mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-24 05:23:06 +00:00
265 lines
9.8 KiB
C
265 lines
9.8 KiB
C
#include "gt_wt_02.h"
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#define TAG "WSProtocolGT_WT02"
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/*
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* Help
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* https://github.com/merbanan/rtl_433/blob/master/src/devices/gt_wt_02.c
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*
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* GT-WT-02 sensor on 433.92MHz.
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* Example and frame description provided by https://github.com/ludwich66
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* [01] {37} 34 00 ed 47 60 : 00110100 00000000 11101101 01000111 01100000
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* code, BatOK,not-man-send, Channel1, +23,7°C, 35%
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* [01] {37} 34 8f 87 15 90 : 00110100 10001111 10000111 00010101 10010000
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* code, BatOK,not-man-send, Channel1,-12,1°C, 10%
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* Humidity:
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* - the working range is 20-90 %
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* - if "LL" in display view it sends 10 %
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* - if "HH" in display view it sends 110%
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* SENSOR: GT-WT-02 (ALDI Globaltronics..)
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* TYP IIIIIIII BMCCTTTT TTTTTTTT HHHHHHHX XXXXX
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* TYPE Description:
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* - I = Random Device Code, changes with battery reset
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* - B = Battery 0=OK 1=LOW
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* - M = Manual Send Button Pressed 0=not pressed 1=pressed
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* - C = Channel 00=CH1, 01=CH2, 10=CH3
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* - T = Temperature, 12 Bit 2's complement, scaled by 10
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* - H = Humidity = 7 Bit bin2dez 00-99, Display LL=10%, Display HH=110% (Range 20-90%)
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* - X = Checksum, sum modulo 64
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* A Lidl AURIO (from 12/2018) with PCB marking YJ-T12 V02 has two extra bits in front.
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*
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*/
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static const SubGhzBlockConst ws_protocol_gt_wt_02_const = {
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.te_short = 500,
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.te_long = 2000,
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.te_delta = 150,
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.min_count_bit_for_found = 37,
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};
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struct WSProtocolDecoderGT_WT02 {
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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 WSProtocolEncoderGT_WT02 {
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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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typedef enum {
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GT_WT02DecoderStepReset = 0,
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GT_WT02DecoderStepSaveDuration,
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GT_WT02DecoderStepCheckDuration,
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} GT_WT02DecoderStep;
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const SubGhzProtocolDecoder ws_protocol_gt_wt_02_decoder = {
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.alloc = ws_protocol_decoder_gt_wt_02_alloc,
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.free = ws_protocol_decoder_gt_wt_02_free,
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.feed = ws_protocol_decoder_gt_wt_02_feed,
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.reset = ws_protocol_decoder_gt_wt_02_reset,
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.get_hash_data = ws_protocol_decoder_gt_wt_02_get_hash_data,
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.serialize = ws_protocol_decoder_gt_wt_02_serialize,
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.deserialize = ws_protocol_decoder_gt_wt_02_deserialize,
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.get_string = ws_protocol_decoder_gt_wt_02_get_string,
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};
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const SubGhzProtocolEncoder ws_protocol_gt_wt_02_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_gt_wt_02 = {
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.name = WS_PROTOCOL_GT_WT_02_NAME,
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.type = SubGhzProtocolWeatherStation,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
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SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
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.decoder = &ws_protocol_gt_wt_02_decoder,
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.encoder = &ws_protocol_gt_wt_02_encoder,
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};
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void* ws_protocol_decoder_gt_wt_02_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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WSProtocolDecoderGT_WT02* instance = malloc(sizeof(WSProtocolDecoderGT_WT02));
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instance->base.protocol = &ws_protocol_gt_wt_02;
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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_gt_wt_02_free(void* context) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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free(instance);
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}
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void ws_protocol_decoder_gt_wt_02_reset(void* context) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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}
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static bool ws_protocol_gt_wt_02_check(WSProtocolDecoderGT_WT02* instance) {
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if(!instance->decoder.decode_data) return false;
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uint8_t sum = (instance->decoder.decode_data >> 5) & 0xe;
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uint64_t temp_data = instance->decoder.decode_data >> 9;
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for(uint8_t i = 0; i < 7; i++) {
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sum += (temp_data >> (i * 4)) & 0xF;
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}
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return ((uint8_t)(instance->decoder.decode_data & 0x3F) == (sum & 0x3F));
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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_gt_wt_02_remote_controller(WSBlockGeneric* instance) {
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instance->id = (instance->data >> 29) & 0xFF;
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instance->battery_low = (instance->data >> 28) & 1;
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instance->btn = (instance->data >> 27) & 1;
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instance->channel = ((instance->data >> 25) & 0x3) + 1;
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if(!((instance->data >> 24) & 1)) {
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instance->temp = (float)((instance->data >> 13) & 0x07FF) / 10.0f;
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} else {
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instance->temp = (float)((~(instance->data >> 13) & 0x07FF) + 1) / -10.0f;
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}
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instance->humidity = (instance->data >> 6) & 0x7F;
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if(instance->humidity <= 10) // actually the sensors sends 10 below working range of 20%
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instance->humidity = 0;
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else if(instance->humidity > 90) // actually the sensors sends 110 above working range of 90%
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instance->humidity = 100;
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}
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void ws_protocol_decoder_gt_wt_02_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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switch(instance->decoder.parser_step) {
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case GT_WT02DecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, ws_protocol_gt_wt_02_const.te_short * 18) <
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ws_protocol_gt_wt_02_const.te_delta * 8)) {
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//Found syncPrefix
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instance->decoder.parser_step = GT_WT02DecoderStepSaveDuration;
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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 GT_WT02DecoderStepSaveDuration:
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if(level) {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = GT_WT02DecoderStepCheckDuration;
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} else {
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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}
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break;
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case GT_WT02DecoderStepCheckDuration:
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if(!level) {
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if(DURATION_DIFF(instance->decoder.te_last, ws_protocol_gt_wt_02_const.te_short) <
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ws_protocol_gt_wt_02_const.te_delta) {
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if(DURATION_DIFF(duration, ws_protocol_gt_wt_02_const.te_short * 18) <
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ws_protocol_gt_wt_02_const.te_delta * 8) {
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//Found syncPostfix
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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if((instance->decoder.decode_count_bit ==
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ws_protocol_gt_wt_02_const.min_count_bit_for_found) &&
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ws_protocol_gt_wt_02_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_gt_wt_02_remote_controller(&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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} else if(instance->decoder.decode_count_bit == 1) {
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instance->decoder.parser_step = GT_WT02DecoderStepSaveDuration;
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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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} else if(
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DURATION_DIFF(duration, ws_protocol_gt_wt_02_const.te_long) <
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ws_protocol_gt_wt_02_const.te_delta * 2) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = GT_WT02DecoderStepSaveDuration;
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} else if(
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DURATION_DIFF(duration, ws_protocol_gt_wt_02_const.te_long * 2) <
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ws_protocol_gt_wt_02_const.te_delta * 4) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = GT_WT02DecoderStepSaveDuration;
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} else {
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = GT_WT02DecoderStepReset;
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}
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break;
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}
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}
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uint8_t ws_protocol_decoder_gt_wt_02_get_hash_data(void* context) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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return subghz_protocol_blocks_get_hash_data(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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bool ws_protocol_decoder_gt_wt_02_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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WSProtocolDecoderGT_WT02* instance = context;
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return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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bool ws_protocol_decoder_gt_wt_02_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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bool ret = false;
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do {
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if(!ws_block_generic_deserialize(&instance->generic, flipper_format)) {
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break;
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}
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if(instance->generic.data_count_bit !=
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ws_protocol_gt_wt_02_const.min_count_bit_for_found) {
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FURI_LOG_E(TAG, "Wrong number of bits in key");
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break;
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}
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ret = true;
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} while(false);
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return ret;
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}
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void ws_protocol_decoder_gt_wt_02_get_string(void* context, FuriString* output) {
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furi_assert(context);
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WSProtocolDecoderGT_WT02* instance = context;
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furi_string_printf(
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output,
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"%s %dbit\r\n"
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"Key:0x%lX%08lX\r\n"
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"Sn:0x%lX Ch:%d Bat:%d\r\n"
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"Temp:%3.1f C Hum:%d%%",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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(uint32_t)(instance->generic.data >> 32),
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(uint32_t)(instance->generic.data),
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instance->generic.id,
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instance->generic.channel,
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instance->generic.battery_low,
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(double)instance->generic.temp,
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instance->generic.humidity);
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}
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