памяти и деинициализация
+    DHTMon_sensors_deinit();
+    DHTMon_free();
+
+    return 0;
+}
+//TODO: Обработка ошибок
+//TODO: Пропуск использованных портов в меню добавления датчиков

applications/plugins/dht_temp_sensor/quenon_dht_mon.h

@@ -0,0 +1,176 @@
+#ifndef QUENON_DHT_MON
+#define QUENON_DHT_MON
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <furi.h>
+#include <furi_hal_power.h>
+
+#include <gui/gui.h>
+#include <gui/modules/submenu.h>
+#include <gui/modules/variable_item_list.h>
+#include <gui/modules/text_input.h>
+#include <gui/modules/widget.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+
+#include <notification/notification.h>
+#include <notification/notification_messages.h>
+
+#include <toolbox/stream/file_stream.h>
+#include <input/input.h>
+
+#include "DHT.h"
+
+#define APP_NAME "DHT_monitor"
+#define APP_PATH_FOLDER "/ext/dht_monitor"
+#define APP_FILENAME "sensors.txt"
+#define MAX_SENSORS 5
+
+// //Виды менюшек
+typedef enum {
+    MAIN_MENU_VIEW,
+    ADDSENSOR_MENU_VIEW,
+    TEXTINPUT_VIEW,
+    SENSOR_ACTIONS_VIEW,
+    WIDGET_VIEW,
+} MENU_VIEWS;
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+typedef struct {
+    EventType type;
+    InputEvent input;
+} PluginEvent;
+
+typedef struct {
+    const uint8_t num;
+    const char* name;
+    const GpioPin* pin;
+} GpioItem;
+
+//Структура с данными плагина
+typedef struct {
+    //Очередь сообщений
+    FuriMessageQueue* event_queue;
+    //Мутекс
+    ValueMutex state_mutex;
+    //Вьюпорт
+    ViewPort* view_port;
+    //GUI
+    Gui* gui;
+    NotificationApp* notifications;
+    ViewDispatcher* view_dispatcher;
+    View* view;
+    TextInput* text_input;
+    VariableItem* item;
+    Widget* widget;
+
+    char txtbuff[30]; //Буффер для печати строк на экране
+    bool last_OTG_State; //Состояние OTG до запуска приложения
+    Storage* storage; //Хранилище датчиков
+    Stream* file_stream; //Поток файла с датчиками
+    int8_t sensors_count; // Количество загруженных датчиков
+    DHT_sensor sensors[MAX_SENSORS]; //Сохранённые датчики
+    DHT_data data; //Инфа из датчика
+    DHT_sensor* currentSensorEdit; //Указатель на редактируемый датчик
+
+} PluginData;
+
+/* ================== Работа с GPIO ================== */
+/**
+ * @brief Конвертация GPIO в его номер на корпусе FZ
+ * 
+ * @param gpio Указатель на преобразовываемый GPIO
+ * @return Номер порта на корпусе FZ
+ */
+uint8_t DHTMon_GPIO_to_int(const GpioPin* gpio);
+/**
+ * @brief Конвертация номера порта на корпусе FZ в GPIO 
+ * 
+ * @param name Номер порта на корпусе FZ
+ * @return Указатель на GPIO при успехе, NULL при ошибке
+ */
+const GpioPin* DHTMon_GPIO_form_int(uint8_t name);
+/**
+ * @brief Преобразование порядкового номера порта в GPIO
+ * 
+ * @param index Индекс порта от 0 до GPIO_ITEMS-1
+ * @return Указатель на GPIO при успехе, NULL при ошибке
+ */
+const GpioPin* DHTMon_GPIO_from_index(uint8_t index);
+/**
+ * @brief Преобразование GPIO в порядковый номер порта
+ * 
+ * @param gpio Указатель на GPIO
+ * @return index при успехе, 255 при ошибке
+ */
+uint8_t DHTMon_GPIO_to_index(const GpioPin* gpio);
+
+/**
+ * @brief Получить имя GPIO в виде строки
+ * 
+ * @param gpio Искомый порт
+ * @return char* Указатель на строку с именем порта
+ */
+const char* DHTMon_GPIO_getName(const GpioPin* gpio);
+
+/* ================== Работа с датчиками ================== */
+/**
+ * @brief Инициализация портов ввода/вывода датчиков
+ */
+void DHTMon_sensors_init(void);
+/**
+ * @brief Функция деинициализации портов ввода/вывода датчиков
+ */
+void DHTMon_sensors_deinit(void);
+/**
+ * @brief Проверка корректности параметров датчика
+ * 
+ * @param sensor Указатель на проверяемый датчик
+ * @return true Параметры датчика корректные
+ * @return false Параметры датчика некорректные
+ */
+bool DHTMon_sensor_check(DHT_sensor* sensor);
+/**
+ * @brief Удаление датчика из списка и перезагрузка
+ * 
+ * @param sensor Указатель на удаляемый датчик
+ */
+void DHTMon_sensor_delete(DHT_sensor* sensor);
+/**
+ * @brief Сохранение датчиков на SD-карту
+ * 
+ * @return Количество сохранённых датчиков
+ */
+uint8_t DHTMon_sensors_save(void);
+/**
+ * @brief Загрузка датчиков с SD-карты
+ * 
+ * @return true Был загружен хотя бы 1 датчик
+ * @return false Датчики отсутствуют
+ */
+bool DHTMon_sensors_load(void);
+/**
+ * @brief Перезагрузка датчиков с SD-карты
+ * 
+ * @return true Когда был загружен хотя бы 1 датчик
+ * @return false Ни один из датчиков не был загружен
+ */
+bool DHTMon_sensors_reload(void);
+
+void scene_main(Canvas* const canvas, PluginData* app);
+void mainMenu_scene(PluginData* app);
+
+void sensorEdit_sceneCreate(PluginData* app);
+void sensorEdit_scene(PluginData* app);
+void sensorEdit_sceneRemove(void);
+
+void sensorActions_sceneCreate(PluginData* app);
+void sensorActions_scene(PluginData* app);
+void sensorActions_screneRemove(void);
+#endif

applications/plugins/dht_temp_sensor/scenes/DHTMon_mainMenu_scene.c

@@ -0,0 +1,157 @@
+#include "../quenon_dht_mon.h"
+//Текущий вид
+static View* view;
+//Список
+static VariableItemList* variable_item_list;
+
+/**
+ * @brief Функция обработки нажатия кнопки "Назад"
+ * 
+ * @param context Указатель на данные приложения
+ * @return ID вида в который нужно переключиться
+ */
+static uint32_t actions_exitCallback(void* context) {
+    PluginData* app = context;
+    UNUSED(app);
+    //Возвращаем ID вида, в который нужно вернуться
+    return VIEW_NONE;
+}
+/**
+ * @brief Функция обработки нажатия средней кнопки
+ * 
+ * @param context Указатель на данные приложения
+ * @param index На каком элементе списка была нажата кнопка
+ */
+static void enterCallback(void* context, uint32_t index) {
+    PluginData* app = context;
+    if((uint8_t)index < (uint8_t)app->sensors_count) {
+        app->currentSensorEdit = &app->sensors[index];
+        sensorActions_scene(app);
+    }
+    if((uint8_t)index == (uint8_t)app->sensors_count) {
+        app->currentSensorEdit = &app->sensors[app->sensors_count++];
+        strcpy(app->currentSensorEdit->name, "NewSensor");
+        app->currentSensorEdit->GPIO = DHTMon_GPIO_from_index(0);
+        app->currentSensorEdit->type = DHT11;
+        sensorEdit_scene(app);
+    }
+}
+
+/**
+ * @brief Создание списка действий с указанным датчиком
+ * 
+ * @param app Указатель на данные плагина
+ */
+void mainMenu_scene(PluginData* app) {
+    variable_item_list = variable_item_list_alloc();
+    //Сброс всех элементов меню
+    variable_item_list_reset(variable_item_list);
+    //Добавление названий датчиков в качестве элементов списка
+    for(uint8_t i = 0; i < app->sensors_count; i++) {
+        variable_item_list_add(variable_item_list, app->sensors[i].name, 1, NULL, NULL);
+    }
+    if(app->sensors_count < (uint8_t)MAX_SENSORS) {
+        variable_item_list_add(variable_item_list, "       + Add new sensor +", 1, NULL, NULL);
+    }
+
+    //Добавление колбека на нажатие средней кнопки
+    variable_item_list_set_enter_callback(variable_item_list, enterCallback, app);
+
+    //Создание вида из списка
+    view = variable_item_list_get_view(variable_item_list);
+    //Добавление колбека на нажатие кнопки "Назад"
+    view_set_previous_callback(view, actions_exitCallback);
+    //Добавление вида в диспетчер
+    view_dispatcher_add_view(app->view_dispatcher, MAIN_MENU_VIEW, view);
+
+    view_dispatcher_enable_queue(app->view_dispatcher);
+
+    //Переключение на наш вид
+    view_dispatcher_switch_to_view(app->view_dispatcher, MAIN_MENU_VIEW);
+
+    //Запуск диспетчера
+    view_dispatcher_run(app->view_dispatcher);
+
+    //Очистка списка элементов
+    variable_item_list_free(variable_item_list);
+    //Удаление вида после обработки
+    view_dispatcher_remove_view(app->view_dispatcher, MAIN_MENU_VIEW);
+}
+
+/*
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+*/
+
+// static VariableItemList* variable_item_list;
+// /* ============== Главное меню ============== */
+// static uint32_t mainMenu_exitCallback(void* context) {
+//     UNUSED(context);
+//     variable_item_list_free(variable_item_list);
+//     DHT_sensors_reload();
+//     return VIEW_NONE;
+// }
+// static void mainMenu_enterCallback(void* context, uint32_t index) {
+//     PluginData* app = context;
+//     if((uint8_t)index == (uint8_t)app->sensors_count) {
+//         addSensor_scene(app);
+//         view_dispatcher_run(app->view_dispatcher);
+//     }
+// }
+// void mainMenu_scene(PluginData* app) {
+//     variable_item_list = variable_item_list_alloc();
+//     variable_item_list_reset(variable_item_list);
+//     for(uint8_t i = 0; i < app->sensors_count; i++) {
+//         variable_item_list_add(variable_item_list, app->sensors[i].name, 1, NULL, NULL);
+//     }
+//     variable_item_list_add(variable_item_list, "+ Add new sensor +", 1, NULL, NULL);
+
+//     app->view = variable_item_list_get_view(variable_item_list);
+//     app->view_dispatcher = view_dispatcher_alloc();
+
+//     view_dispatcher_enable_queue(app->view_dispatcher);
+//     view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+//     view_dispatcher_add_view(app->view_dispatcher, MAIN_MENU_VIEW, app->view);
+//     view_dispatcher_switch_to_view(app->view_dispatcher, MAIN_MENU_VIEW);
+
+//     variable_item_list_set_enter_callback(variable_item_list, mainMenu_enterCallback, app);
+//     view_set_previous_callback(app->view, mainMenu_exitCallback);
+// }

applications/plugins/dht_temp_sensor/scenes/DHTMon_main_scene.c

@@ -0,0 +1,40 @@
+#include "../quenon_dht_mon.h"
+
+/* ============== Главный экран ============== */
+void scene_main(Canvas* const canvas, PluginData* app) {
+    //Рисование бара
+    canvas_draw_box(canvas, 0, 0, 128, 14);
+    canvas_set_color(canvas, ColorWhite);
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str(canvas, 32, 11, "DHT Monitor");
+
+    canvas_set_color(canvas, ColorBlack);
+    if(app->sensors_count > 0) {
+        if(!furi_hal_power_is_otg_enabled()) {
+            furi_hal_power_enable_otg();
+        }
+        for(uint8_t i = 0; i < app->sensors_count; i++) {
+            app->data = DHT_getData(&app->sensors[i]);
+
+            canvas_set_font(canvas, FontPrimary);
+            canvas_draw_str(canvas, 0, 24 + 10 * i, app->sensors[i].name);
+
+            canvas_set_font(canvas, FontSecondary);
+            if(app->data.hum == -128.0f && app->data.temp == -128.0f) {
+                canvas_draw_str(canvas, 96, 24 + 10 * i, "timeout");
+            } else {
+                snprintf(
+                    app->txtbuff,
+                    sizeof(app->txtbuff),
+                    "%2.1f*C/%d%%",
+                    (double)app->data.temp,
+                    (int8_t)app->data.hum);
+                canvas_draw_str(canvas, 64, 24 + 10 * i, app->txtbuff);
+            }
+        }
+    } else {
+        canvas_set_font(canvas, FontSecondary);
+        if(app->sensors_count == 0) canvas_draw_str(canvas, 0, 24, "Sensors not found");
+        if(app->sensors_count == -1) canvas_draw_str(canvas, 0, 24, "Loading...");
+    }
+}

applications/plugins/dht_temp_sensor/scenes/DHTMon_sensorActions_scene.c

@@ -0,0 +1,194 @@
+#include "../quenon_dht_mon.h"
+
+//Текущий вид
+static View* view;
+//Список
+static VariableItemList* variable_item_list;
+
+/* ================== Информация о датчике ================== */
+/**
+ * @brief Функция обработки нажатия кнопки "Назад"
+ * 
+ * @param context Указатель на данные приложения
+ * @return ID вида в который нужно переключиться
+ */
+static uint32_t infoWidget_exitCallback(void* context) {
+    PluginData* app = context;
+    UNUSED(app);
+    //Возвращаем ID вида, в который нужно вернуться
+    return SENSOR_ACTIONS_VIEW;
+}
+/**
+ * @brief Обработчик нажатий на кнопку в виджете
+ * 
+ * @param result Какая из кнопок была нажата
+ * @param type Тип нажатия
+ * @param context Указатель на данные плагина
+ */
+static void infoWidget_callback(GuiButtonType result, InputType type, void* context) {
+    PluginData* app = context;
+    //Коротко нажата левая кнопка (Back)
+    if(result == GuiButtonTypeLeft && type == InputTypeShort) {
+        view_dispatcher_switch_to_view(app->view_dispatcher, SENSOR_ACTIONS_VIEW);
+    }
+}
+/**
+ * @brief Создание виджета информации о датчике
+ * 
+ * @param app Указатель на данные плагина
+ */
+static void sensorInfo_widget(PluginData* app) {
+    //Очистка виджета
+    widget_reset(app->widget);
+    //Добавление кнопок
+    widget_add_button_element(app->widget, GuiButtonTypeLeft, "Back", infoWidget_callback, app);
+
+    char str[32];
+    snprintf(str, sizeof(str), "\e#%s\e#", app->currentSensorEdit->name);
+    widget_add_text_box_element(app->widget, 0, 0, 128, 23, AlignCenter, AlignCenter, str, false);
+    snprintf(str, sizeof(str), "\e#Type:\e# %s", app->currentSensorEdit->type ? "DHT22" : "DHT11");
+    widget_add_text_box_element(app->widget, 0, 0, 128, 47, AlignLeft, AlignCenter, str, false);
+    snprintf(
+        str, sizeof(str), "\e#GPIO:\e# %s", DHTMon_GPIO_getName(app->currentSensorEdit->GPIO));
+    widget_add_text_box_element(app->widget, 0, 0, 128, 72, AlignLeft, AlignCenter, str, false);
+    view_set_previous_callback(widget_get_view(app->widget), infoWidget_exitCallback);
+    view_dispatcher_switch_to_view(app->view_dispatcher, WIDGET_VIEW);
+}
+
+/* ================== Подтверждение удаления ================== */
+/**
+ * @brief Функция обработки нажатия кнопки "Назад"
+ * 
+ * @param context Указатель на данные приложения
+ * @return ID вида в который нужно переключиться
+ */
+static uint32_t deleteWidget_exitCallback(void* context) {
+    PluginData* app = context;
+    UNUSED(app);
+    //Возвращаем ID вида, в который нужно вернуться
+    return SENSOR_ACTIONS_VIEW;
+}
+/**
+ * @brief Обработчик нажатий на кнопку в виджете
+ * 
+ * @param result Какая из кнопок была нажата
+ * @param type Тип нажатия
+ * @param context Указатель на данные плагина
+ */
+static void deleteWidget_callback(GuiButtonType result, InputType type, void* context) {
+    PluginData* app = context;
+    //Коротко нажата левая кнопка (Cancel)
+    if(result == GuiButtonTypeLeft && type == InputTypeShort) {
+        view_dispatcher_switch_to_view(app->view_dispatcher, SENSOR_ACTIONS_VIEW);
+    }
+    //Коротко нажата правая кнопка (Delete)
+    if(result == GuiButtonTypeRight && type == InputTypeShort) {
+        //Удаление датчика
+        DHTMon_sensor_delete(app->currentSensorEdit);
+        //Выход из меню
+        view_dispatcher_switch_to_view(app->view_dispatcher, VIEW_NONE);
+    }
+}
+/**
+ * @brief Создание виджета удаления датчика
+ * 
+ * @param app Указатель на данные плагина
+ */
+static void sensorDelete_widget(PluginData* app) {
+    //Очистка виджета
+    widget_reset(app->widget);
+    //Добавление кнопок
+    widget_add_button_element(
+        app->widget, GuiButtonTypeLeft, "Cancel", deleteWidget_callback, app);
+    widget_add_button_element(
+        app->widget, GuiButtonTypeRight, "Delete", deleteWidget_callback, app);
+
+    char delete_str[32];
+    snprintf(delete_str, sizeof(delete_str), "\e#Delete %s?\e#", app->currentSensorEdit->name);
+    widget_add_text_box_element(
+        app->widget, 0, 0, 128, 23, AlignCenter, AlignCenter, delete_str, false);
+    snprintf(
+        delete_str,
+        sizeof(delete_str),
+        "\e#Type:\e# %s",
+        app->currentSensorEdit->type ? "DHT22" : "DHT11");
+    widget_add_text_box_element(
+        app->widget, 0, 0, 128, 47, AlignLeft, AlignCenter, delete_str, false);
+    snprintf(
+        delete_str,
+        sizeof(delete_str),
+        "\e#GPIO:\e# %s",
+        DHTMon_GPIO_getName(app->currentSensorEdit->GPIO));
+    widget_add_text_box_element(
+        app->widget, 0, 0, 128, 72, AlignLeft, AlignCenter, delete_str, false);
+    view_set_previous_callback(widget_get_view(app->widget), deleteWidget_exitCallback);
+    view_dispatcher_switch_to_view(app->view_dispatcher, WIDGET_VIEW);
+}
+
+/* ================== Меню действий ================== */
+/**
+ * @brief Функция обработки нажатия средней кнопки
+ * 
+ * @param context Указатель на данные приложения
+ * @param index На каком элементе списка была нажата кнопка
+ */
+static void enterCallback(void* context, uint32_t index) {
+    PluginData* app = context;
+    if(index == 0) {
+        sensorInfo_widget(app);
+    }
+    if(index == 1) {
+        sensorEdit_scene(app);
+    }
+    if(index == 2) {
+        sensorDelete_widget(app);
+    }
+}
+
+/**
+ * @brief Функция обработки нажатия кнопки "Назад"
+ * 
+ * @param context Указатель на данные приложения
+ * @return ID вида в который нужно переключиться
+ */
+static uint32_t actions_exitCallback(void* context) {
+    PluginData* app = context;
+    UNUSED(app);
+    //Возвращаем ID вида, в который нужно вернуться
+    return MAIN_MENU_VIEW;
+}
+
+/**
+ * @brief Создание списка действий с указанным датчиком
+ * 
+ * @param app Указатель на данные плагина
+ */
+void sensorActions_sceneCreate(PluginData* app) {
+    variable_item_list = variable_item_list_alloc();
+    //Сброс всех элементов меню
+    variable_item_list_reset(variable_item_list);
+    //Добавление элементов в список
+    variable_item_list_add(variable_item_list, "Info", 0, NULL, NULL);
+    variable_item_list_add(variable_item_list, "Edit", 0, NULL, NULL);
+    variable_item_list_add(variable_item_list, "Delete", 0, NULL, NULL);
+
+    //Добавление колбека на нажатие средней кнопки
+    variable_item_list_set_enter_callback(variable_item_list, enterCallback, app);
+
+    //Создание вида из списка
+    view = variable_item_list_get_view(variable_item_list);
+    //Добавление колбека на нажатие кнопки "Назад"
+    view_set_previous_callback(view, actions_exitCallback);
+    //Добавление вида в диспетчер
+    view_dispatcher_add_view(app->view_dispatcher, SENSOR_ACTIONS_VIEW, view);
+}
+void sensorActions_scene(PluginData* app) {
+    //Сброс выбранного пункта в ноль
+    variable_item_list_set_selected_item(variable_item_list, 0);
+    //Переключение на наш вид
+    view_dispatcher_switch_to_view(app->view_dispatcher, SENSOR_ACTIONS_VIEW);
+}
+
+void sensorActions_screneRemove(void) {
+    variable_item_list_free(variable_item_list);
+}

applications/plugins/dht_temp_sensor/scenes/DHTMon_sensorEdit_scene.c

@@ -0,0 +1,103 @@
+#include "../quenon_dht_mon.h"
+
+static VariableItem* nameItem;
+static VariableItemList* variable_item_list;
+
+static const char* const sensorsTypes[2] = {
+    "DHT11",
+    "DHT22",
+};
+
+// /* ============== Добавление датчика ============== */
+static uint32_t addSensor_exitCallback(void* context) {
+    UNUSED(context);
+    DHTMon_sensors_reload();
+    return VIEW_NONE;
+}
+
+static void addSensor_sensorTypeChanged(VariableItem* item) {
+    uint8_t index = variable_item_get_current_value_index(item);
+    PluginData* app = variable_item_get_context(item);
+    variable_item_set_current_value_text(item, sensorsTypes[index]);
+    app->currentSensorEdit->type = index;
+}
+
+static void addSensor_GPIOChanged(VariableItem* item) {
+    uint8_t index = variable_item_get_current_value_index(item);
+    variable_item_set_current_value_text(item, DHTMon_GPIO_getName(DHTMon_GPIO_from_index(index)));
+    PluginData* app = variable_item_get_context(item);
+    app->currentSensorEdit->GPIO = DHTMon_GPIO_from_index(index);
+}
+
+static void addSensor_sensorNameChanged(void* context) {
+    PluginData* app = context;
+    variable_item_set_current_value_text(nameItem, app->currentSensorEdit->name);
+    view_dispatcher_switch_to_view(app->view_dispatcher, ADDSENSOR_MENU_VIEW);
+}
+static void addSensor_sensorNameChange(PluginData* app) {
+    text_input_set_header_text(app->text_input, "Sensor name");
+    //По неясной мне причине в длину строки входит терминатор. Поэтому при длине 10 приходится указывать 11
+    text_input_set_result_callback(
+        app->text_input, addSensor_sensorNameChanged, app, app->currentSensorEdit->name, 11, true);
+    view_dispatcher_switch_to_view(app->view_dispatcher, TEXTINPUT_VIEW);
+}
+
+static void addSensor_enterCallback(void* context, uint32_t index) {
+    PluginData* app = context;
+    if(index == 0) {
+        addSensor_sensorNameChange(app);
+    }
+    if(index == 3) {
+        //Сохранение датчика
+        DHTMon_sensors_save();
+        DHTMon_sensors_reload();
+        view_dispatcher_switch_to_view(app->view_dispatcher, VIEW_NONE);
+    }
+}
+
+void sensorEdit_sceneCreate(PluginData* app) {
+    variable_item_list = variable_item_list_alloc();
+
+    variable_item_list_reset(variable_item_list);
+
+    variable_item_list_set_enter_callback(variable_item_list, addSensor_enterCallback, app);
+
+    app->view = variable_item_list_get_view(variable_item_list);
+
+    view_set_previous_callback(app->view, addSensor_exitCallback);
+
+    view_dispatcher_add_view(app->view_dispatcher, ADDSENSOR_MENU_VIEW, app->view);
+}
+void sensorEdit_scene(PluginData* app) {
+    //Очистка списка
+    variable_item_list_reset(variable_item_list);
+
+    //Имя редактируемого датчика
+    nameItem = variable_item_list_add(variable_item_list, "Name: ", 1, NULL, NULL);
+    variable_item_set_current_value_index(nameItem, 0);
+    variable_item_set_current_value_text(nameItem, app->currentSensorEdit->name);
+
+    //Тип датчика
+    app->item =
+        variable_item_list_add(variable_item_list, "Type:", 2, addSensor_sensorTypeChanged, app);
+
+    variable_item_set_current_value_index(app->item, app->currentSensorEdit->type);
+    variable_item_set_current_value_text(app->item, sensorsTypes[app->currentSensorEdit->type]);
+
+    //GPIO
+    app->item =
+        variable_item_list_add(variable_item_list, "GPIO:", 13, addSensor_GPIOChanged, app);
+    variable_item_set_current_value_index(
+        app->item, DHTMon_GPIO_to_index(app->currentSensorEdit->GPIO));
+    variable_item_set_current_value_text(
+        app->item, DHTMon_GPIO_getName(app->currentSensorEdit->GPIO));
+    variable_item_list_add(variable_item_list, "Save", 1, NULL, app);
+
+    //Сброс выбранного пункта в ноль
+    variable_item_list_set_selected_item(variable_item_list, 0);
+
+    view_dispatcher_switch_to_view(app->view_dispatcher, ADDSENSOR_MENU_VIEW);
+}
+void sensorEdit_sceneRemove(void) {
+    variable_item_list_free(variable_item_list);
+}

applications/plugins/dice2/LICENSE.md

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
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+any other work released this way by its authors.  You can apply it to
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+
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+price.  Our General Public Licenses are designed to make sure that you
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+
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+
+  Developers that use the GNU GPL protect your rights with two steps:
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+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
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+  Some devices are designed to deny users access to install or run
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applications/plugins/dice2/README.md

@@ -0,0 +1,21 @@
+# Flipper Zero DnD Dice
+
+<div style="text-align:center"><img src="sources/flipper-screen.png"/></div>
+<br />
+
+**DnD Dice** is a dice rolling application for your **Flipper Zero**.
+
+Dice types: Coin, d4, d6, d8, d10, d12, d20, d100
+
+## Screenshots
+
+<div style="text-align:center"><img src="sources/main-screen.png"/></div>
+ <br />
+<div style="text-align:center"><img src="sources/roll-screen.png"/></div>
+
+## Compiling
+
+1. Clone the [flipperzero-firmware](https://github.com/flipperdevices/flipperzero-firmware) repository or another firmware that you use (for example [unleashed-firmware](https://github.com/DarkFlippers/unleashed-firmware)).
+2. Create a symbolic link in `applications_user` named **dice**, pointing to this repository.
+3. Compile by command `./fbt fap_dice_dnd_app`
+4. Copy `build/f7-firmware-D/.extapps/dice_dnd_app.fap` to **apps/Games** on the SD card or by [qFlipper](https://flipperzero.one/update) app.

applications/plugins/dice2/application.fam

@@ -0,0 +1,13 @@
+App(
+    appid="DND_Dice_app",
+    name="DnD Dice [Ka3u6y6a]",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="dice_dnd_app",
+    cdefines=["APP_DICE"],
+    requires=["gui"],
+    stack_size=1 * 1024,
+    order=90,
+	fap_icon="icon.png",
+    fap_category="Games",
+    fap_icon_assets="assets",
+)

applications/plugins/dice2/constants.h

@@ -0,0 +1,159 @@
+#include <gui/icon.h>
+#include "DND_Dice_app_icons.h"
+
+#define TAG "DiceApp"
+
+#define DICE_TYPES 8
+
+#define MAX_DICE_COUNT 10
+#define MAX_COIN_FRAMES 9
+#define MAX_DICE_FRAMES 4
+
+#define DICE_X 45
+#define DICE_Y 6
+#define DICE_Y_T 0
+
+#define DICE_GAP 44
+
+#define RESULT_BORDER_X 44
+#define RESULT_OFFSET 20
+
+#define SWIPE_DIST 11
+
+const Icon* coin_heads_start[] = {&I_coin_1, &I_coin_2};
+const Icon* coin_heads_end[] = {&I_coin_7, &I_coin_1};
+const Icon* coin_tails_start[] = {&I_coin_5, &I_coin_6};
+const Icon* coin_tails_end[] = {&I_coin_4, &I_coin_5};
+const Icon* coin_frames[] = {
+    &I_coin_1,
+    &I_coin_2,
+    &I_coin_3,
+    &I_coin_4,
+    &I_coin_5,
+    &I_coin_6,
+    &I_coin_3,
+    &I_coin_7,
+    &I_coin_1,
+};
+
+const int8_t result_frame_pos_y[] = {-30, -20, -10, 0};
+const Icon* dice_frames[] = {
+    &I_d4_1,   &I_d4_2,   &I_d4_3,   &I_d4_1, // d4
+    &I_d6_1,   &I_d6_2,   &I_d6_3,   &I_d6_4, // d6
+    &I_d8_1,   &I_d8_2,   &I_d8_3,   &I_d8_4, // d8
+    &I_d10_1,  &I_d10_2,  &I_d10_3,  &I_d10_4, // d10
+    &I_d12_1,  &I_d12_2,  &I_d12_3,  &I_d12_4, // d12
+    &I_d20_1,  &I_d20_2,  &I_d20_3,  &I_d20_4, // d20
+    &I_d100_1, &I_d100_2, &I_d100_3, &I_d100_4, // d100
+};
+
+typedef struct {
+    uint8_t type;
+    int x;
+    int y;
+    char* name;
+} Dice;
+
+const uint8_t screen_pos[] = {};
+
+static const Dice dice_types[] = {
+    {2, 0, 0, "Coin"},
+    {4, 0, 0, "d4"},
+    {6, 0, 0, "d6"},
+    {8, 0, 0, "d8"},
+    {10, 0, 0, "d10"},
+    {12, 0, 0, "d12"},
+    {20, 0, 0, "d20"},
+    {100, 0, 0, "d100"},
+};
+
+typedef enum { EventTypeTick, EventTypeKey } EventType;
+typedef enum {
+    SelectState,
+    SwipeLeftState,
+    SwipeRightState,
+    AnimState,
+    AnimResultState,
+    ResultState
+} AppState;
+
+typedef struct {
+    EventType type;
+    InputEvent input;
+} AppEvent;
+
+typedef struct {
+    AppState app_state;
+    uint16_t roll_result;
+    uint8_t rolled_dices[MAX_DICE_COUNT];
+    uint8_t anim_frame;
+    uint8_t dice_index;
+    uint8_t dice_count;
+    int8_t result_pos;
+    Dice dices[DICE_TYPES];
+} State;
+
+void init(State* const state) {
+    state->app_state = SelectState;
+    state->roll_result = 0;
+    state->dice_index = 0;
+    state->anim_frame = 0;
+    state->dice_count = 1;
+
+    for(uint8_t i = 0; i < DICE_TYPES; i++) {
+        state->dices[i] = dice_types[i];
+        state->dices[i].x = DICE_X + (i * DICE_GAP);
+        state->dices[i].y = i == 0 ? DICE_Y_T : DICE_Y;
+    }
+}
+
+void coin_set_start(uint16_t type) {
+    if(type == 1) {
+        coin_frames[0] = coin_heads_start[0];
+        coin_frames[1] = coin_heads_start[1];
+    } else {
+        coin_frames[0] = coin_tails_start[0];
+        coin_frames[1] = coin_tails_start[1];
+    }
+}
+
+void coin_set_end(uint16_t type) {
+    if(type == 1) {
+        coin_frames[MAX_COIN_FRAMES - 2] = coin_heads_end[0];
+        coin_frames[MAX_COIN_FRAMES - 1] = coin_heads_end[1];
+    } else {
+        coin_frames[MAX_COIN_FRAMES - 2] = coin_tails_end[0];
+        coin_frames[MAX_COIN_FRAMES - 1] = coin_tails_end[1];
+    }
+}
+
+bool isResultVisible(AppState state, uint8_t dice_index) {
+    return (state == ResultState || state == AnimResultState) && dice_index != 0;
+}
+
+bool isDiceNameVisible(AppState state) {
+    return state != SwipeLeftState && state != SwipeRightState;
+}
+
+bool isDiceButtonsVisible(AppState state) {
+    return isDiceNameVisible(state) && state != AnimResultState && state != ResultState &&
+           state != AnimState;
+}
+
+bool isOneDice(uint8_t dice_index) {
+    return dice_index == 0 || dice_index == 7;
+}
+
+bool isDiceSettingsDisabled(AppState state, uint8_t dice_index) {
+    return isOneDice(dice_index) || state == ResultState || state == AnimResultState ||
+           state == AnimState;
+}
+
+bool isAnimState(AppState state) {
+    return state == SwipeLeftState || state == SwipeRightState || state == AnimResultState ||
+           state == AnimState;
+}
+
+bool isMenuState(AppState state) {
+    return state == SwipeLeftState || state == SwipeRightState || state == SelectState;
+}

applications/plugins/dice2/dice_app.c

@@ -0,0 +1,333 @@
+#include <furi.h>
+#include <input/input.h>
+#include <gui/gui.h>
+#include "constants.h"
+
+const Icon* draw_dice_frame;
+
+static void update(State* const state) {
+    if(state->app_state == SwipeLeftState) {
+        for(uint8_t i = 0; i < DICE_TYPES; i++) {
+            state->dices[i].x -= SWIPE_DIST;
+            state->dices[i].y = DICE_Y;
+        }
+
+        if(state->dices[state->dice_index].x == DICE_X) {
+            state->app_state = SelectState;
+            state->dices[state->dice_index].y = DICE_Y_T;
+        }
+
+    } else if(state->app_state == SwipeRightState) {
+        for(uint8_t i = 0; i < DICE_TYPES; i++) {
+            state->dices[i].x += SWIPE_DIST;
+            state->dices[i].y = DICE_Y;
+        }
+
+        if(state->dices[state->dice_index].x == DICE_X) {
+            state->app_state = SelectState;
+            state->dices[state->dice_index].y = DICE_Y_T;
+        }
+    } else if(state->app_state == AnimState) {
+        state->anim_frame += 1;
+
+        if(state->dice_index == 0) {
+            if(state->anim_frame == 3) coin_set_start(state->roll_result); // change coin anim
+
+            if(state->anim_frame >= MAX_COIN_FRAMES) {
+                state->anim_frame = 0;
+                state->app_state = AnimResultState;
+            }
+        } else {
+            if(state->anim_frame >= MAX_DICE_FRAMES) {
+                state->anim_frame = 0;
+                state->app_state = AnimResultState;
+            }
+        }
+    } else if(state->app_state == AnimResultState) {
+        if(state->dice_index == 0) { // no extra animations for coin
+            state->anim_frame = 0;
+            state->app_state = ResultState;
+            return;
+        }
+
+        state->result_pos = result_frame_pos_y[state->anim_frame];
+        state->anim_frame += 1;
+
+        // end animation
+        if(state->result_pos == 0) {
+            state->anim_frame = 0;
+            state->app_state = ResultState;
+        }
+    }
+}
+
+static void roll(State* const state) {
+    state->roll_result = 0;
+    state->result_pos = result_frame_pos_y[0];
+
+    for(uint8_t i = 0; i < MAX_DICE_COUNT; i++) {
+        if(i < state->dice_count) {
+            state->rolled_dices[i] = (rand() % dice_types[state->dice_index].type) + 1;
+            state->roll_result += state->rolled_dices[i];
+        } else {
+            state->rolled_dices[i] = 0;
+        }
+    }
+
+    if(state->dice_index == 0) coin_set_end(state->roll_result); // change coin anim
+
+    state->app_state = AnimState;
+}
+
+static void draw_ui(const State* state, Canvas* canvas) {
+    canvas_set_font(canvas, FontSecondary);
+
+    FuriString* count = furi_string_alloc();
+    furi_string_printf(count, "%01d", state->dice_count);
+
+    // dice name
+    if(isDiceNameVisible(state->app_state)) {
+        canvas_draw_str_aligned(
+            canvas, 63, 50, AlignCenter, AlignBottom, dice_types[state->dice_index].name);
+    }
+    // dice arrow buttons
+    if(isDiceButtonsVisible(state->app_state)) {
+        if(state->dice_index > 0) canvas_draw_icon(canvas, 45, 44, &I_ui_button_left);
+        if(state->dice_index < DICE_TYPES - 1)
+            canvas_draw_icon(canvas, 78, 44, &I_ui_button_right);
+    }
+
+    // dice count settings
+    if(isDiceSettingsDisabled(state->app_state, state->dice_index))
+        canvas_draw_icon(canvas, 48, 51, &I_ui_count_1);
+    else
+        canvas_draw_icon(canvas, 48, 51, &I_ui_count);
+    canvas_draw_str_aligned(canvas, 58, 61, AlignCenter, AlignBottom, furi_string_get_cstr(count));
+
+    // buttons
+    if(isAnimState(state->app_state) == false) canvas_draw_icon(canvas, 92, 54, &I_ui_button_roll);
+
+    if(state->app_state != AnimResultState && state->app_state != ResultState) {
+        canvas_draw_icon(canvas, 0, 54, &I_ui_button_exit);
+    } else {
+        canvas_draw_icon(canvas, 0, 54, &I_ui_button_back);
+    }
+
+    furi_string_free(count);
+}
+
+static void draw_dice(const State* state, Canvas* canvas) {
+    if(isMenuState(state->app_state) == false) { // draw only selected dice
+        if(state->dice_index == 0) { // coin
+            draw_dice_frame = coin_frames[state->anim_frame];
+        } else { // dices
+            draw_dice_frame =
+                dice_frames[(state->dice_index - 1) * MAX_DICE_FRAMES + state->anim_frame];
+        }
+
+        canvas_draw_icon(
+            canvas,
+            state->dices[state->dice_index].x,
+            state->dices[state->dice_index].y,
+            draw_dice_frame);
+        return;
+    }
+
+    for(uint8_t i = 0; i < DICE_TYPES; i++) {
+        if(state->app_state == ResultState && state->dice_index == i && state->dice_index != 0)
+            continue; // draw results except coin
+        if(state->dices[i].x > 128 || state->dices[i].x < -35) continue; // outside the screen
+
+        if(i == 0) { // coin
+            draw_dice_frame = coin_frames[0];
+        } else { // dices
+            draw_dice_frame = dice_frames[(i - 1) * MAX_DICE_FRAMES];
+        }
+
+        canvas_draw_icon(canvas, state->dices[i].x, state->dices[i].y, draw_dice_frame);
+    }
+}
+
+static void draw_results(const State* state, Canvas* canvas) {
+    canvas_set_font(canvas, FontPrimary);
+
+    FuriString* sum = furi_string_alloc();
+    furi_string_printf(sum, "%01d", state->roll_result);
+
+    // ui frame
+    if(state->app_state == AnimResultState)
+        canvas_draw_icon(canvas, RESULT_BORDER_X, state->result_pos, &I_ui_result_border);
+    else
+        canvas_draw_icon(
+            canvas, RESULT_BORDER_X, result_frame_pos_y[MAX_DICE_FRAMES - 1], &I_ui_result_border);
+
+    // result text
+    canvas_draw_str_aligned(
+        canvas,
+        64,
+        state->result_pos + RESULT_OFFSET,
+        AlignCenter,
+        AlignCenter,
+        furi_string_get_cstr(sum));
+
+    if(state->app_state == ResultState && isOneDice(state->dice_index) == false) {
+        canvas_set_font(canvas, FontSecondary);
+
+        FuriString* dices = furi_string_alloc();
+        for(uint8_t i = 0; i < state->dice_count; i++) {
+            furi_string_cat_printf(dices, "%01d", state->rolled_dices[i]);
+
+            if(i != state->dice_count - 1) furi_string_cat_printf(dices, "%s", ", ");
+        }
+
+        canvas_draw_str_aligned(
+            canvas, 63, 37, AlignCenter, AlignCenter, furi_string_get_cstr(dices));
+        furi_string_free(dices);
+    }
+
+    furi_string_free(sum);
+}
+
+static void draw_callback(Canvas* canvas, void* ctx) {
+    const State* state = acquire_mutex((ValueMutex*)ctx, 25);
+    if(state == NULL) {
+        return;
+    }
+
+    canvas_clear(canvas);
+
+    draw_ui(state, canvas);
+
+    if(isResultVisible(state->app_state, state->dice_index)) {
+        draw_results(state, canvas);
+    } else {
+        draw_dice(state, canvas);
+    }
+
+    release_mutex((ValueMutex*)ctx, state);
+}
+
+static void input_callback(InputEvent* input_event, FuriMessageQueue* event_queue) {
+    furi_assert(event_queue);
+
+    AppEvent event = {.type = EventTypeKey, .input = *input_event};
+    furi_message_queue_put(event_queue, &event, FuriWaitForever);
+}
+
+static void timer_callback(FuriMessageQueue* event_queue) {
+    furi_assert(event_queue);
+
+    AppEvent event = {.type = EventTypeTick};
+    furi_message_queue_put(event_queue, &event, 0);
+}
+
+int32_t dice_dnd_app(void* p) {
+    UNUSED(p);
+
+    FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(AppEvent));
+
+    FURI_LOG_E(TAG, ">>> Started...\r\n");
+    State* state = malloc(sizeof(State));
+    init(state);
+
+    ValueMutex state_mutex;
+    if(!init_mutex(&state_mutex, state, sizeof(State))) {
+        FURI_LOG_E(TAG, "cannot create mutex\r\n");
+        free(state);
+        return 255;
+    }
+
+    // Set callbacks
+    ViewPort* view_port = view_port_alloc();
+    view_port_draw_callback_set(view_port, draw_callback, &state_mutex);
+    view_port_input_callback_set(view_port, input_callback, event_queue);
+
+    FuriTimer* timer = furi_timer_alloc(timer_callback, FuriTimerTypePeriodic, event_queue);
+    furi_timer_start(timer, furi_kernel_get_tick_frequency() * 0.2);
+
+    // Create GUI, register view port
+    Gui* gui = furi_record_open(RECORD_GUI);
+    gui_add_view_port(gui, view_port, GuiLayerFullscreen);
+
+    AppEvent event;
+    for(bool processing = true; processing;) {
+        FuriStatus event_status = furi_message_queue_get(event_queue, &event, 100);
+        State* state = (State*)acquire_mutex_block(&state_mutex);
+
+        if(event_status == FuriStatusOk) {
+            // timer evetn
+            if(event.type == EventTypeTick) {
+                update(state);
+            }
+            // button events
+            if(event.type == EventTypeKey) {
+                if(event.input.type == InputTypePress) {
+                    // dice type
+                    if(isDiceButtonsVisible(state->app_state)) {
+                        if(event.input.key == InputKeyRight) {
+                            if(state->dice_index < DICE_TYPES - 1) {
+                                state->dice_index += 1;
+                                state->app_state = SwipeLeftState;
+                            }
+                        } else if(event.input.key == InputKeyLeft) {
+                            if(state->dice_index > 0) {
+                                state->dice_index -= 1;
+                                state->app_state = SwipeRightState;
+                            }
+                        }
+
+                        if(isOneDice(state->dice_index)) state->dice_count = 1;
+                    }
+                    // dice count
+                    if(isDiceSettingsDisabled(state->app_state, state->dice_index) == false &&
+                       isAnimState(state->app_state) == false) {
+                        if(event.input.key == InputKeyUp) {
+                            if(state->dice_index != 0) {
+                                state->dice_count += 1;
+                                if(state->dice_count > MAX_DICE_COUNT) {
+                                    state->dice_count = MAX_DICE_COUNT;
+                                }
+                            }
+                        } else if(event.input.key == InputKeyDown) {
+                            state->dice_count -= 1;
+                            if(state->dice_count < 1) {
+                                state->dice_count = 1;
+                            }
+                        }
+                    }
+                    // roll
+                    if(event.input.key == InputKeyOk && isAnimState(state->app_state) == false) {
+                        roll(state);
+                    }
+                    // back to dice select state or quit from app
+                    if(event.input.key == InputKeyBack) {
+                        if(state->app_state == ResultState ||
+                           state->app_state == AnimResultState) {
+                            state->anim_frame = 0;
+                            state->app_state = SelectState;
+                        } else {
+                            processing = false;
+                        }
+                    }
+                }
+            }
+        } else {
+            FURI_LOG_D(TAG, "osMessageQueue: event timeout");
+        }
+
+        view_port_update(view_port);
+        release_mutex(&state_mutex, state);
+    }
+
+    // Clear
+    free(state);
+    furi_timer_free(timer);
+    furi_message_queue_free(event_queue);
+    view_port_enabled_set(view_port, false);
+    gui_remove_view_port(gui, view_port);
+    furi_record_close(RECORD_GUI);
+    view_port_free(view_port);
+    delete_mutex(&state_mutex);
+
+    return 0;
+}

applications/plugins/dtmf_dolphin/LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
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+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
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+
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applications/plugins/dtmf_dolphin/README.md

@@ -0,0 +1,16 @@
+![Image](assets/dialer.jpg)
+
+## DTMF Dolphin
+
+DTMF (Dual-Tone Multi-Frequency) dialer, Bluebox, and Redbox.
+
+Now in a release-ready state for both Dialer, Bluebox, and Redbox (US/UK) functionality!
+
+Please note that using the current tone output method, the 2600 tone is scaled about 33 Hz higher than it should be. This is a limitation of the current sample rate.
+
+### Educational Links:
+
+* http://www.phrack.org/issues/25/7.html#article
+* https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling
+* https://en.wikipedia.org/wiki/Blue_box
+* https://en.wikipedia.org/wiki/Red_box_(phreaking)

applications/plugins/dtmf_dolphin/application.fam

@@ -0,0 +1,16 @@
+App(
+    appid="DTMF_Dolphin",
+    name="DTMF Dolphin",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="dtmf_dolphin_app",
+    cdefines=["DTMF_DOLPHIN"],
+    requires=[
+        "storage",
+        "gui",
+        "dialogs",
+    ],
+    fap_icon="phone.png",
+    stack_size=8 * 1024,
+    order=20,
+    fap_category="Tools",
+)

applications/plugins/dtmf_dolphin/dtmf_dolphin.c

@@ -0,0 +1,89 @@
+#include "dtmf_dolphin_i.h"
+
+#include <furi.h>
+#include <furi_hal.h>
+
+static bool dtmf_dolphin_app_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+    return scene_manager_handle_custom_event(app->scene_manager, event);
+}
+
+static bool dtmf_dolphin_app_back_event_callback(void* context) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+    return scene_manager_handle_back_event(app->scene_manager);
+}
+
+static void dtmf_dolphin_app_tick_event_callback(void* context) {
+    furi_assert(context);
+    DTMFDolphinApp* app = context;
+
+    scene_manager_handle_tick_event(app->scene_manager);
+}
+
+static DTMFDolphinApp* app_alloc() {
+    DTMFDolphinApp* app = malloc(sizeof(DTMFDolphinApp));
+
+    app->gui = furi_record_open(RECORD_GUI);
+    app->view_dispatcher = view_dispatcher_alloc();
+    app->scene_manager = scene_manager_alloc(&dtmf_dolphin_scene_handlers, app);
+    view_dispatcher_enable_queue(app->view_dispatcher);
+    view_dispatcher_set_event_callback_context(app->view_dispatcher, app);
+
+    view_dispatcher_set_custom_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_back_event_callback);
+    view_dispatcher_set_tick_event_callback(
+        app->view_dispatcher, dtmf_dolphin_app_tick_event_callback, 100);
+
+    view_dispatcher_attach_to_gui(app->view_dispatcher, app->gui, ViewDispatcherTypeFullscreen);
+
+    app->main_menu_list = variable_item_list_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        DTMFDolphinViewMainMenu,
+        variable_item_list_get_view(app->main_menu_list));
+
+    app->dtmf_dolphin_dialer = dtmf_dolphin_dialer_alloc();
+    view_dispatcher_add_view(
+        app->view_dispatcher,
+        DTMFDolphinViewDialer,
+        dtmf_dolphin_dialer_get_view(app->dtmf_dolphin_dialer));
+
+    app->notification = furi_record_open(RECORD_NOTIFICATION);
+    notification_message(app->notification, &sequence_display_backlight_enforce_on);
+
+    scene_manager_next_scene(app->scene_manager, DTMFDolphinSceneStart);
+
+    return app;
+}
+
+static void app_free(DTMFDolphinApp* app) {
+    furi_assert(app);
+    view_dispatcher_remove_view(app->view_dispatcher, DTMFDolphinViewMainMenu);
+    view_dispatcher_remove_view(app->view_dispatcher, DTMFDolphinViewDialer);
+    variable_item_list_free(app->main_menu_list);
+
+    dtmf_dolphin_dialer_free(app->dtmf_dolphin_dialer);
+
+    view_dispatcher_free(app->view_dispatcher);
+    scene_manager_free(app->scene_manager);
+
+    notification_message(app->notification, &sequence_display_backlight_enforce_auto);
+
+    furi_record_close(RECORD_GUI);
+    furi_record_close(RECORD_NOTIFICATION);
+    free(app);
+}
+
+int32_t dtmf_dolphin_app(void* p) {
+    UNUSED(p);
+    DTMFDolphinApp* app = app_alloc();
+
+    view_dispatcher_run(app->view_dispatcher);
+
+    app_free(app);
+    return 0;
+}

applications/plugins/dtmf_dolphin/dtmf_dolphin_audio.c

@@ -0,0 +1,265 @@
+#include "dtmf_dolphin_audio.h"
+
+DTMFDolphinAudio* current_player;
+
+static void dtmf_dolphin_audio_dma_isr(void* ctx) {
+    FuriMessageQueue* event_queue = ctx;
+
+    if(LL_DMA_IsActiveFlag_HT1(DMA1)) {
+        LL_DMA_ClearFlag_HT1(DMA1);
+
+        DTMFDolphinCustomEvent event = {.type = DTMFDolphinEventDMAHalfTransfer};
+        furi_message_queue_put(event_queue, &event, 0);
+    }
+
+    if(LL_DMA_IsActiveFlag_TC1(DMA1)) {
+        LL_DMA_ClearFlag_TC1(DMA1);
+
+        DTMFDolphinCustomEvent event = {.type = DTMFDolphinEventDMAFullTransfer};
+        furi_message_queue_put(event_queue, &event, 0);
+    }
+}
+
+void dtmf_dolphin_audio_clear_samples(DTMFDolphinAudio* player) {
+    for(size_t i = 0; i < player->buffer_length; i++) {
+        player->sample_buffer[i] = 0;
+    }
+}
+
+DTMFDolphinOsc* dtmf_dolphin_osc_alloc() {
+    DTMFDolphinOsc* osc = malloc(sizeof(DTMFDolphinOsc));
+    osc->cached_freq = 0;
+    osc->offset = 0;
+    osc->period = 0;
+    osc->lookup_table = NULL;
+    return osc;
+}
+
+DTMFDolphinPulseFilter* dtmf_dolphin_pulse_filter_alloc() {
+    DTMFDolphinPulseFilter* pf = malloc(sizeof(DTMFDolphinPulseFilter));
+    pf->duration = 0;
+    pf->period = 0;
+    pf->offset = 0;
+    pf->lookup_table = NULL;
+    return pf;
+}
+
+DTMFDolphinAudio* dtmf_dolphin_audio_alloc() {
+    DTMFDolphinAudio* player = malloc(sizeof(DTMFDolphinAudio));
+    player->buffer_length = SAMPLE_BUFFER_LENGTH;
+    player->half_buffer_length = SAMPLE_BUFFER_LENGTH / 2;
+    player->sample_buffer = malloc(sizeof(uint16_t) * player->buffer_length);
+    player->osc1 = dtmf_dolphin_osc_alloc();
+    player->osc2 = dtmf_dolphin_osc_alloc();
+    player->volume = 1.0f;
+    player->queue = furi_message_queue_alloc(10, sizeof(DTMFDolphinCustomEvent));
+    player->filter = dtmf_dolphin_pulse_filter_alloc();
+    player->playing = false;
+    dtmf_dolphin_audio_clear_samples(player);
+
+    return player;
+}
+
+size_t calc_waveform_period(float freq) {
+    if(!freq) {
+        return 0;
+    }
+    // DMA Rate calculation, thanks to Dr_Zlo
+    float dma_rate = CPU_CLOCK_FREQ / 2 / DTMF_DOLPHIN_HAL_DMA_PRESCALER /
+                     (DTMF_DOLPHIN_HAL_DMA_AUTORELOAD + 1);
+
+    // Using a constant scaling modifier, which likely represents
+    // the combined system overhead and isr latency.
+    return (uint16_t)dma_rate * 2 / freq * 0.801923;
+}
+
+void osc_generate_lookup_table(DTMFDolphinOsc* osc, float freq) {
+    if(osc->lookup_table != NULL) {
+        free(osc->lookup_table);
+    }
+    osc->offset = 0;
+    osc->cached_freq = freq;
+    osc->period = calc_waveform_period(freq);
+    if(!osc->period) {
+        osc->lookup_table = NULL;
+        return;
+    }
+    osc->lookup_table = malloc(sizeof(float) * osc->period);
+
+    for(size_t i = 0; i < osc->period; i++) {
+        osc->lookup_table[i] = sin(i * PERIOD_2_PI / osc->period) + 1;
+    }
+}
+
+void filter_generate_lookup_table(
+    DTMFDolphinPulseFilter* pf,
+    uint16_t pulses,
+    uint16_t pulse_ms,
+    uint16_t gap_ms) {
+    if(pf->lookup_table != NULL) {
+        free(pf->lookup_table);
+    }
+    pf->offset = 0;
+
+    uint16_t gap_period = calc_waveform_period(1000 / (float)gap_ms);
+    uint16_t pulse_period = calc_waveform_period(1000 / (float)pulse_ms);
+    pf->period = pulse_period + gap_period;
+
+    if(!pf->period) {
+        pf->lookup_table = NULL;
+        return;
+    }
+    pf->duration = pf->period * pulses;
+    pf->lookup_table = malloc(sizeof(bool) * pf->duration);
+
+    for(size_t i = 0; i < pf->duration; i++) {
+        pf->lookup_table[i] = i % pf->period < pulse_period;
+    }
+}
+
+float sample_frame(DTMFDolphinOsc* osc) {
+    float frame = 0.0;
+
+    if(osc->period) {
+        frame = osc->lookup_table[osc->offset];
+        osc->offset = (osc->offset + 1) % osc->period;
+    }
+
+    return frame;
+}
+
+bool sample_filter(DTMFDolphinPulseFilter* pf) {
+    bool frame = true;
+
+    if(pf->duration) {
+        if(pf->offset < pf->duration) {
+            frame = pf->lookup_table[pf->offset];
+            pf->offset = pf->offset + 1;
+        } else {
+            frame = false;
+        }
+    }
+
+    return frame;
+}
+
+void dtmf_dolphin_osc_free(DTMFDolphinOsc* osc) {
+    if(osc->lookup_table != NULL) {
+        free(osc->lookup_table);
+    }
+    free(osc);
+}
+
+void dtmf_dolphin_filter_free(DTMFDolphinPulseFilter* pf) {
+    if(pf->lookup_table != NULL) {
+        free(pf->lookup_table);
+    }
+    free(pf);
+}
+
+void dtmf_dolphin_audio_free(DTMFDolphinAudio* player) {
+    furi_message_queue_free(player->queue);
+    dtmf_dolphin_osc_free(player->osc1);
+    dtmf_dolphin_osc_free(player->osc2);
+    dtmf_dolphin_filter_free(player->filter);
+    free(player->sample_buffer);
+    free(player);
+    current_player = NULL;
+}
+
+bool generate_waveform(DTMFDolphinAudio* player, uint16_t buffer_index) {
+    uint16_t* sample_buffer_start = &player->sample_buffer[buffer_index];
+
+    for(size_t i = 0; i < player->half_buffer_length; i++) {
+        float data = 0;
+        if(player->osc2->period) {
+            data = (sample_frame(player->osc1) / 2) + (sample_frame(player->osc2) / 2);
+        } else {
+            data = (sample_frame(player->osc1));
+        }
+        data *= sample_filter(player->filter) ? player->volume : 0.0;
+        data *= UINT8_MAX / 2; // scale -128..127
+        data += UINT8_MAX / 2; // to unsigned
+
+        if(data < 0) {
+            data = 0;
+        }
+
+        if(data > 255) {
+            data = 255;
+        }
+
+        sample_buffer_start[i] = data;
+    }
+
+    return true;
+}
+
+bool dtmf_dolphin_audio_play_tones(
+    float freq1,
+    float freq2,
+    uint16_t pulses,
+    uint16_t pulse_ms,
+    uint16_t gap_ms) {
+    if(current_player != NULL && current_player->playing) {
+        // Cannot start playing while still playing something else
+        return false;
+    }
+    current_player = dtmf_dolphin_audio_alloc();
+
+    osc_generate_lookup_table(current_player->osc1, freq1);
+    osc_generate_lookup_table(current_player->osc2, freq2);
+    filter_generate_lookup_table(current_player->filter, pulses, pulse_ms, gap_ms);
+
+    generate_waveform(current_player, 0);
+    generate_waveform(current_player, current_player->half_buffer_length);
+
+    dtmf_dolphin_speaker_init();
+    dtmf_dolphin_dma_init((uint32_t)current_player->sample_buffer, current_player->buffer_length);
+
+    furi_hal_interrupt_set_isr(
+        FuriHalInterruptIdDma1Ch1, dtmf_dolphin_audio_dma_isr, current_player->queue);
+
+    dtmf_dolphin_dma_start();
+    dtmf_dolphin_speaker_start();
+    current_player->playing = true;
+    return true;
+}
+
+bool dtmf_dolphin_audio_stop_tones() {
+    if(current_player != NULL && !current_player->playing) {
+        // Can't stop a player that isn't playing.
+        return false;
+    }
+    while(current_player->filter->offset > 0 &&
+          current_player->filter->offset < current_player->filter->duration) {
+        // run remaining ticks if needed to complete filter sequence
+        dtmf_dolphin_audio_handle_tick();
+    }
+    dtmf_dolphin_speaker_stop();
+    dtmf_dolphin_dma_stop();
+
+    furi_hal_interrupt_set_isr(FuriHalInterruptIdDma1Ch1, NULL, NULL);
+
+    dtmf_dolphin_audio_free(current_player);
+
+    return true;
+}
+
+bool dtmf_dolphin_audio_handle_tick() {
+    bool handled = false;
+
+    if(current_player) {
+        DTMFDolphinCustomEvent event;
+        if(furi_message_queue_get(current_player->queue, &event, 250) == FuriStatusOk) {
+            if(event.type == DTMFDolphinEventDMAHalfTransfer) {
+                generate_waveform(current_player, 0);
+                handled = true;
+            } else if(event.type == DTMFDolphinEventDMAFullTransfer) {
+                generate_waveform(current_player, current_player->half_buffer_length);
+                handled = true;
+            }
+        }
+    }
+    return handled;
+}

applications/plugins/dtmf_dolphin/dtmf_dolphin_audio.h

@@ -0,0 +1,54 @@
+#pragma once
+// #include "dtmf_dolphin_i.h"
+#include "dtmf_dolphin_event.h"
+#include "dtmf_dolphin_hal.h"
+
+#define SAMPLE_BUFFER_LENGTH 8192
+#define PERIOD_2_PI 6.2832
+#define CPU_CLOCK_FREQ 64000000
+
+typedef struct {
+    float cached_freq;
+    size_t period;
+    float* lookup_table;
+    uint16_t offset;
+} DTMFDolphinOsc;
+
+typedef struct {
+    float duration;
+    size_t period;
+    bool* lookup_table;
+    uint16_t offset;
+} DTMFDolphinPulseFilter;
+
+typedef struct {
+    size_t buffer_length;
+    size_t half_buffer_length;
+    uint8_t* buffer_buffer;
+    uint16_t* sample_buffer;
+    float volume;
+    FuriMessageQueue* queue;
+    DTMFDolphinOsc* osc1;
+    DTMFDolphinOsc* osc2;
+    DTMFDolphinPulseFilter* filter;
+    bool playing;
+} DTMFDolphinAudio;
+
+DTMFDolphinOsc* dtmf_dolphin_osc_alloc();
+
+DTMFDolphinAudio* dtmf_dolphin_audio_alloc();
+
+void dtmf_dolphin_audio_free(DTMFDolphinAudio* player);
+
+void dtmf_dolphin_osc_free(DTMFDolphinOsc* osc);
+
+bool dtmf_dolphin_audio_play_tones(
+    float freq1,
+    float freq2,
+    uint16_t pulses,
+    uint16_t pulse_ms,
+    uint16_t gap_ms);
+
+bool dtmf_dolphin_audio_stop_tones();
+
+bool dtmf_dolphin_audio_handle_tick();

applications/plugins/dtmf_dolphin/dtmf_dolphin_data.c

@@ -0,0 +1,220 @@
+#include "dtmf_dolphin_data.h"
+
+typedef struct {
+    const uint8_t row;
+    const uint8_t col;
+    const uint8_t span;
+} DTMFDolphinTonePos;
+
+typedef struct {
+    const char* name;
+    const float frequency_1;
+    const float frequency_2;
+    const DTMFDolphinTonePos pos;
+    const uint16_t pulses; // for Redbox
+    const uint16_t pulse_ms; // for Redbox
+    const uint16_t gap_duration; // for Redbox
+} DTMFDolphinTones;
+
+typedef struct {
+    const char* name;
+    DTMFDolphinToneSection block;
+    uint8_t tone_count;
+    DTMFDolphinTones tones[DTMF_DOLPHIN_MAX_TONE_COUNT];
+} DTMFDolphinSceneData;
+
+DTMFDolphinSceneData DTMFDolphinSceneDataDialer = {
+    .name = "Dialer",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_DIALER,
+    .tone_count = 16,
+    .tones = {
+        {"1", 697.0, 1209.0, {0, 0, 1}, 0, 0, 0},
+        {"2", 697.0, 1336.0, {0, 1, 1}, 0, 0, 0},
+        {"3", 697.0, 1477.0, {0, 2, 1}, 0, 0, 0},
+        {"A", 697.0, 1633.0, {0, 3, 1}, 0, 0, 0},
+        {"4", 770.0, 1209.0, {1, 0, 1}, 0, 0, 0},
+        {"5", 770.0, 1336.0, {1, 1, 1}, 0, 0, 0},
+        {"6", 770.0, 1477.0, {1, 2, 1}, 0, 0, 0},
+        {"B", 770.0, 1633.0, {1, 3, 1}, 0, 0, 0},
+        {"7", 852.0, 1209.0, {2, 0, 1}, 0, 0, 0},
+        {"8", 852.0, 1336.0, {2, 1, 1}, 0, 0, 0},
+        {"9", 852.0, 1477.0, {2, 2, 1}, 0, 0, 0},
+        {"C", 852.0, 1633.0, {2, 3, 1}, 0, 0, 0},
+        {"*", 941.0, 1209.0, {3, 0, 1}, 0, 0, 0},
+        {"0", 941.0, 1336.0, {3, 1, 1}, 0, 0, 0},
+        {"#", 941.0, 1477.0, {3, 2, 1}, 0, 0, 0},
+        {"D", 941.0, 1633.0, {3, 3, 1}, 0, 0, 0},
+    }};
+
+DTMFDolphinSceneData DTMFDolphinSceneDataBluebox = {
+    .name = "Bluebox",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_BLUEBOX,
+    .tone_count = 13,
+    .tones = {
+        {"1", 700.0, 900.0, {0, 0, 1}, 0, 0, 0},
+        {"2", 700.0, 1100.0, {0, 1, 1}, 0, 0, 0},
+        {"3", 900.0, 1100.0, {0, 2, 1}, 0, 0, 0},
+        {"4", 700.0, 1300.0, {1, 0, 1}, 0, 0, 0},
+        {"5", 900.0, 1300.0, {1, 1, 1}, 0, 0, 0},
+        {"6", 1100.0, 1300.0, {1, 2, 1}, 0, 0, 0},
+        {"7", 700.0, 1500.0, {2, 0, 1}, 0, 0, 0},
+        {"8", 900.0, 1500.0, {2, 1, 1}, 0, 0, 0},
+        {"9", 1100.0, 1500.0, {2, 2, 1}, 0, 0, 0},
+        {"0", 1300.0, 1500.0, {3, 1, 1}, 0, 0, 0},
+        {"KP", 1100.0, 1700.0, {0, 3, 2}, 0, 0, 0},
+        {"ST", 1500.0, 1700.0, {1, 3, 2}, 0, 0, 0},
+        {"2600", 2600.0, 0.0, {3, 2, 3}, 0, 0, 0},
+    }};
+
+DTMFDolphinSceneData DTMFDolphinSceneDataRedboxUS = {
+    .name = "Redbox (US)",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_REDBOX_US,
+    .tone_count = 4,
+    .tones = {
+        {"Nickel", 1700.0, 2200.0, {0, 0, 5}, 1, 66, 0},
+        {"Dime", 1700.0, 2200.0, {1, 0, 5}, 2, 66, 66},
+        {"Quarter", 1700.0, 2200.0, {2, 0, 5}, 5, 33, 33},
+        {"Dollar", 1700.0, 2200.0, {3, 0, 5}, 1, 650, 0},
+    }};
+
+DTMFDolphinSceneData DTMFDolphinSceneDataRedboxCA = {
+    .name = "Redbox (CA)",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_REDBOX_CA,
+    .tone_count = 3,
+    .tones = {
+        {"Nickel", 2200.0, 0.0, {0, 0, 5}, 1, 66, 0},
+        {"Dime", 2200.0, 0.0, {1, 0, 5}, 2, 66, 66},
+        {"Quarter", 2200.0, 0.0, {2, 0, 5}, 5, 33, 33},
+    }};
+
+DTMFDolphinSceneData DTMFDolphinSceneDataRedboxUK = {
+    .name = "Redbox (UK)",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_REDBOX_UK,
+    .tone_count = 2,
+    .tones = {
+        {"10p", 1000.0, 0.0, {0, 0, 5}, 1, 200, 0},
+        {"50p", 1000.0, 0.0, {1, 0, 5}, 1, 350, 0},
+    }};
+
+DTMFDolphinSceneData DTMFDolphinSceneDataMisc = {
+    .name = "Misc",
+    .block = DTMF_DOLPHIN_TONE_BLOCK_MISC,
+    .tone_count = 3,
+    .tones = {
+        {"CCITT 11", 700.0, 1700.0, {0, 0, 5}, 0, 0, 0},
+        {"CCITT 12", 900.0, 1700.0, {1, 0, 5}, 0, 0, 0},
+        {"CCITT KP2", 1300.0, 1700.0, {2, 0, 5}, 0, 0, 0},
+    }};
+
+DTMFDolphinToneSection current_section;
+DTMFDolphinSceneData* current_scene_data;
+
+void dtmf_dolphin_data_set_current_section(DTMFDolphinToneSection section) {
+    current_section = section;
+
+    switch(current_section) {
+    case DTMF_DOLPHIN_TONE_BLOCK_BLUEBOX:
+        current_scene_data = &DTMFDolphinSceneDataBluebox;
+        break;
+    case DTMF_DOLPHIN_TONE_BLOCK_REDBOX_US:
+        current_scene_data = &DTMFDolphinSceneDataRedboxUS;
+        break;
+    case DTMF_DOLPHIN_TONE_BLOCK_REDBOX_CA:
+        current_scene_data = &DTMFDolphinSceneDataRedboxCA;
+        break;
+    case DTMF_DOLPHIN_TONE_BLOCK_REDBOX_UK:
+        current_scene_data = &DTMFDolphinSceneDataRedboxUK;
+        break;
+    case DTMF_DOLPHIN_TONE_BLOCK_MISC:
+        current_scene_data = &DTMFDolphinSceneDataMisc;
+        break;
+    default: // DTMF_DOLPHIN_TONE_BLOCK_DIALER:
+        current_scene_data = &DTMFDolphinSceneDataDialer;
+        break;
+    }
+}
+
+DTMFDolphinToneSection dtmf_dolphin_data_get_current_section() {
+    return current_section;
+}
+
+DTMFDolphinSceneData* dtmf_dolphin_data_get_current_scene_data() {
+    return current_scene_data;
+}
+
+bool dtmf_dolphin_data_get_tone_frequencies(float* freq1, float* freq2, uint8_t row, uint8_t col) {
+    for(size_t i = 0; i < current_scene_data->tone_count; i++) {
+        DTMFDolphinTones tones = current_scene_data->tones[i];
+        if(tones.pos.row == row && tones.pos.col == col) {
+            freq1[0] = tones.frequency_1;
+            freq2[0] = tones.frequency_2;
+            return true;
+        }
+    }
+    return false;
+}
+
+bool dtmf_dolphin_data_get_filter_data(
+    uint16_t* pulses,
+    uint16_t* pulse_ms,
+    uint16_t* gap_ms,
+    uint8_t row,
+    uint8_t col) {
+    for(size_t i = 0; i < current_scene_data->tone_count; i++) {
+        DTMFDolphinTones tones = current_scene_data->tones[i];
+        if(tones.pos.row == row && tones.pos.col == col) {
+            pulses[0] = tones.pulses;
+            pulse_ms[0] = tones.pulse_ms;
+            gap_ms[0] = tones.gap_duration;
+            return true;
+        }
+    }
+    return false;
+}
+
+const char* dtmf_dolphin_data_get_tone_name(uint8_t row, uint8_t col) {
+    for(size_t i = 0; i < current_scene_data->tone_count; i++) {
+        DTMFDolphinTones tones = current_scene_data->tones[i];
+        if(tones.pos.row == row && tones.pos.col == col) {
+            return tones.name;
+        }
+    }
+    return NULL;
+}
+
+const char* dtmf_dolphin_data_get_current_section_name() {
+    if(current_scene_data) {
+        return current_scene_data->name;
+    }
+    return NULL;
+}
+
+void dtmf_dolphin_tone_get_max_pos(uint8_t* max_rows, uint8_t* max_cols, uint8_t* max_span) {
+    max_rows[0] = 0;
+    max_cols[0] = 0;
+    max_span[0] = 0;
+    uint8_t tmp_rowspan[5] = {0, 0, 0, 0, 0};
+    for(size_t i = 0; i < current_scene_data->tone_count; i++) {
+        DTMFDolphinTones tones = current_scene_data->tones[i];
+        if(tones.pos.row > max_rows[0]) {
+            max_rows[0] = tones.pos.row;
+        }
+        if(tones.pos.col > max_cols[0]) {
+            max_cols[0] = tones.pos.col;
+        }
+        tmp_rowspan[tones.pos.row] += tones.pos.span;
+        if(tmp_rowspan[tones.pos.row] > max_span[0]) max_span[0] = tmp_rowspan[tones.pos.row];
+    }
+    max_rows[0]++;
+    max_cols[0]++;
+}
+
+uint8_t dtmf_dolphin_get_tone_span(uint8_t row, uint8_t col) {
+    for(size_t i = 0; i < current_scene_data->tone_count; i++) {
+        DTMFDolphinTones tones = current_scene_data->tones[i];
+        if(tones.pos.row == row && tones.pos.col == col) {
+            return tones.pos.span;
+        }
+    }
+    return 0;
+}

applications/plugins/dtmf_dolphin/dtmf_dolphin_data.h

@@ -0,0 +1,36 @@
+#pragma once
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#define DTMF_DOLPHIN_MAX_TONE_COUNT 16
+
+typedef enum {
+    DTMF_DOLPHIN_TONE_BLOCK_DIALER,
+    DTMF_DOLPHIN_TONE_BLOCK_BLUEBOX,
+    DTMF_DOLPHIN_TONE_BLOCK_REDBOX_US,
+    DTMF_DOLPHIN_TONE_BLOCK_REDBOX_UK,
+    DTMF_DOLPHIN_TONE_BLOCK_REDBOX_CA,
+    DTMF_DOLPHIN_TONE_BLOCK_MISC,
+} DTMFDolphinToneSection;
+
+void dtmf_dolphin_data_set_current_section(DTMFDolphinToneSection section);
+
+DTMFDolphinToneSection dtmf_dolphin_data_get_current_section();
+
+bool dtmf_dolphin_data_get_tone_frequencies(float* freq1, float* freq2, uint8_t row, uint8_t col);
+
+bool dtmf_dolphin_data_get_filter_data(
+    uint16_t* pulses,
+    uint16_t* pulse_ms,
+    uint16_t* gap_ms,
+    uint8_t row,
+    uint8_t col);
+
+const char* dtmf_dolphin_data_get_tone_name(uint8_t row, uint8_t col);
+
+const char* dtmf_dolphin_data_get_current_section_name();
+
+void dtmf_dolphin_tone_get_max_pos(uint8_t* max_rows, uint8_t* max_cols, uint8_t* max_span);
+
+uint8_t dtmf_dolphin_get_tone_span(uint8_t row, uint8_t col);

applications/plugins/dtmf_dolphin/dtmf_dolphin_event.h

@@ -0,0 +1,21 @@
+#pragma once
+
+typedef enum {
+    DTMFDolphinEventVolumeUp = 0,
+    DTMFDolphinEventVolumeDown,
+    DTMFDolphinDialerOkCB,
+    DTMFDolphinEventStartDialer,
+    DTMFDolphinEventStartBluebox,
+    DTMFDolphinEventStartRedboxUS,
+    DTMFDolphinEventStartRedboxUK,
+    DTMFDolphinEventStartRedboxCA,
+    DTMFDolphinEventStartMisc,
+    DTMFDolphinEventPlayTones,
+    DTMFDolphinEventStopTones,
+    DTMFDolphinEventDMAHalfTransfer,
+    DTMFDolphinEventDMAFullTransfer,
+} DTMFDolphinEvent;
+
+typedef struct {
+    DTMFDolphinEvent type;
+} DTMFDolphinCustomEvent;

applications/plugins/dtmf_dolphin/dtmf_dolphin_hal.c

@@ -0,0 +1,52 @@
+#include "dtmf_dolphin_hal.h"
+
+void dtmf_dolphin_speaker_init() {
+    LL_TIM_InitTypeDef TIM_InitStruct = {0};
+    TIM_InitStruct.Prescaler = DTMF_DOLPHIN_HAL_DMA_PRESCALER;
+    TIM_InitStruct.Autoreload = DTMF_DOLPHIN_HAL_DMA_AUTORELOAD;
+    LL_TIM_Init(FURI_HAL_SPEAKER_TIMER, &TIM_InitStruct);
+
+    LL_TIM_OC_InitTypeDef TIM_OC_InitStruct = {0};
+    TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_PWM1;
+    TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_ENABLE;
+    TIM_OC_InitStruct.CompareValue = 127;
+    LL_TIM_OC_Init(FURI_HAL_SPEAKER_TIMER, FURI_HAL_SPEAKER_CHANNEL, &TIM_OC_InitStruct);
+}
+
+void dtmf_dolphin_speaker_start() {
+    LL_TIM_EnableAllOutputs(FURI_HAL_SPEAKER_TIMER);
+    LL_TIM_EnableCounter(FURI_HAL_SPEAKER_TIMER);
+}
+
+void dtmf_dolphin_speaker_stop() {
+    LL_TIM_DisableAllOutputs(FURI_HAL_SPEAKER_TIMER);
+    LL_TIM_DisableCounter(FURI_HAL_SPEAKER_TIMER);
+}
+
+void dtmf_dolphin_dma_init(uint32_t address, size_t size) {
+    uint32_t dma_dst = (uint32_t) & (FURI_HAL_SPEAKER_TIMER->CCR1);
+
+    LL_DMA_ConfigAddresses(DMA_INSTANCE, address, dma_dst, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
+    LL_DMA_SetDataLength(DMA_INSTANCE, size);
+
+    LL_DMA_SetPeriphRequest(DMA_INSTANCE, LL_DMAMUX_REQ_TIM16_UP);
+    LL_DMA_SetDataTransferDirection(DMA_INSTANCE, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
+    LL_DMA_SetChannelPriorityLevel(DMA_INSTANCE, LL_DMA_PRIORITY_VERYHIGH);
+    LL_DMA_SetMode(DMA_INSTANCE, LL_DMA_MODE_CIRCULAR);
+    LL_DMA_SetPeriphIncMode(DMA_INSTANCE, LL_DMA_PERIPH_NOINCREMENT);
+    LL_DMA_SetMemoryIncMode(DMA_INSTANCE, LL_DMA_MEMORY_INCREMENT);
+    LL_DMA_SetPeriphSize(DMA_INSTANCE, LL_DMA_PDATAALIGN_HALFWORD);
+    LL_DMA_SetMemorySize(DMA_INSTANCE, LL_DMA_MDATAALIGN_HALFWORD);
+
+    LL_DMA_EnableIT_TC(DMA_INSTANCE);
+    LL_DMA_EnableIT_HT(DMA_INSTANCE);
+}
+
+void dtmf_dolphin_dma_start() {
+    LL_DMA_EnableChannel(DMA_INSTANCE);
+    LL_TIM_EnableDMAReq_UPDATE(FURI_HAL_SPEAKER_TIMER);
+}
+
+void dtmf_dolphin_dma_stop() {
+    LL_DMA_DisableChannel(DMA_INSTANCE);
+}

applications/plugins/dtmf_dolphin/dtmf_dolphin_hal.h

@@ -0,0 +1,33 @@
+#pragma once
+#include <furi.h>
+#include <furi_hal.h>
+#include <stm32wb55xx.h>
+#include <stm32wbxx_ll_tim.h>
+#include <stm32wbxx_ll_dma.h>
+
+#define FURI_HAL_SPEAKER_TIMER TIM16
+#define FURI_HAL_SPEAKER_CHANNEL LL_TIM_CHANNEL_CH1
+#define DMA_INSTANCE DMA1, LL_DMA_CHANNEL_1
+
+#define DTMF_DOLPHIN_HAL_DMA_PRESCALER 4
+#define DTMF_DOLPHIN_HAL_DMA_AUTORELOAD 255
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void dtmf_dolphin_speaker_init();
+
+void dtmf_dolphin_speaker_start();
+
+void dtmf_dolphin_speaker_stop();
+
+void dtmf_dolphin_dma_init(uint32_t address, size_t size);
+
+void dtmf_dolphin_dma_start();
+
+void dtmf_dolphin_dma_stop();
+
+#ifdef __cplusplus
+}
+#endif

applications/plugins/dtmf_dolphin/dtmf_dolphin_i.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "scenes/dtmf_dolphin_scene.h"
+
+#include <gui/gui.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+// #include <gui/modules/submenu.h>
+// #include <gui/modules/widget.h>
+#include <gui/modules/variable_item_list.h>
+#include <notification/notification_messages.h>
+#include <input/input.h>
+
+#include "dtmf_dolphin_event.h"
+
+#include "views/dtmf_dolphin_dialer.h"
+
+#define TAG "DTMFDolphin"
+
+enum DTMFDolphinSceneState {
+    DTMFDolphinSceneStateDialer,
+    DTMFDolphinSceneStateBluebox,
+    DTMFDolphinSceneStateRedboxUS,
+    DTMFDolphinSceneStateRedboxUK,
+    DTMFDolphinSceneStateRedboxCA,
+    DTMFDolphinSceneStateMisc,
+};
+
+typedef struct {
+    ViewDispatcher* view_dispatcher;
+    SceneManager* scene_manager;
+    VariableItemList* main_menu_list;
+    DTMFDolphinDialer* dtmf_dolphin_dialer;
+
+    Gui* gui;
+    // ButtonPanel* dialer_button_panel;
+    // ButtonPanel* bluebox_button_panel;
+    // ButtonPanel* redbox_button_panel;
+    NotificationApp* notification;
+} DTMFDolphinApp;
+
+typedef enum { DTMFDolphinViewMainMenu, DTMFDolphinViewDialer } DTMFDolphinView;