diff --git a/assets/unit_tests/nfc/nfc_nfca_signal_long.nfc b/assets/unit_tests/nfc/nfc_nfca_signal_long.nfc
index fae69cb5c..dd6a2ff8e 100644
--- a/assets/unit_tests/nfc/nfc_nfca_signal_long.nfc
+++ b/assets/unit_tests/nfc/nfc_nfca_signal_long.nfc
@@ -3,4 +3,4 @@ Version: 1
 Data length: 18
 Plain data: f1 99 41 43 a1 2f 23 01 de f3 c5 8d 91 4b 1e 50 4a c9
 Timings length: 1304
-Timings: 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 640 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 37 36 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 37 36 641 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 37 37 37 36 37 37 37 36 641 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 0
+Timings: 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 640 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 37 36 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 641 37 36 37 37 37 36 37 37 37 36 37 37 37 37 36 641 37 37 36 37 37 37 36 37 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 37 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 37 37 37 36 37 37 37 36 641 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37
diff --git a/assets/unit_tests/nfc/nfc_nfca_signal_short.nfc b/assets/unit_tests/nfc/nfc_nfca_signal_short.nfc
index 3b7e2d9e9..f447fca26 100644
--- a/assets/unit_tests/nfc/nfc_nfca_signal_short.nfc
+++ b/assets/unit_tests/nfc/nfc_nfca_signal_short.nfc
@@ -3,4 +3,4 @@ Version: 1
 Data length: 4
 Plain data: 14 d8 a0 c9
 Timings length: 296
-Timings: 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 338 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 641 36 37 37 37 37 36 37 0
+Timings: 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 339 37 37 36 37 37 37 36 339 37 37 37 36 37 37 37 338 37 37 37 36 37 37 37 338 37 37 37 37 36 37 37 339 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 641 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 339 37 37 36 37 37 37 37 640 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 339 36 37 37 37 36 37 37 339 37 36 37 37 37 36 37 339 37 36 37 37 37 36 37 339 37 37 36 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 641 36 37 37 37 36 37 37 37 36 37 37 37 36 37 37 641 37 36 37 37 37 36 37 339 37 36 37 37 37 37 36 37 37 37 36 37 37 37 36 641 37 37 36 37 37 37 37 338 37 37 37 36 37 37 37 36 37 37 37 36 37 37 37 339 36 37 37 37 36 37 37 641 36 37 37 37 37 36 37 37
diff --git a/firmware/targets/f18/target.json b/firmware/targets/f18/target.json
index f1963fb01..0abb02019 100644
--- a/firmware/targets/f18/target.json
+++ b/firmware/targets/f18/target.json
@@ -27,6 +27,7 @@
         "one_wire",
         "misc",
         "flipper_application",
+        "pulse_reader",
         "flipperformat",
         "toolbox",
         "flipper18"
diff --git a/firmware/targets/f7/api_symbols.csv b/firmware/targets/f7/api_symbols.csv
index f65ced749..7ab9fea2d 100644
--- a/firmware/targets/f7/api_symbols.csv
+++ b/firmware/targets/f7/api_symbols.csv
@@ -181,6 +181,7 @@ Header,+,lib/one_wire/maxim_crc.h,,
 Header,+,lib/one_wire/one_wire_host.h,,
 Header,+,lib/one_wire/one_wire_slave.h,,
 Header,+,lib/print/wrappers.h,,
+Header,+,lib/pulse_reader/pulse_reader.h,,
 Header,+,lib/subghz/blocks/const.h,,
 Header,+,lib/subghz/blocks/decoder.h,,
 Header,+,lib/subghz/blocks/encoder.h,,
@@ -791,6 +792,7 @@ Function,-,digital_sequence_free,void,DigitalSequence*
 Function,-,digital_sequence_send,_Bool,DigitalSequence*
 Function,-,digital_sequence_set_sendtime,void,"DigitalSequence*, uint32_t"
 Function,-,digital_sequence_set_signal,void,"DigitalSequence*, uint8_t, DigitalSignal*"
+Function,-,digital_sequence_timebase_correction,void,"DigitalSequence*, float"
 Function,-,digital_signal_add,void,"DigitalSignal*, uint32_t"
 Function,-,digital_signal_add_pulse,void,"DigitalSignal*, uint32_t, _Bool"
 Function,-,digital_signal_alloc,DigitalSignal*,uint32_t
@@ -799,7 +801,7 @@ Function,-,digital_signal_free,void,DigitalSignal*
 Function,-,digital_signal_get_edge,uint32_t,"DigitalSignal*, uint32_t"
 Function,-,digital_signal_get_edges_cnt,uint32_t,DigitalSignal*
 Function,-,digital_signal_get_start_level,_Bool,DigitalSignal*
-Function,-,digital_signal_prepare,void,DigitalSignal*
+Function,-,digital_signal_prepare_arr,void,DigitalSignal*
 Function,-,digital_signal_send,void,"DigitalSignal*, const GpioPin*"
 Function,-,diprintf,int,"int, const char*, ..."
 Function,+,dir_walk_alloc,DirWalk*,Storage*
@@ -1692,8 +1694,8 @@ Function,+,gui_direct_draw_release,void,Gui*
 Function,+,gui_get_framebuffer_size,size_t,const Gui*
 Function,+,gui_remove_framebuffer_callback,void,"Gui*, GuiCanvasCommitCallback, void*"
 Function,+,gui_remove_view_port,void,"Gui*, ViewPort*"
-Function,+,gui_set_lockdown,void,"Gui*, _Bool"
 Function,+,gui_set_hide_statusbar,void,"Gui*, _Bool"
+Function,+,gui_set_lockdown,void,"Gui*, _Bool"
 Function,-,gui_view_port_send_to_back,void,"Gui*, ViewPort*"
 Function,+,gui_view_port_send_to_front,void,"Gui*, ViewPort*"
 Function,+,hal_sd_detect,_Bool,
@@ -1819,8 +1821,6 @@ Function,-,islower,int,int
 Function,-,islower_l,int,"int, locale_t"
 Function,-,isnan,int,double
 Function,-,isnanf,int,float
-Function,-,iso7816_tlv_parse,TlvInfo,const uint8_t*
-Function,-,iso7816_tlv_select,TlvInfo,"const uint8_t*, size_t, const uint16_t[], size_t"
 Function,-,isprint,int,int
 Function,-,isprint_l,int,"int, locale_t"
 Function,-,ispunct,int,int
@@ -2122,33 +2122,6 @@ Function,-,modf,double,"double, double*"
 Function,-,modff,float,"float, float*"
 Function,-,modfl,long double,"long double, long double*"
 Function,-,mrand48,long,
-Function,-,mrtd_alloc_init,MrtdApplication*,"FuriHalNfcTxRxContext*, MrtdData*"
-Function,-,mrtd_auth_method_parse_string,_Bool,"MrtdAuthMethod*, const char*"
-Function,-,mrtd_auth_method_string,const char*,MrtdAuthMethod
-Function,-,mrtd_auth_params_load,_Bool,"Storage*, DialogsApp*, MrtdAuthData*, const char*, _Bool"
-Function,-,mrtd_auth_params_save,_Bool,"Storage*, DialogsApp*, MrtdAuthData*, const char*"
-Function,-,mrtd_auth_params_save_file,_Bool,"Storage*, DialogsApp*, MrtdAuthData*, const char*, const char*, const char*"
-Function,-,mrtd_authenticate,_Bool,MrtdApplication*
-Function,-,mrtd_bac_check_digit,uint8_t,"const char*, const uint8_t"
-Function,-,mrtd_bac_decrypt,_Bool,"const uint8_t*, size_t, uint8_t*, uint8_t*"
-Function,-,mrtd_bac_decrypt_verify,_Bool,"const uint8_t*, size_t, uint8_t*, uint8_t*, uint8_t*"
-Function,-,mrtd_bac_decrypt_verify_sm,uint16_t,"const uint8_t*, size_t, uint8_t*, uint8_t*, uint64_t, uint8_t*, size_t*"
-Function,-,mrtd_bac_encrypt,_Bool,"const uint8_t*, size_t, const uint8_t*, uint8_t*"
-Function,-,mrtd_bac_get_kmrz,_Bool,"MrtdAuthData*, char*, uint8_t"
-Function,-,mrtd_bac_keys,_Bool,"MrtdAuthData*, uint8_t[16], uint8_t[16]"
-Function,-,mrtd_bac_keys_from_seed,_Bool,"const uint8_t*, uint8_t*, uint8_t*"
-Function,-,mrtd_bac_mac,_Bool,"const uint8_t*, size_t, const uint8_t*, uint8_t*"
-Function,-,mrtd_bac_mac_finalize,_Bool,"mrtd_bac_mac_ctx*, uint8_t[8]"
-Function,-,mrtd_bac_mac_init,_Bool,"mrtd_bac_mac_ctx*, const uint8_t[16]"
-Function,-,mrtd_bac_mac_pad,_Bool,mrtd_bac_mac_ctx*
-Function,-,mrtd_bac_mac_update,_Bool,"mrtd_bac_mac_ctx*, const uint8_t*, size_t"
-Function,-,mrtd_bac_padded_mac,_Bool,"const uint8_t*, size_t, uint8_t*, uint8_t*"
-Function,-,mrtd_parse_date,void,"MrtdDate*, const unsigned char*"
-Function,-,mrtd_print_date,void,"char*, MrtdDate*"
-Function,-,mrtd_protect_apdu,size_t,"uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, const void*, int16_t, const uint8_t*, const uint8_t*, uint64_t, uint8_t*"
-Function,-,mrtd_read_parse_file,_Bool,"MrtdApplication*, EFFile"
-Function,-,mrtd_select_app,_Bool,"MrtdApplication*, AIDValue"
-Function,-,mrtd_tag_to_file,const EFFile*,uint8_t
 Function,-,nan,double,const char*
 Function,-,nanf,float,const char*
 Function,-,nanl,long double,const char*
@@ -2174,25 +2147,12 @@ Function,+,nfc_device_save_shadow,_Bool,"NfcDevice*, const char*"
 Function,+,nfc_device_set_loading_callback,void,"NfcDevice*, NfcLoadingCallback, void*"
 Function,+,nfc_device_set_name,void,"NfcDevice*, const char*"
 Function,+,nfc_file_select,_Bool,NfcDevice*
-Function,-,nfc_util_bytes2num,uint64_t,"const uint8_t*, uint8_t"
-Function,-,nfc_util_even_parity32,uint8_t,uint32_t
-Function,-,nfc_util_num2bytes,void,"uint64_t, uint8_t, uint8_t*"
-Function,-,nfc_util_odd_parity,void,"const uint8_t*, uint8_t*, uint8_t"
-Function,-,nfc_util_odd_parity8,uint8_t,uint8_t
 Function,-,nfca_append_crc16,void,"uint8_t*, uint16_t"
 Function,-,nfca_emulation_handler,_Bool,"uint8_t*, uint16_t, uint8_t*, uint16_t*"
 Function,-,nfca_get_crc16,uint16_t,"uint8_t*, uint16_t"
 Function,-,nfca_signal_alloc,NfcaSignal*,
 Function,-,nfca_signal_encode,void,"NfcaSignal*, uint8_t*, uint16_t, uint8_t*"
 Function,-,nfca_signal_free,void,NfcaSignal*
-Function,-,nfcv_emu_deinit,void,NfcVData*
-Function,-,nfcv_emu_init,void,"FuriHalNfcDevData*, NfcVData*"
-Function,-,nfcv_emu_loop,_Bool,"FuriHalNfcTxRxContext*, FuriHalNfcDevData*, NfcVData*, uint32_t"
-Function,-,nfcv_emu_send,void,"FuriHalNfcTxRxContext*, NfcVData*, uint8_t*, uint8_t, NfcVSendFlags, uint32_t"
-Function,-,nfcv_inventory,ReturnCode,uint8_t*
-Function,-,nfcv_read_blocks,ReturnCode,"NfcVReader*, NfcVData*"
-Function,-,nfcv_read_card,_Bool,"NfcVReader*, FuriHalNfcDevData*, NfcVData*"
-Function,-,nfcv_read_sysinfo,ReturnCode,"FuriHalNfcDevData*, NfcVData*"
 Function,-,nice_flors_get_custom_btn,uint8_t,
 Function,-,nice_flors_get_original_btn,uint8_t,
 Function,+,nice_flors_reset_original_btn,void,
@@ -2312,6 +2272,7 @@ Function,-,pulse_reader_free,void,PulseReader*
 Function,-,pulse_reader_receive,uint32_t,"PulseReader*, int"
 Function,-,pulse_reader_samples,uint32_t,PulseReader*
 Function,-,pulse_reader_set_bittime,void,"PulseReader*, uint32_t"
+Function,-,pulse_reader_set_pull,void,"PulseReader*, GpioPull"
 Function,-,pulse_reader_set_timebase,void,"PulseReader*, PulseReaderUnit"
 Function,-,pulse_reader_start,void,PulseReader*
 Function,-,pulse_reader_stop,void,PulseReader*
@@ -3484,7 +3445,6 @@ Function,-,timerStopwatchMeasure,uint32_t,
 Function,-,timerStopwatchStart,void,
 Function,-,timingsafe_bcmp,int,"const void*, const void*, size_t"
 Function,-,timingsafe_memcmp,int,"const void*, const void*, size_t"
-Function,-,tlv_number,int,TlvInfo
 Function,-,tmpfile,FILE*,
 Function,-,tmpnam,char*,char*
 Function,-,toascii,int,int
@@ -4808,9 +4768,7 @@ Function,-,y1f,float,float
 Function,-,yn,double,"int, double"
 Function,-,ynf,float,"int, float"
 Variable,-,AHBPrescTable,const uint32_t[16],
-Variable,-,AID,AIDSet,
 Variable,-,APBPrescTable,const uint32_t[8],
-Variable,-,EF,const EFFormat,
 Variable,-,ITM_RxBuffer,volatile int32_t,
 Variable,-,MSIRangeTable,const uint32_t[16],
 Variable,-,SmpsPrescalerTable,const uint32_t[4][6],
diff --git a/firmware/targets/f7/target.json b/firmware/targets/f7/target.json
index 14bb1cd0c..906ee23ad 100644
--- a/firmware/targets/f7/target.json
+++ b/firmware/targets/f7/target.json
@@ -40,6 +40,7 @@
         "mbedtls",
         "lfrfid",
         "flipper_application",
+        "pulse_reader",
         "flipperformat",
         "toolbox"
     ]
diff --git a/lib/SConscript b/lib/SConscript
index 86d5069fc..9742d81a3 100644
--- a/lib/SConscript
+++ b/lib/SConscript
@@ -15,6 +15,7 @@ env.Append(
         Dir("u8g2"),
         Dir("update_util"),
         Dir("print"),
+        Dir("pulse_reader"),
     ],
 )
 
@@ -95,6 +96,7 @@ libs = env.BuildModules(
         "mbedtls",
         "subghz",
         "nfc",
+        "pulse_reader",
         "appframe",
         "misc",
         "lfrfid",
diff --git a/lib/digital_signal/digital_signal.c b/lib/digital_signal/digital_signal.c
index 8e52491ea..59278277c 100644
--- a/lib/digital_signal/digital_signal.c
+++ b/lib/digital_signal/digital_signal.c
@@ -1,13 +1,54 @@
 #include "digital_signal.h"
 
 #include <furi.h>
+#include <furi_hal.h>
 #include <furi_hal_resources.h>
 #include <math.h>
 
+#include <stm32wbxx_ll_dma.h>
+#include <stm32wbxx_ll_tim.h>
+
+/* must be on bank B */
+#define DEBUG_OUTPUT gpio_ext_pb3
+
+struct ReloadBuffer {
+    uint32_t* buffer; /* DMA ringbuffer */
+    uint32_t size; /* maximum entry count of the ring buffer */
+    uint32_t write_pos; /* current buffer write index */
+    uint32_t read_pos; /* current buffer read index */
+    bool dma_active;
+};
+
+struct DigitalSequence {
+    uint8_t signals_size;
+    bool bake;
+    uint32_t sequence_used;
+    uint32_t sequence_size;
+    DigitalSignal** signals;
+    uint8_t* sequence;
+    const GpioPin* gpio;
+    uint32_t send_time;
+    bool send_time_active;
+    LL_DMA_InitTypeDef dma_config_gpio;
+    LL_DMA_InitTypeDef dma_config_timer;
+    uint32_t* gpio_buff;
+    struct ReloadBuffer* dma_buffer;
+};
+
+struct DigitalSignalInternals {
+    uint64_t factor;
+    uint32_t reload_reg_entries;
+    uint32_t reload_reg_remainder;
+    uint32_t gpio_buff[2];
+    const GpioPin* gpio;
+    LL_DMA_InitTypeDef dma_config_gpio;
+    LL_DMA_InitTypeDef dma_config_timer;
+};
+
 #define TAG "DigitalSignal"
 
 #define F_TIM (64000000.0)
-#define T_TIM 1562 /* 15.625 ns *100     */
+#define T_TIM 1562 /* 15.625 ns *100 */
 #define T_TIM_DIV2 781 /* 15.625 ns / 2 *100 */
 
 DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt) {
@@ -17,28 +58,31 @@ DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt) {
     signal->edge_timings = malloc(signal->edges_max_cnt * sizeof(uint32_t));
     signal->edge_cnt = 0;
     signal->reload_reg_buff = malloc(signal->edges_max_cnt * sizeof(uint32_t));
-    signal->reload_reg_entries = 0;
-    signal->reload_reg_remainder = 0;
 
-    signal->dma_config_gpio.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
-    signal->dma_config_gpio.Mode = LL_DMA_MODE_CIRCULAR;
-    signal->dma_config_gpio.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
-    signal->dma_config_gpio.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
-    signal->dma_config_gpio.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
-    signal->dma_config_gpio.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
-    signal->dma_config_gpio.NbData = 2;
-    signal->dma_config_gpio.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
-    signal->dma_config_gpio.Priority = LL_DMA_PRIORITY_VERYHIGH;
+    signal->internals = malloc(sizeof(DigitalSignalInternals));
+    DigitalSignalInternals* internals = signal->internals;
 
-    signal->dma_config_timer.PeriphOrM2MSrcAddress = (uint32_t) & (TIM2->ARR);
-    signal->dma_config_timer.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
-    signal->dma_config_timer.Mode = LL_DMA_MODE_NORMAL;
-    signal->dma_config_timer.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
-    signal->dma_config_timer.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
-    signal->dma_config_timer.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
-    signal->dma_config_timer.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
-    signal->dma_config_timer.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
-    signal->dma_config_timer.Priority = LL_DMA_PRIORITY_HIGH;
+    internals->factor = 1024 * 1024;
+
+    internals->dma_config_gpio.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
+    internals->dma_config_gpio.Mode = LL_DMA_MODE_CIRCULAR;
+    internals->dma_config_gpio.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    internals->dma_config_gpio.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    internals->dma_config_gpio.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    internals->dma_config_gpio.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    internals->dma_config_gpio.NbData = 2;
+    internals->dma_config_gpio.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
+    internals->dma_config_gpio.Priority = LL_DMA_PRIORITY_VERYHIGH;
+
+    internals->dma_config_timer.PeriphOrM2MSrcAddress = (uint32_t) & (TIM2->ARR);
+    internals->dma_config_timer.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
+    internals->dma_config_timer.Mode = LL_DMA_MODE_NORMAL;
+    internals->dma_config_timer.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    internals->dma_config_timer.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    internals->dma_config_timer.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    internals->dma_config_timer.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    internals->dma_config_timer.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
+    internals->dma_config_timer.Priority = LL_DMA_PRIORITY_HIGH;
 
     return signal;
 }
@@ -46,8 +90,13 @@ DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt) {
 void digital_signal_free(DigitalSignal* signal) {
     furi_assert(signal);
 
+    if(!signal) {
+        return;
+    }
+
     free(signal->edge_timings);
     free(signal->reload_reg_buff);
+    free(signal->internals);
     free(signal);
 }
 
@@ -129,33 +178,50 @@ uint32_t digital_signal_get_edge(DigitalSignal* signal, uint32_t edge_num) {
     return signal->edge_timings[edge_num];
 }
 
-void digital_signal_prepare(DigitalSignal* signal) {
+void digital_signal_prepare_arr(DigitalSignal* signal) {
     furi_assert(signal);
-    furi_assert(signal->gpio);
-    furi_assert(signal->gpio->pin);
+
+    DigitalSignalInternals* internals = signal->internals;
 
     /* set up signal polarities */
-    uint32_t bit_set = signal->gpio->pin;
-    uint32_t bit_reset = signal->gpio->pin << 16;
+    if(internals->gpio) {
+        uint32_t bit_set = internals->gpio->pin;
+        uint32_t bit_reset = internals->gpio->pin << 16;
 
-    if(signal->start_level) {
-        signal->gpio_buff[0] = bit_set;
-        signal->gpio_buff[1] = bit_reset;
-    } else {
-        signal->gpio_buff[0] = bit_reset;
-        signal->gpio_buff[1] = bit_set;
+#ifdef DEBUG_OUTPUT
+        bit_set |= DEBUG_OUTPUT.pin;
+        bit_reset |= DEBUG_OUTPUT.pin << 16;
+#endif
+
+        if(signal->start_level) {
+            internals->gpio_buff[0] = bit_set;
+            internals->gpio_buff[1] = bit_reset;
+        } else {
+            internals->gpio_buff[0] = bit_reset;
+            internals->gpio_buff[1] = bit_set;
+        }
     }
 
     /* set up edge timings */
-    signal->reload_reg_entries = 0;
+    internals->reload_reg_entries = 0;
 
     for(size_t pos = 0; pos < signal->edge_cnt; pos++) {
-        uint32_t pulse_duration = signal->edge_timings[pos] + signal->reload_reg_remainder;
+        uint32_t edge_scaled = (internals->factor * signal->edge_timings[pos]) / (1024 * 1024);
+        uint32_t pulse_duration = edge_scaled + internals->reload_reg_remainder;
+        if(pulse_duration < 10 || pulse_duration > 10000000) {
+            FURI_LOG_D(
+                TAG,
+                "[prepare] pulse_duration out of range: %lu = %lu * %llu",
+                pulse_duration,
+                signal->edge_timings[pos],
+                internals->factor);
+            pulse_duration = 100;
+        }
         uint32_t pulse_ticks = (pulse_duration + T_TIM_DIV2) / T_TIM;
-        signal->reload_reg_remainder = pulse_duration - (pulse_ticks * T_TIM);
+        internals->reload_reg_remainder = pulse_duration - (pulse_ticks * T_TIM);
 
         if(pulse_ticks > 1) {
-            signal->reload_reg_buff[signal->reload_reg_entries++] = pulse_ticks - 1;
+            signal->reload_reg_buff[internals->reload_reg_entries++] = pulse_ticks - 1;
         }
     }
 }
@@ -169,30 +235,8 @@ static void digital_signal_stop_dma() {
 
 static void digital_signal_stop_timer() {
     LL_TIM_DisableCounter(TIM2);
-    LL_TIM_SetCounter(TIM2, 0);
-}
-
-static bool digital_signal_setup_dma(DigitalSignal* signal) {
-    furi_assert(signal);
-
-    if(!signal->reload_reg_entries) {
-        return false;
-    }
-
-    signal->dma_config_gpio.MemoryOrM2MDstAddress = (uint32_t)signal->gpio_buff;
-    signal->dma_config_gpio.PeriphOrM2MSrcAddress = (uint32_t) & (signal->gpio->port->BSRR);
-    signal->dma_config_timer.MemoryOrM2MDstAddress = (uint32_t)signal->reload_reg_buff;
-    signal->dma_config_timer.NbData = signal->reload_reg_entries;
-
-    /* set up DMA channel 1 and 2 for GPIO and timer copy operations */
-    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_1, &signal->dma_config_gpio);
-    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_2, &signal->dma_config_timer);
-
-    /* enable both DMA channels */
-    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_1);
-    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_2);
-
-    return true;
+    LL_TIM_DisableUpdateEvent(TIM2);
+    LL_TIM_DisableDMAReq_UPDATE(TIM2);
 }
 
 static void digital_signal_setup_timer() {
@@ -201,15 +245,40 @@ static void digital_signal_setup_timer() {
     LL_TIM_SetCounterMode(TIM2, LL_TIM_COUNTERMODE_UP);
     LL_TIM_SetClockDivision(TIM2, LL_TIM_CLOCKDIVISION_DIV1);
     LL_TIM_SetPrescaler(TIM2, 0);
-    LL_TIM_SetAutoReload(TIM2, 10);
+    LL_TIM_SetAutoReload(TIM2, 0xFFFFFFFF);
     LL_TIM_SetCounter(TIM2, 0);
-    LL_TIM_EnableUpdateEvent(TIM2);
-    LL_TIM_EnableDMAReq_UPDATE(TIM2);
 }
 
 static void digital_signal_start_timer() {
-    LL_TIM_GenerateEvent_UPDATE(TIM2);
     LL_TIM_EnableCounter(TIM2);
+    LL_TIM_EnableUpdateEvent(TIM2);
+    LL_TIM_EnableDMAReq_UPDATE(TIM2);
+    LL_TIM_GenerateEvent_UPDATE(TIM2);
+}
+
+static bool digital_signal_setup_dma(DigitalSignal* signal) {
+    furi_assert(signal);
+    DigitalSignalInternals* internals = signal->internals;
+
+    if(!signal->internals->reload_reg_entries) {
+        return false;
+    }
+    digital_signal_stop_dma();
+
+    internals->dma_config_gpio.MemoryOrM2MDstAddress = (uint32_t)internals->gpio_buff;
+    internals->dma_config_gpio.PeriphOrM2MSrcAddress = (uint32_t) & (internals->gpio->port->BSRR);
+    internals->dma_config_timer.MemoryOrM2MDstAddress = (uint32_t)signal->reload_reg_buff;
+    internals->dma_config_timer.NbData = signal->internals->reload_reg_entries;
+
+    /* set up DMA channel 1 and 2 for GPIO and timer copy operations */
+    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_1, &internals->dma_config_gpio);
+    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_2, &internals->dma_config_timer);
+
+    /* enable both DMA channels */
+    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_1);
+    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_2);
+
+    return true;
 }
 
 void digital_signal_send(DigitalSignal* signal, const GpioPin* gpio) {
@@ -220,12 +289,13 @@ void digital_signal_send(DigitalSignal* signal, const GpioPin* gpio) {
     }
 
     /* Configure gpio as output */
-    signal->gpio = gpio;
-    furi_hal_gpio_init(signal->gpio, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
+    signal->internals->gpio = gpio;
+    furi_hal_gpio_init(
+        signal->internals->gpio, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
 
     /* single signal, add a temporary, terminating edge at the end */
     signal->edge_timings[signal->edge_cnt++] = 10;
-    digital_signal_prepare(signal);
+    digital_signal_prepare_arr(signal);
 
     digital_signal_setup_dma(signal);
     digital_signal_setup_timer();
@@ -240,25 +310,53 @@ void digital_signal_send(DigitalSignal* signal, const GpioPin* gpio) {
     signal->edge_cnt--;
 }
 
-void digital_sequence_alloc_signals(DigitalSequence* sequence, uint32_t size) {
+static void digital_sequence_alloc_signals(DigitalSequence* sequence, uint32_t size) {
     sequence->signals_size = size;
     sequence->signals = malloc(sequence->signals_size * sizeof(DigitalSignal*));
-    sequence->signals_prolonged = malloc(sequence->signals_size * sizeof(bool));
 }
 
-void digital_sequence_alloc_sequence(DigitalSequence* sequence, uint32_t size) {
+static void digital_sequence_alloc_sequence(DigitalSequence* sequence, uint32_t size) {
     sequence->sequence_used = 0;
     sequence->sequence_size = size;
     sequence->sequence = malloc(sequence->sequence_size);
     sequence->send_time = 0;
+    sequence->send_time_active = false;
 }
 
 DigitalSequence* digital_sequence_alloc(uint32_t size, const GpioPin* gpio) {
+    furi_assert(gpio);
+
     DigitalSequence* sequence = malloc(sizeof(DigitalSequence));
 
     sequence->gpio = gpio;
     sequence->bake = false;
 
+    sequence->dma_buffer = malloc(sizeof(struct ReloadBuffer));
+    sequence->dma_buffer->size = 32;
+    sequence->dma_buffer->buffer = malloc(sequence->dma_buffer->size * sizeof(uint32_t));
+
+    sequence->dma_config_gpio.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
+    sequence->dma_config_gpio.Mode = LL_DMA_MODE_CIRCULAR;
+    sequence->dma_config_gpio.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    sequence->dma_config_gpio.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    sequence->dma_config_gpio.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    sequence->dma_config_gpio.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    sequence->dma_config_gpio.NbData = 2;
+    sequence->dma_config_gpio.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
+    sequence->dma_config_gpio.Priority = LL_DMA_PRIORITY_VERYHIGH;
+
+    sequence->dma_config_timer.Direction = LL_DMA_DIRECTION_MEMORY_TO_PERIPH;
+    sequence->dma_config_timer.Mode = LL_DMA_MODE_CIRCULAR;
+    sequence->dma_config_timer.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    sequence->dma_config_timer.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    sequence->dma_config_timer.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    sequence->dma_config_timer.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    sequence->dma_config_timer.PeriphOrM2MSrcAddress = (uint32_t) & (TIM2->ARR);
+    sequence->dma_config_timer.MemoryOrM2MDstAddress = (uint32_t)sequence->dma_buffer->buffer;
+    sequence->dma_config_timer.NbData = sequence->dma_buffer->size;
+    sequence->dma_config_timer.PeriphRequest = LL_DMAMUX_REQ_TIM2_UP;
+    sequence->dma_config_timer.Priority = LL_DMA_PRIORITY_HIGH;
+
     digital_sequence_alloc_signals(sequence, 32);
     digital_sequence_alloc_sequence(sequence, size);
 
@@ -268,8 +366,14 @@ DigitalSequence* digital_sequence_alloc(uint32_t size, const GpioPin* gpio) {
 void digital_sequence_free(DigitalSequence* sequence) {
     furi_assert(sequence);
 
+    if(!sequence) {
+        return;
+    }
+
     free(sequence->signals);
     free(sequence->sequence);
+    free(sequence->dma_buffer->buffer);
+    free(sequence->dma_buffer);
     free(sequence);
 }
 
@@ -282,14 +386,17 @@ void digital_sequence_set_signal(
     furi_assert(signal_index < sequence->signals_size);
 
     sequence->signals[signal_index] = signal;
-    signal->gpio = sequence->gpio;
-    signal->reload_reg_remainder = 0;
+    signal->internals->gpio = sequence->gpio;
+    signal->internals->reload_reg_remainder = 0;
 
-    digital_signal_prepare(signal);
+    digital_signal_prepare_arr(signal);
 }
 
 void digital_sequence_set_sendtime(DigitalSequence* sequence, uint32_t send_time) {
+    furi_assert(sequence);
+
     sequence->send_time = send_time;
+    sequence->send_time_active = true;
 }
 
 void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index) {
@@ -304,86 +411,28 @@ void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index) {
     sequence->sequence[sequence->sequence_used++] = signal_index;
 }
 
-void digital_signal_update_dma(DigitalSignal* signal) {
-    volatile uint32_t dma1_data[] = {
-        /* R6  */ (uint32_t) & (DMA1_Channel1->CCR),
-        /* R7  */ DMA1_Channel1->CCR & ~DMA_CCR_EN,
-        /* R8  */ 2,
-        /* R9  */ (uint32_t) & (signal->gpio->port->BSRR),
-        /* R10 */ (uint32_t)signal->gpio_buff,
-        /* R11 */ DMA1_Channel1->CCR | DMA_CCR_EN};
-
-    volatile uint32_t dma2_data[] = {
-        /* R0 */ (uint32_t) & (DMA1_Channel2->CCR),
-        /* R1 */ DMA1_Channel2->CCR & ~DMA_CCR_EN,
-        /* R2 */ (uint32_t)signal->reload_reg_entries,
-        /* R3 */ (uint32_t) & (TIM2->ARR),
-        /* R4 */ (uint32_t)signal->reload_reg_buff,
-        /* R5 */ DMA1_Channel2->CCR | DMA_CCR_EN};
-
-    /* hurry when setting up next transfer */
-    asm volatile("\t"
-                 "MOV     r6, %[data1]\n\t"
-                 "MOV     r7, %[data2]\n\t"
-
-                 "PUSH    {r0-r12}\n\t"
-
-                 "LDM     r7, {r0-r5}\n\t"
-                 "LDM     r6, {r6-r11}\n\t"
-
-                 "loop:\n\t"
-                 "LDR     r12, [r0, #4]\n\t"
-                 "CMP     r12, #0\n\t"
-                 "BNE     loop\n\t"
-
-                 "STM     r6, {r7-r10}\n\t" /* disable channel and set up new parameters */
-                 "STR     r11, [r6, #0]\n\t" /* enable channel again */
-                 "STM     r0, {r1-r4}\n\t" /* disable channel and set up new parameters */
-                 "STR     r5, [r0, #0]\n\t" /* enable channel again */
-
-                 "POP     {r0-r12}\n\t"
-
-                 : /* no outputs*/
-                 : /* inputs */
-                 [data1] "r"(dma1_data), [data2] "r"(dma2_data)
-                 : "r6", "r7");
-
-    LL_DMA_ClearFlag_TC1(DMA1);
-    LL_DMA_ClearFlag_TC2(DMA1);
-}
-
-static bool digital_sequence_send_signal(DigitalSequence* sequence, DigitalSignal* signal) {
+static bool digital_sequence_setup_dma(DigitalSequence* sequence) {
     furi_assert(sequence);
-    furi_assert(signal);
 
-    /* the first iteration has to set up the whole machinery */
-    if(!LL_DMA_IsEnabledChannel(DMA1, LL_DMA_CHANNEL_1)) {
-        if(!digital_signal_setup_dma(signal)) {
-            FURI_LOG_D(TAG, "digital_sequence_send_signal: Signal has no entries, aborting");
-            return false;
-        }
-        digital_signal_setup_timer();
+    digital_signal_stop_dma();
 
-        /* if the send time is specified, wait till the core timer passed beyond that time */
-        if(sequence->send_time != 0) {
-            while(true) {
-                uint32_t delta = sequence->send_time - DWT->CYCCNT;
-                /* yeah, it's making use of underflows... */
-                if(delta > 0x80000000) {
-                    break;
-                }
-            }
-        }
-        digital_signal_start_timer();
-    } else {
-        /* configure next polarities and timings */
-        digital_signal_update_dma(signal);
-    }
+    sequence->dma_config_gpio.MemoryOrM2MDstAddress = (uint32_t)sequence->gpio_buff;
+    sequence->dma_config_gpio.PeriphOrM2MSrcAddress = (uint32_t) & (sequence->gpio->port->BSRR);
+
+    /* set up DMA channel 1 and 2 for GPIO and timer copy operations */
+    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_1, &sequence->dma_config_gpio);
+    LL_DMA_Init(DMA1, LL_DMA_CHANNEL_2, &sequence->dma_config_timer);
+
+    /* enable both DMA channels */
+    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_1);
+    LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_2);
 
     return true;
 }
 
-DigitalSignal* digital_sequence_bake(DigitalSequence* sequence) {
+static DigitalSignal* digital_sequence_bake(DigitalSequence* sequence) {
+    furi_assert(sequence);
+
     uint32_t edges = 0;
 
     for(uint32_t pos = 0; pos < sequence->sequence_used; pos++) {
@@ -405,10 +454,95 @@ DigitalSignal* digital_sequence_bake(DigitalSequence* sequence) {
     return ret;
 }
 
+static void digital_sequence_update_pos(DigitalSequence* sequence) {
+    struct ReloadBuffer* dma_buffer = sequence->dma_buffer;
+
+    dma_buffer->read_pos = dma_buffer->size - LL_DMA_GetDataLength(DMA1, LL_DMA_CHANNEL_2);
+}
+
+static const uint32_t wait_ms = 10;
+static const uint32_t wait_ticks = wait_ms * 1000 * 64;
+
+static void digital_sequence_finish(DigitalSequence* sequence) {
+    struct ReloadBuffer* dma_buffer = sequence->dma_buffer;
+
+    if(dma_buffer->dma_active) {
+        uint32_t prev_timer = DWT->CYCCNT;
+        uint32_t end_pos = (dma_buffer->write_pos + 1) % dma_buffer->size;
+        do {
+            uint32_t last_pos = dma_buffer->read_pos;
+
+            digital_sequence_update_pos(sequence);
+
+            /* we are finished, when the DMA transferred the 0xFFFFFFFF-timer which is the current write_pos */
+            if(dma_buffer->read_pos == end_pos) {
+                break;
+            }
+
+            if(last_pos != dma_buffer->read_pos) {
+                prev_timer = DWT->CYCCNT;
+            }
+            if(DWT->CYCCNT - prev_timer > wait_ticks) {
+                FURI_LOG_D(
+                    TAG,
+                    "[SEQ] hung %lu ms in finish (ARR 0x%08lx, read %lu, write %lu)",
+                    wait_ms,
+                    TIM2->ARR,
+                    dma_buffer->read_pos,
+                    dma_buffer->write_pos);
+                break;
+            }
+        } while(1);
+    }
+
+    digital_signal_stop_timer();
+    digital_signal_stop_dma();
+}
+
+static void digital_sequence_queue_pulse(DigitalSequence* sequence, uint32_t length) {
+    struct ReloadBuffer* dma_buffer = sequence->dma_buffer;
+
+    if(dma_buffer->dma_active) {
+        uint32_t prev_timer = DWT->CYCCNT;
+        uint32_t end_pos = (dma_buffer->write_pos + 1) % dma_buffer->size;
+        do {
+            uint32_t last_pos = dma_buffer->read_pos;
+            digital_sequence_update_pos(sequence);
+
+            if(dma_buffer->read_pos != end_pos) {
+                break;
+            }
+
+            if(last_pos != dma_buffer->read_pos) {
+                prev_timer = DWT->CYCCNT;
+            }
+            if(DWT->CYCCNT - prev_timer > wait_ticks) {
+                FURI_LOG_D(
+                    TAG,
+                    "[SEQ] hung %lu ms in queue (ARR 0x%08lx, read %lu, write %lu)",
+                    wait_ms,
+                    TIM2->ARR,
+                    dma_buffer->read_pos,
+                    dma_buffer->write_pos);
+                break;
+            }
+        } while(1);
+    }
+
+    dma_buffer->buffer[dma_buffer->write_pos] = length;
+    dma_buffer->write_pos = (dma_buffer->write_pos + 1) % dma_buffer->size;
+    dma_buffer->buffer[dma_buffer->write_pos] = 0xFFFFFFFF;
+}
+
 bool digital_sequence_send(DigitalSequence* sequence) {
     furi_assert(sequence);
 
+    struct ReloadBuffer* dma_buffer = sequence->dma_buffer;
+
     furi_hal_gpio_init(sequence->gpio, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
+#ifdef DEBUG_OUTPUT
+    furi_hal_gpio_init(&DEBUG_OUTPUT, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
+#endif
 
     if(sequence->bake) {
         DigitalSignal* sig = digital_sequence_bake(sequence);
@@ -419,66 +553,90 @@ bool digital_sequence_send(DigitalSequence* sequence) {
     }
 
     int32_t remainder = 0;
+    bool traded_first = false;
+
     FURI_CRITICAL_ENTER();
 
-    for(uint32_t pos = 0; pos < sequence->sequence_used; pos++) {
-        uint8_t signal_index = sequence->sequence[pos];
+    dma_buffer->dma_active = false;
+    dma_buffer->buffer[0] = 0xFFFFFFFF;
+    dma_buffer->read_pos = 0;
+    dma_buffer->write_pos = 0;
+
+    for(uint32_t seq_pos = 0; seq_pos < sequence->sequence_used; seq_pos++) {
+        uint8_t signal_index = sequence->sequence[seq_pos];
         DigitalSignal* sig = sequence->signals[signal_index];
+        bool last_signal = ((seq_pos + 1) == sequence->sequence_used);
 
-        if(!sig) {
-            FURI_LOG_D(
-                TAG,
-                "digital_sequence_send: Signal at index %u, used at pos %lu is NULL, aborting",
-                signal_index,
-                pos);
-            break;
+        /* all signals are prepared and we can re-use the GPIO buffer from the fist signal */
+        if(seq_pos == 0) {
+            sequence->gpio_buff = sig->internals->gpio_buff;
         }
 
-        /* when we are too late more than half a tick, make the first edge temporarily longer */
-        bool needs_prolongation = false;
-
-        if(remainder >= T_TIM_DIV2) {
-            remainder -= T_TIM;
-            needs_prolongation = true;
-        }
-
-        /* update the total remainder */
-        remainder += sig->reload_reg_remainder;
-
-        /* do we need to update the prolongation? */
-        if(needs_prolongation != sequence->signals_prolonged[signal_index]) {
-            if(needs_prolongation) {
-                sig->edge_timings[0]++;
-            } else {
-                sig->edge_timings[0]--;
+        for(uint32_t pulse_pos = 0; pulse_pos < sig->internals->reload_reg_entries; pulse_pos++) {
+            if(traded_first) {
+                traded_first = false;
+                continue;
             }
-            sequence->signals_prolonged[signal_index] = needs_prolongation;
-        }
+            uint32_t pulse_length = 0;
+            bool last_pulse = ((pulse_pos + 1) == sig->internals->reload_reg_entries);
 
-        bool success = digital_sequence_send_signal(sequence, sig);
+            pulse_length = sig->reload_reg_buff[pulse_pos];
 
-        if(!success) {
-            break;
+            /* when we are too late more than half a tick, make the first edge temporarily longer */
+            if(remainder >= T_TIM_DIV2) {
+                remainder -= T_TIM;
+                pulse_length += 1;
+            }
+            remainder += sig->internals->reload_reg_remainder;
+
+            /* last pulse in that signal and have a next signal? */
+            if(last_pulse) {
+                if((seq_pos + 1) < sequence->sequence_used) {
+                    DigitalSignal* sig_next = sequence->signals[sequence->sequence[seq_pos + 1]];
+
+                    /* when a signal ends with the same level as the next signal begins, let the fist signal generate the whole pulse */
+                    /* beware, we do not want the level after the last edge, but the last level before that edge */
+                    bool end_level = sig->start_level ^ ((sig->edge_cnt % 2) == 0);
+
+                    /* take from the next, add it to the current if they have the same level */
+                    if(end_level == sig_next->start_level) {
+                        pulse_length += sig_next->reload_reg_buff[0];
+                        traded_first = true;
+                    }
+                }
+            }
+
+            digital_sequence_queue_pulse(sequence, pulse_length);
+
+            /* start transmission when buffer was filled enough */
+            bool start_send = sequence->dma_buffer->write_pos >= (sequence->dma_buffer->size - 4);
+
+            /* or it was the last pulse */
+            if(last_pulse && last_signal) {
+                start_send = true;
+            }
+
+            /* start transmission */
+            if(start_send && !dma_buffer->dma_active) {
+                digital_sequence_setup_dma(sequence);
+                digital_signal_setup_timer();
+
+                /* if the send time is specified, wait till the core timer passed beyond that time */
+                if(sequence->send_time_active) {
+                    sequence->send_time_active = false;
+                    while(sequence->send_time - DWT->CYCCNT < 0x80000000) {
+                    }
+                }
+                digital_signal_start_timer();
+                dma_buffer->dma_active = true;
+            }
         }
     }
+
+    /* wait until last dma transaction was finished */
+    digital_sequence_finish(sequence);
     FURI_CRITICAL_EXIT();
 
-    while(LL_DMA_GetDataLength(DMA1, LL_DMA_CHANNEL_2)) {
-    }
-
-    digital_signal_stop_timer();
-    digital_signal_stop_dma();
-
-    /* undo previously prolonged edges */
-    for(uint32_t pos = 0; pos < sequence->signals_size; pos++) {
-        DigitalSignal* sig = sequence->signals[pos];
-
-        if(sig && sequence->signals_prolonged[pos]) {
-            sig->edge_timings[0]--;
-            sequence->signals_prolonged[pos] = false;
-        }
-    }
-
     return true;
 }
 
@@ -487,3 +645,14 @@ void digital_sequence_clear(DigitalSequence* sequence) {
 
     sequence->sequence_used = 0;
 }
+
+void digital_sequence_timebase_correction(DigitalSequence* sequence, float factor) {
+    for(uint32_t sig_pos = 0; sig_pos < sequence->signals_size; sig_pos++) {
+        DigitalSignal* signal = sequence->signals[sig_pos];
+
+        if(signal) {
+            signal->internals->factor = (uint32_t)(1024 * 1024 * factor);
+            digital_signal_prepare_arr(signal);
+        }
+    }
+}
diff --git a/lib/digital_signal/digital_signal.h b/lib/digital_signal/digital_signal.h
index 2e1a05522..40afb1e41 100644
--- a/lib/digital_signal/digital_signal.h
+++ b/lib/digital_signal/digital_signal.h
@@ -5,8 +5,6 @@
 #include <stdbool.h>
 
 #include <furi_hal_gpio.h>
-#include <stm32wbxx_ll_dma.h>
-#include <stm32wbxx_ll_tim.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -18,31 +16,20 @@ extern "C" {
 #define DIGITAL_SIGNAL_NS(x) (x * 100UL)
 #define DIGITAL_SIGNAL_PS(x) (x / 10UL)
 
-typedef struct {
+/* using an anonymous type for the internals */
+typedef struct DigitalSignalInternals DigitalSignalInternals;
+
+/* and a public one for accessing user-side fields */
+typedef struct DigitalSignal {
     bool start_level;
     uint32_t edge_cnt;
     uint32_t edges_max_cnt;
     uint32_t* edge_timings;
-    uint32_t* reload_reg_buff;
-    uint32_t reload_reg_entries;
-    uint32_t reload_reg_remainder;
-    uint32_t gpio_buff[2];
-    const GpioPin* gpio;
-    LL_DMA_InitTypeDef dma_config_gpio;
-    LL_DMA_InitTypeDef dma_config_timer;
+    uint32_t* reload_reg_buff; /* internal, but used by unit tests */
+    DigitalSignalInternals* internals;
 } DigitalSignal;
 
-typedef struct {
-    uint8_t signals_size;
-    bool bake;
-    uint32_t sequence_used;
-    uint32_t sequence_size;
-    DigitalSignal** signals;
-    bool* signals_prolonged;
-    uint8_t* sequence;
-    const GpioPin* gpio;
-    uint32_t send_time;
-} DigitalSequence;
+typedef struct DigitalSequence DigitalSequence;
 
 DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt);
 
@@ -54,7 +41,7 @@ void digital_signal_add_pulse(DigitalSignal* signal, uint32_t ticks, bool level)
 
 bool digital_signal_append(DigitalSignal* signal_a, DigitalSignal* signal_b);
 
-void digital_signal_prepare(DigitalSignal* signal);
+void digital_signal_prepare_arr(DigitalSignal* signal);
 
 bool digital_signal_get_start_level(DigitalSignal* signal);
 
@@ -74,6 +61,7 @@ void digital_sequence_set_sendtime(DigitalSequence* sequence, uint32_t send_time
 void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index);
 bool digital_sequence_send(DigitalSequence* sequence);
 void digital_sequence_clear(DigitalSequence* sequence);
+void digital_sequence_timebase_correction(DigitalSequence* sequence, float factor);
 
 #ifdef __cplusplus
 }
diff --git a/lib/pulse_reader/SConscript b/lib/pulse_reader/SConscript
new file mode 100644
index 000000000..f00851a20
--- /dev/null
+++ b/lib/pulse_reader/SConscript
@@ -0,0 +1,27 @@
+Import("env")
+
+env.Append(
+    CPPPATH=[
+        "#/lib/pulse_reader",
+    ],
+    SDK_HEADERS=[
+        File("pulse_reader.h"),
+    ],
+)
+
+libenv = env.Clone(FW_LIB_NAME="pulse_reader")
+libenv.ApplyLibFlags()
+
+libenv.AppendUnique(
+    CCFLAGS=[
+        # Required for lib to be linkable with .faps
+        "-mword-relocations",
+        "-mlong-calls",
+    ],
+)
+
+sources = libenv.GlobRecursive("*.c*")
+
+lib = libenv.StaticLibrary("${FW_LIB_NAME}", sources)
+libenv.Install("${LIB_DIST_DIR}", lib)
+Return("lib")
diff --git a/lib/pulse_reader/pulse_reader.c b/lib/pulse_reader/pulse_reader.c
new file mode 100644
index 000000000..c8d0e3ff7
--- /dev/null
+++ b/lib/pulse_reader/pulse_reader.c
@@ -0,0 +1,237 @@
+#include "pulse_reader.h"
+
+#include <limits.h>
+#include <furi.h>
+#include <furi_hal.h>
+#include <furi_hal_gpio.h>
+
+#include <stm32wbxx_ll_dma.h>
+#include <stm32wbxx_ll_dmamux.h>
+#include <stm32wbxx_ll_tim.h>
+#include <stm32wbxx_ll_exti.h>
+
+struct PulseReader {
+    uint32_t* timer_buffer;
+    uint32_t* gpio_buffer;
+    uint32_t size;
+    uint32_t pos;
+    uint32_t timer_value;
+    uint32_t gpio_value;
+    uint32_t gpio_mask;
+    uint32_t unit_multiplier;
+    uint32_t unit_divider;
+    uint32_t bit_time;
+    uint32_t dma_channel;
+    const GpioPin* gpio;
+    GpioPull pull;
+    LL_DMA_InitTypeDef dma_config_timer;
+    LL_DMA_InitTypeDef dma_config_gpio;
+};
+
+#define GPIO_PIN_MAP(pin, prefix)               \
+    (((pin) == (LL_GPIO_PIN_0))  ? prefix##0 :  \
+     ((pin) == (LL_GPIO_PIN_1))  ? prefix##1 :  \
+     ((pin) == (LL_GPIO_PIN_2))  ? prefix##2 :  \
+     ((pin) == (LL_GPIO_PIN_3))  ? prefix##3 :  \
+     ((pin) == (LL_GPIO_PIN_4))  ? prefix##4 :  \
+     ((pin) == (LL_GPIO_PIN_5))  ? prefix##5 :  \
+     ((pin) == (LL_GPIO_PIN_6))  ? prefix##6 :  \
+     ((pin) == (LL_GPIO_PIN_7))  ? prefix##7 :  \
+     ((pin) == (LL_GPIO_PIN_8))  ? prefix##8 :  \
+     ((pin) == (LL_GPIO_PIN_9))  ? prefix##9 :  \
+     ((pin) == (LL_GPIO_PIN_10)) ? prefix##10 : \
+     ((pin) == (LL_GPIO_PIN_11)) ? prefix##11 : \
+     ((pin) == (LL_GPIO_PIN_12)) ? prefix##12 : \
+     ((pin) == (LL_GPIO_PIN_13)) ? prefix##13 : \
+     ((pin) == (LL_GPIO_PIN_14)) ? prefix##14 : \
+                                   prefix##15)
+
+#define GET_DMAMUX_EXTI_LINE(pin) GPIO_PIN_MAP(pin, LL_DMAMUX_REQ_GEN_EXTI_LINE)
+
+PulseReader* pulse_reader_alloc(const GpioPin* gpio, uint32_t size) {
+    PulseReader* signal = malloc(sizeof(PulseReader));
+    signal->timer_buffer = malloc(size * sizeof(uint32_t));
+    signal->gpio_buffer = malloc(size * sizeof(uint32_t));
+    signal->dma_channel = LL_DMA_CHANNEL_4;
+    signal->gpio = gpio;
+    signal->pull = GpioPullNo;
+    signal->size = size;
+    signal->timer_value = 0;
+    signal->pos = 0;
+
+    pulse_reader_set_timebase(signal, PulseReaderUnit64MHz);
+    pulse_reader_set_bittime(signal, 1);
+
+    signal->dma_config_timer.Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
+    signal->dma_config_timer.PeriphOrM2MSrcAddress = (uint32_t) & (TIM2->CNT);
+    signal->dma_config_timer.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    signal->dma_config_timer.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    signal->dma_config_timer.MemoryOrM2MDstAddress = (uint32_t)signal->timer_buffer;
+    signal->dma_config_timer.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    signal->dma_config_timer.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    signal->dma_config_timer.Mode = LL_DMA_MODE_CIRCULAR;
+    signal->dma_config_timer.PeriphRequest =
+        LL_DMAMUX_REQ_GENERATOR0; /* executes LL_DMA_SetPeriphRequest */
+    signal->dma_config_timer.Priority = LL_DMA_PRIORITY_VERYHIGH;
+
+    signal->dma_config_gpio.Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
+    signal->dma_config_gpio.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
+    signal->dma_config_gpio.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD;
+    signal->dma_config_gpio.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT;
+    signal->dma_config_gpio.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD;
+    signal->dma_config_gpio.Mode = LL_DMA_MODE_CIRCULAR;
+    signal->dma_config_gpio.PeriphRequest =
+        LL_DMAMUX_REQ_GENERATOR0; /* executes LL_DMA_SetPeriphRequest */
+    signal->dma_config_gpio.Priority = LL_DMA_PRIORITY_VERYHIGH;
+
+    return signal;
+}
+
+void pulse_reader_set_timebase(PulseReader* signal, PulseReaderUnit unit) {
+    switch(unit) {
+    case PulseReaderUnit64MHz:
+        signal->unit_multiplier = 1;
+        signal->unit_divider = 1;
+        break;
+    case PulseReaderUnitPicosecond:
+        signal->unit_multiplier = 15625;
+        signal->unit_divider = 1;
+        break;
+    case PulseReaderUnitNanosecond:
+        signal->unit_multiplier = 15625;
+        signal->unit_divider = 1000;
+        break;
+    case PulseReaderUnitMicrosecond:
+        signal->unit_multiplier = 15625;
+        signal->unit_divider = 1000000;
+        break;
+    }
+}
+
+void pulse_reader_set_bittime(PulseReader* signal, uint32_t bit_time) {
+    signal->bit_time = bit_time;
+}
+
+void pulse_reader_set_pull(PulseReader* signal, GpioPull pull) {
+    signal->pull = pull;
+}
+
+void pulse_reader_free(PulseReader* signal) {
+    furi_assert(signal);
+
+    if(!signal) {
+        return;
+    }
+
+    free(signal->timer_buffer);
+    free(signal->gpio_buffer);
+    free(signal);
+}
+
+uint32_t pulse_reader_samples(PulseReader* signal) {
+    uint32_t dma_pos = signal->size - (uint32_t)LL_DMA_GetDataLength(DMA1, signal->dma_channel);
+
+    return ((signal->pos + signal->size) - dma_pos) % signal->size;
+}
+
+void pulse_reader_stop(PulseReader* signal) {
+    LL_DMA_DisableChannel(DMA1, signal->dma_channel);
+    LL_DMA_DisableChannel(DMA1, signal->dma_channel + 1);
+    LL_DMAMUX_DisableRequestGen(NULL, LL_DMAMUX_REQ_GEN_0);
+    LL_TIM_DisableCounter(TIM2);
+    furi_hal_gpio_init_simple(signal->gpio, GpioModeAnalog);
+}
+
+void pulse_reader_start(PulseReader* signal) {
+    /* configure DMA to read from a timer peripheral */
+    signal->dma_config_timer.NbData = signal->size;
+
+    signal->dma_config_gpio.PeriphOrM2MSrcAddress = (uint32_t) & (signal->gpio->port->IDR);
+    signal->dma_config_gpio.MemoryOrM2MDstAddress = (uint32_t)signal->gpio_buffer;
+    signal->dma_config_gpio.NbData = signal->size;
+
+    /* start counter */
+    LL_TIM_SetCounterMode(TIM2, LL_TIM_COUNTERMODE_UP);
+    LL_TIM_SetClockDivision(TIM2, LL_TIM_CLOCKDIVISION_DIV1);
+    LL_TIM_SetPrescaler(TIM2, 0);
+    LL_TIM_SetAutoReload(TIM2, 0xFFFFFFFF);
+    LL_TIM_SetCounter(TIM2, 0);
+    LL_TIM_EnableCounter(TIM2);
+
+    /* generator 0 gets fed by EXTI_LINEn */
+    LL_DMAMUX_SetRequestSignalID(
+        NULL, LL_DMAMUX_REQ_GEN_0, GET_DMAMUX_EXTI_LINE(signal->gpio->pin));
+    /* trigger on rising edge of the interrupt */
+    LL_DMAMUX_SetRequestGenPolarity(NULL, LL_DMAMUX_REQ_GEN_0, LL_DMAMUX_REQ_GEN_POL_RISING);
+    /* now enable request generation again */
+    LL_DMAMUX_EnableRequestGen(NULL, LL_DMAMUX_REQ_GEN_0);
+
+    /* we need the EXTI to be configured as interrupt generating line, but no ISR registered */
+    furi_hal_gpio_init_ex(
+        signal->gpio, GpioModeInterruptRiseFall, signal->pull, GpioSpeedVeryHigh, GpioAltFnUnused);
+
+    /* capture current timer */
+    signal->pos = 0;
+    signal->timer_value = TIM2->CNT;
+    signal->gpio_mask = signal->gpio->pin;
+    signal->gpio_value = signal->gpio->port->IDR & signal->gpio_mask;
+
+    /* now set up DMA with these settings */
+    LL_DMA_Init(DMA1, signal->dma_channel, &signal->dma_config_timer);
+    LL_DMA_Init(DMA1, signal->dma_channel + 1, &signal->dma_config_gpio);
+    LL_DMA_EnableChannel(DMA1, signal->dma_channel);
+    LL_DMA_EnableChannel(DMA1, signal->dma_channel + 1);
+}
+
+uint32_t pulse_reader_receive(PulseReader* signal, int timeout_us) {
+    uint32_t start_time = DWT->CYCCNT;
+    uint32_t timeout_ticks = timeout_us * (F_TIM2 / 1000000);
+
+    do {
+        /* get the DMA's next write position by reading "remaining length" register */
+        uint32_t dma_pos =
+            signal->size - (uint32_t)LL_DMA_GetDataLength(DMA1, signal->dma_channel);
+
+        /* the DMA has advanced in the ringbuffer */
+        if(dma_pos != signal->pos) {
+            uint32_t delta = signal->timer_buffer[signal->pos] - signal->timer_value;
+            uint32_t last_gpio_value = signal->gpio_value;
+
+            signal->gpio_value = signal->gpio_buffer[signal->pos];
+
+            /* check if the GPIO really toggled. if not, we lost an edge :( */
+            if(((last_gpio_value ^ signal->gpio_value) & signal->gpio_mask) != signal->gpio_mask) {
+                signal->gpio_value ^= signal->gpio_mask;
+                return PULSE_READER_LOST_EDGE;
+            }
+            signal->timer_value = signal->timer_buffer[signal->pos];
+
+            signal->pos++;
+            signal->pos %= signal->size;
+
+            uint32_t delta_unit = 0;
+
+            /* probably larger values, so choose a wider data type */
+            if(signal->unit_divider > 1) {
+                delta_unit =
+                    (uint32_t)((uint64_t)delta * (uint64_t)signal->unit_multiplier / signal->unit_divider);
+            } else {
+                delta_unit = delta * signal->unit_multiplier;
+            }
+
+            /* if to be scaled to bit times, save a few instructions. should be faster */
+            if(signal->bit_time > 1) {
+                return (delta_unit + signal->bit_time / 2) / signal->bit_time;
+            }
+
+            return delta_unit;
+        }
+
+        /* check for timeout */
+        uint32_t elapsed = DWT->CYCCNT - start_time;
+
+        if(elapsed > timeout_ticks) {
+            return PULSE_READER_NO_EDGE;
+        }
+    } while(true);
+}
diff --git a/lib/pulse_reader/pulse_reader.h b/lib/pulse_reader/pulse_reader.h
new file mode 100644
index 000000000..08056a0ac
--- /dev/null
+++ b/lib/pulse_reader/pulse_reader.h
@@ -0,0 +1,122 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include <furi_hal_gpio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PULSE_READER_NO_EDGE 0xFFFFFFFFUL
+#define PULSE_READER_LOST_EDGE 0xFFFFFFFEUL
+#define F_TIM2 64000000UL
+
+/**
+ * unit of the edge durations to return
+ */
+typedef enum {
+    PulseReaderUnit64MHz,
+    PulseReaderUnitPicosecond,
+    PulseReaderUnitNanosecond,
+    PulseReaderUnitMicrosecond,
+} PulseReaderUnit;
+
+/* using an anonymous type */
+typedef struct PulseReader PulseReader;
+
+/** Allocate a PulseReader object
+ *
+ * Allocates memory for a ringbuffer and initalizes the object
+ *
+ * @param[in]  gpio        the GPIO to use. will get configured as input.
+ * @param[in]  size        number of edges to buffer
+ */
+PulseReader* pulse_reader_alloc(const GpioPin* gpio, uint32_t size);
+
+/** Free a PulseReader object
+ *
+ * Frees all memory of the given object
+ *
+ * @param[in]  signal      previously allocated PulseReader object.
+ */
+void pulse_reader_free(PulseReader* signal);
+
+/** Start signal capturing
+ *
+ * Initializes DMA1, TIM2 and DMAMUX_REQ_GEN_0 to automatically capture timer values.
+ * Ensure that interrupts are always enabled, as the used EXTI line is handled as one.
+ *
+ * @param[in]  signal      previously allocated PulseReader object.
+ */
+void pulse_reader_start(PulseReader* signal);
+
+/** Stop signal capturing
+ *
+ * Frees DMA1, TIM2 and DMAMUX_REQ_GEN_0
+ *
+ * @param[in]  signal      previously allocated PulseReader object.
+ */
+void pulse_reader_stop(PulseReader* signal);
+
+/** Recevie a sample from ringbuffer
+ *
+ * Waits for the specified time until a new edge gets detected.
+ * If not configured otherwise, the pulse duration will be in picosecond resolution.
+ * If a bittime was configured, the return value will contain the properly rounded
+ * number of bit times measured.
+ *
+ * @param[in]  signal      previously allocated PulseReader object.
+ * @param[in]  timeout_us  time to wait for a signal [µs]
+ *
+ * @returns the scaled value of the pulse duration
+ */
+uint32_t pulse_reader_receive(PulseReader* signal, int timeout_us);
+
+/** Get available samples
+ *
+ * Get the number of available samples in the ringbuffer
+ *
+ * @param[in]  signal  previously allocated PulseReader object.
+ *
+ * @returns the number of samples in buffer
+ */
+uint32_t pulse_reader_samples(PulseReader* signal);
+
+/** Set timebase
+ *
+ * Set the timebase to be used when returning pulse duration.
+ *
+ * @param[in]  signal  previously allocated PulseReader object.
+ * @param[in]  unit  PulseReaderUnit64MHz or PulseReaderUnitPicosecond
+ */
+void pulse_reader_set_timebase(PulseReader* signal, PulseReaderUnit unit);
+
+/** Set bit time
+ *
+ * Set the number of timebase units per bit.
+ * When set, the pulse_reader_receive() will return an already rounded
+ * bit count value instead of the raw duration.
+ *
+ * Set to 1 to return duration again.
+ *
+ * @param[in]  signal    previously allocated PulseReader object.
+ * @param[in]  bit_time
+ */
+void pulse_reader_set_bittime(PulseReader* signal, uint32_t bit_time);
+
+/** Set GPIO pull direction
+ *
+ * Some GPIOs need pulldown, others don't. By default the
+ * pull direction is GpioPullNo.
+ *
+ * @param[in]  signal    previously allocated PulseReader object.
+ * @param[in]  pull      GPIO pull direction
+ */
+void pulse_reader_set_pull(PulseReader* signal, GpioPull pull);
+
+#ifdef __cplusplus
+}
+#endif