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https://github.com/Next-Flip/Momentum-Firmware.git
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ff0e885fba
* feat(subghz): added Solight TE44 recognition Added the Solight TE44 weather station, with a protocol similar to Auriol HG06061A but with a checksum and different sync values. Updated the tests as well, including a raw and a decoded capture. * Lint fixes * Update changelog --------- Co-authored-by: Willy-JL <49810075+Willy-JL@users.noreply.github.com>
260 lines
9.9 KiB
C
260 lines
9.9 KiB
C
#include "solight_te44.h"
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#include "furi/core/log.h"
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#define TAG "WSProtocolSolightTE44"
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/*
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* Help
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* https://github.com/merbanan/rtl_433/blob/master/src/devices/solight_te44.c
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*
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* Solight TE44 -- Generic wireless thermometer, which might be sold as part of different kits.
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*
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* So far these were identified (mostly sold in central/eastern europe)
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* - Solight TE44
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* - Solight TE66
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* - EMOS E0107T
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* - NX-6876-917 from Pearl (for FWS-70 station).
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* - newer TFA 30.3197
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*
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* Rated -50 C to 70 C, frequency 433,92 MHz, three selectable channels.
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*
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* Encoding (see in applications/debug/unit_tests/resources/unit_tests/subghz/solight_te44_raw.sub for example)
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* - Data begins with 500 -3890
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* - A zero is encoded 500 -960
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* - A one is encoded 500 -1940
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* - Repetition ends with 500 -470 500 -3890
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*
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* Data structure:
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*
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* - 12 repetitions of the same 36 bit payload, a sync between each repetition
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* - 36 bit payload format: IIII IIII B0cc TTTT TTTT TTTT 1111 cccc cccc
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* ^ ^ ^ ^ ^
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* | | | | |
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* 8 bit ID (resets) at 28--/ | | | |
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* 1 bit battery flag at 27--/ / | |
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* 2 bit channel (0-2) at 24 ---/ / |
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* 12 bit signed int temp(C) scale 10 at 12----/ /
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* 8 bit checksum --------------------------------------------/
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*
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* If you're looking at this and thinking: this looks a lot like the Auriol HG06061A data structure. You're not alone,
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* this is almost identical except for the last checksum, which is not only absent in the Auriol structure, but
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* the same bits encode the humidity value. So maybe this explains older results of some random weather stations with
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* implausible humidity values. By adding this before Auriol and expecting the weird data sync we avoid conflicts
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* with its decoder.
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*
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* @m7i-org - because I want less BinRAW in my life
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*
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*/
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static const SubGhzBlockConst ws_protocol_solight_te44_const = {
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.te_short = 490,
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.te_long = 3000,
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.te_delta = 150,
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.min_count_bit_for_found = 36,
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};
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struct WSProtocolDecoderSolightTE44 {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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WSBlockGeneric generic;
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};
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struct WSProtocolEncoderSolightTE44 {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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WSBlockGeneric generic;
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};
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const SubGhzProtocolDecoder ws_protocol_solight_te44_decoder = {
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.alloc = ws_protocol_decoder_solight_te44_alloc,
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.free = ws_protocol_decoder_solight_te44_free,
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.feed = ws_protocol_decoder_solight_te44_feed,
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.reset = ws_protocol_decoder_solight_te44_reset,
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.get_hash_data = NULL,
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.get_hash_data_long = ws_protocol_decoder_solight_te44_get_hash_data,
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.serialize = ws_protocol_decoder_solight_te44_serialize,
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.deserialize = ws_protocol_decoder_solight_te44_deserialize,
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.get_string = ws_protocol_decoder_solight_te44_get_string,
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.get_string_brief = NULL,
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};
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const SubGhzProtocolEncoder ws_protocol_solight_te44_encoder = {
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.alloc = NULL,
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.free = NULL,
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.deserialize = NULL,
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.stop = NULL,
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.yield = NULL,
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};
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const SubGhzProtocol ws_protocol_solight_te44 = {
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.name = WS_PROTOCOL_SOLIGHT_TE44_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
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SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable | SubGhzProtocolFlag_Load |
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SubGhzProtocolFlag_Save,
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.filter = SubGhzProtocolFilter_Weather,
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.decoder = &ws_protocol_solight_te44_decoder,
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.encoder = &ws_protocol_solight_te44_encoder,
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};
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typedef enum {
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SolightTE44DecoderStepReset = 0,
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SolightTE44DecoderStepSaveDuration,
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SolightTE44DecoderStepCheckDuration,
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} SolightTE44DecoderStep;
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void* ws_protocol_decoder_solight_te44_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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WSProtocolDecoderSolightTE44* instance = malloc(sizeof(WSProtocolDecoderSolightTE44));
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instance->base.protocol = &ws_protocol_solight_te44;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void ws_protocol_decoder_solight_te44_free(void* context) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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free(instance);
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}
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void ws_protocol_decoder_solight_te44_reset(void* context) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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}
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static bool ws_protocol_solight_te44_check(WSProtocolDecoderSolightTE44* instance) {
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if(!instance->decoder.decode_data) return false;
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if(((instance->decoder.decode_data >> 8) & 0x0f) != 0x0f) return false; // const not 1111
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// Rubicson CRC check
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uint8_t msg_rubicson_crc[] = {
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instance->decoder.decode_data >> 28,
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instance->decoder.decode_data >> 20,
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instance->decoder.decode_data >> 12,
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0xf0,
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(instance->decoder.decode_data & 0xf0) | (instance->decoder.decode_data & 0x0f)};
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uint8_t rubicson_crc = subghz_protocol_blocks_crc8(msg_rubicson_crc, 5, 0x31, 0x6c);
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return rubicson_crc == 0;
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}
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/**
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* Analysis of received data
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* @param instance Pointer to a WSBlockGeneric* instance
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*/
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static void ws_protocol_solight_te44_extract_data(WSBlockGeneric* instance) {
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instance->id = (instance->data >> 28) & 0xff;
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instance->battery_low = !(instance->data >> 27) & 0x01;
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instance->channel = ((instance->data >> 24) & 0x03) + 1;
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int16_t temp = (instance->data >> 12) & 0x0fff;
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/* Handle signed data */
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if(temp & 0x0800) {
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temp |= 0xf000;
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}
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instance->temp = (float)temp / 10.0;
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instance->btn = WS_NO_BTN;
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instance->humidity = WS_NO_HUMIDITY;
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}
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void ws_protocol_decoder_solight_te44_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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switch(instance->decoder.parser_step) {
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case SolightTE44DecoderStepReset:
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if((!level) && duration >= ws_protocol_solight_te44_const.te_long) {
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instance->decoder.parser_step = SolightTE44DecoderStepSaveDuration;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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}
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break;
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case SolightTE44DecoderStepSaveDuration:
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if(level) {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = SolightTE44DecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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}
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break;
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case SolightTE44DecoderStepCheckDuration:
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if(!level) {
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if(DURATION_DIFF(duration, ws_protocol_solight_te44_const.te_short) <
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ws_protocol_solight_te44_const.te_delta) {
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if(instance->decoder.decode_count_bit ==
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ws_protocol_solight_te44_const.min_count_bit_for_found &&
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ws_protocol_solight_te44_check(instance)) {
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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ws_protocol_solight_te44_extract_data(&instance->generic);
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if(instance->base.callback) {
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instance->base.callback(&instance->base, instance->base.context);
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}
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}
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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} else if(
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DURATION_DIFF(instance->decoder.te_last, ws_protocol_solight_te44_const.te_short) <
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ws_protocol_solight_te44_const.te_delta) {
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if(DURATION_DIFF(duration, ws_protocol_solight_te44_const.te_short * 2) <
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ws_protocol_solight_te44_const.te_delta) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = SolightTE44DecoderStepSaveDuration;
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} else if(
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DURATION_DIFF(duration, ws_protocol_solight_te44_const.te_short * 4) <
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ws_protocol_solight_te44_const.te_delta) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = SolightTE44DecoderStepSaveDuration;
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} else
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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} else
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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} else
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instance->decoder.parser_step = SolightTE44DecoderStepReset;
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break;
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}
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}
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uint32_t ws_protocol_decoder_solight_te44_get_hash_data(void* context) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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return subghz_protocol_blocks_get_hash_data_long(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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SubGhzProtocolStatus ws_protocol_decoder_solight_te44_serialize(
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void* context,
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FlipperFormat* flipper_format,
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SubGhzRadioPreset* preset) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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SubGhzProtocolStatus
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ws_protocol_decoder_solight_te44_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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return ws_block_generic_deserialize_check_count_bit(
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&instance->generic,
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flipper_format,
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ws_protocol_solight_te44_const.min_count_bit_for_found);
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}
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void ws_protocol_decoder_solight_te44_get_string(void* context, FuriString* output) {
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furi_assert(context);
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WSProtocolDecoderSolightTE44* instance = context;
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ws_block_generic_get_string(&instance->generic, output);
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}
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