 0652830c51
			
		
	
	
		0652830c51
		
			
		
	
	
	
	
		
			
			* WS: add protocol Ambient_Weather * WS: fix link * WS: removing unused code Co-authored-by: あく <alleteam@gmail.com>
		
			
				
	
	
		
			308 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			308 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #include "acurite_592txr.h"
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| 
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| #define TAG "WSProtocolAcurite_592TXR"
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| 
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| /*
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|  * Help
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|  * https://github.com/merbanan/rtl_433/blob/master/src/devices/acurite.c
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|  * 
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|  * Acurite 592TXR Temperature Humidity sensor decoder
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|  * Message Type 0x04, 7 bytes
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|  * | Byte 0    | Byte 1    | Byte 2    | Byte 3    | Byte 4    | Byte 5    | Byte 6    |
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|  * | --------- | --------- | --------- | --------- | --------- | --------- | --------- |
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|  * | CCII IIII | IIII IIII | pB00 0100 | pHHH HHHH | p??T TTTT | pTTT TTTT | KKKK KKKK |
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|  * - C: Channel 00: C, 10: B, 11: A, (01 is invalid)
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|  * - I: Device ID (14 bits)
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|  * - B: Battery, 1 is battery OK, 0 is battery low
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|  * - M: Message type (6 bits), 0x04
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|  * - T: Temperature Celsius (11 - 14 bits?), + 1000 * 10
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|  * - H: Relative Humidity (%) (7 bits)
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|  * - K: Checksum (8 bits)
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|  * - p: Parity bit
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|  * Notes:
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|  * - Temperature
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|  *   - Encoded as Celsius + 1000 * 10
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|  *   - only 11 bits needed for specified range -40 C to 70 C (-40 F - 158 F)
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|  *   - However 14 bits available for temperature, giving possible range of -100 C to 1538.4 C
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|  *   - @todo - check if high 3 bits ever used for anything else
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|  * 
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|  */
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| 
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| static const SubGhzBlockConst ws_protocol_acurite_592txr_const = {
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|     .te_short = 200,
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|     .te_long = 400,
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|     .te_delta = 90,
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|     .min_count_bit_for_found = 56,
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| };
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| 
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| struct WSProtocolDecoderAcurite_592TXR {
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|     SubGhzProtocolDecoderBase base;
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| 
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|     SubGhzBlockDecoder decoder;
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|     WSBlockGeneric generic;
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| 
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|     uint16_t header_count;
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| };
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| 
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| struct WSProtocolEncoderAcurite_592TXR {
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|     SubGhzProtocolEncoderBase base;
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| 
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|     SubGhzProtocolBlockEncoder encoder;
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|     WSBlockGeneric generic;
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| };
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| 
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| typedef enum {
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|     Acurite_592TXRDecoderStepReset = 0,
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|     Acurite_592TXRDecoderStepCheckPreambule,
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|     Acurite_592TXRDecoderStepSaveDuration,
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|     Acurite_592TXRDecoderStepCheckDuration,
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| } Acurite_592TXRDecoderStep;
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| 
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| const SubGhzProtocolDecoder ws_protocol_acurite_592txr_decoder = {
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|     .alloc = ws_protocol_decoder_acurite_592txr_alloc,
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|     .free = ws_protocol_decoder_acurite_592txr_free,
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| 
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|     .feed = ws_protocol_decoder_acurite_592txr_feed,
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|     .reset = ws_protocol_decoder_acurite_592txr_reset,
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| 
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|     .get_hash_data = ws_protocol_decoder_acurite_592txr_get_hash_data,
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|     .serialize = ws_protocol_decoder_acurite_592txr_serialize,
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|     .deserialize = ws_protocol_decoder_acurite_592txr_deserialize,
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|     .get_string = ws_protocol_decoder_acurite_592txr_get_string,
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| };
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| 
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| const SubGhzProtocolEncoder ws_protocol_acurite_592txr_encoder = {
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|     .alloc = NULL,
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|     .free = NULL,
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| 
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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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| 
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| const SubGhzProtocol ws_protocol_acurite_592txr = {
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|     .name = WS_PROTOCOL_ACURITE_592TXR_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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| 
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|     .decoder = &ws_protocol_acurite_592txr_decoder,
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|     .encoder = &ws_protocol_acurite_592txr_encoder,
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| };
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| 
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| void* ws_protocol_decoder_acurite_592txr_alloc(SubGhzEnvironment* environment) {
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|     UNUSED(environment);
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|     WSProtocolDecoderAcurite_592TXR* instance = malloc(sizeof(WSProtocolDecoderAcurite_592TXR));
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|     instance->base.protocol = &ws_protocol_acurite_592txr;
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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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| 
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| void ws_protocol_decoder_acurite_592txr_free(void* context) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* instance = context;
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|     free(instance);
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| }
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| 
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| void ws_protocol_decoder_acurite_592txr_reset(void* context) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* instance = context;
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|     instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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| }
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| 
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| static bool ws_protocol_acurite_592txr_check_crc(WSProtocolDecoderAcurite_592TXR* instance) {
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|     uint8_t msg[] = {
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|         instance->decoder.decode_data >> 48,
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|         instance->decoder.decode_data >> 40,
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|         instance->decoder.decode_data >> 32,
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|         instance->decoder.decode_data >> 24,
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|         instance->decoder.decode_data >> 16,
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|         instance->decoder.decode_data >> 8};
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| 
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|     if((subghz_protocol_blocks_add_bytes(msg, 6) ==
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|         (uint8_t)(instance->decoder.decode_data & 0xFF)) &&
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|        (!subghz_protocol_blocks_parity_bytes(&msg[2], 4))) {
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|         return true;
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|     } else {
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|         return false;
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|     }
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| }
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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_acurite_592txr_remote_controller(WSBlockGeneric* instance) {
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|     uint8_t channel[] = {3, 0, 2, 1};
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|     uint8_t channel_raw = ((instance->data >> 54) & 0x03);
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|     instance->channel = channel[channel_raw];
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|     instance->id = (instance->data >> 40) & 0x3FFF;
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|     instance->battery_low = !((instance->data >> 38) & 1);
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|     instance->humidity = (instance->data >> 24) & 0x7F;
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| 
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|     uint16_t temp_raw = ((instance->data >> 9) & 0xF80) | ((instance->data >> 8) & 0x7F);
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|     instance->temp = ((float)(temp_raw)-1000) / 10.0f;
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| 
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|     instance->btn = WS_NO_BTN;
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| }
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| 
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| void ws_protocol_decoder_acurite_592txr_feed(void* context, bool level, uint32_t duration) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* instance = context;
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| 
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|     switch(instance->decoder.parser_step) {
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|     case Acurite_592TXRDecoderStepReset:
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|         if((level) && (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_short * 3) <
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|                        ws_protocol_acurite_592txr_const.te_delta * 2)) {
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|             instance->decoder.parser_step = Acurite_592TXRDecoderStepCheckPreambule;
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|             instance->decoder.te_last = duration;
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|             instance->header_count = 0;
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|         }
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|         break;
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| 
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|     case Acurite_592TXRDecoderStepCheckPreambule:
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|         if(level) {
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|             instance->decoder.te_last = duration;
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|         } else {
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|             if((DURATION_DIFF(
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|                     instance->decoder.te_last, ws_protocol_acurite_592txr_const.te_short * 3) <
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|                 ws_protocol_acurite_592txr_const.te_delta * 2) &&
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|                (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_short * 3) <
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|                 ws_protocol_acurite_592txr_const.te_delta * 2)) {
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|                 //Found preambule
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|                 instance->header_count++;
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|             } else if((instance->header_count > 2) && (instance->header_count < 5)) {
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|                 if((DURATION_DIFF(
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|                         instance->decoder.te_last, ws_protocol_acurite_592txr_const.te_short) <
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|                     ws_protocol_acurite_592txr_const.te_delta) &&
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|                    (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_long) <
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|                     ws_protocol_acurite_592txr_const.te_delta)) {
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|                     instance->decoder.decode_data = 0;
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|                     instance->decoder.decode_count_bit = 0;
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|                     subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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|                     instance->decoder.parser_step = Acurite_592TXRDecoderStepSaveDuration;
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|                 } else if(
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|                     (DURATION_DIFF(
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|                          instance->decoder.te_last, ws_protocol_acurite_592txr_const.te_long) <
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|                      ws_protocol_acurite_592txr_const.te_delta) &&
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|                     (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_short) <
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|                      ws_protocol_acurite_592txr_const.te_delta)) {
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|                     instance->decoder.decode_data = 0;
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|                     instance->decoder.decode_count_bit = 0;
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|                     subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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|                     instance->decoder.parser_step = Acurite_592TXRDecoderStepSaveDuration;
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|                 } else {
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|                     instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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|                 }
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|             } else {
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|                 instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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|             }
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|         }
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|         break;
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| 
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|     case Acurite_592TXRDecoderStepSaveDuration:
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|         if(level) {
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|             instance->decoder.te_last = duration;
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|             instance->decoder.parser_step = Acurite_592TXRDecoderStepCheckDuration;
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|         } else {
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|             instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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|         }
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|         break;
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| 
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|     case Acurite_592TXRDecoderStepCheckDuration:
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|         if(!level) {
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|             if(duration >= ((uint32_t)ws_protocol_acurite_592txr_const.te_short * 5)) {
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|                 if((instance->decoder.decode_count_bit ==
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|                     ws_protocol_acurite_592txr_const.min_count_bit_for_found) &&
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|                    ws_protocol_acurite_592txr_check_crc(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_acurite_592txr_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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|                 }
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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 = Acurite_592TXRDecoderStepReset;
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|                 break;
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|             } else if(
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|                 (DURATION_DIFF(
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|                      instance->decoder.te_last, ws_protocol_acurite_592txr_const.te_short) <
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|                  ws_protocol_acurite_592txr_const.te_delta) &&
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|                 (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_long) <
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|                  ws_protocol_acurite_592txr_const.te_delta)) {
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|                 subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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|                 instance->decoder.parser_step = Acurite_592TXRDecoderStepSaveDuration;
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|             } else if(
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|                 (DURATION_DIFF(
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|                      instance->decoder.te_last, ws_protocol_acurite_592txr_const.te_long) <
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|                  ws_protocol_acurite_592txr_const.te_delta) &&
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|                 (DURATION_DIFF(duration, ws_protocol_acurite_592txr_const.te_short) <
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|                  ws_protocol_acurite_592txr_const.te_delta)) {
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|                 subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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|                 instance->decoder.parser_step = Acurite_592TXRDecoderStepSaveDuration;
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|             } else {
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|                 instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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|             }
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|         } else {
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|             instance->decoder.parser_step = Acurite_592TXRDecoderStepReset;
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|         }
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|         break;
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|     }
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| }
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| 
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| uint8_t ws_protocol_decoder_acurite_592txr_get_hash_data(void* context) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* 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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| 
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| bool ws_protocol_decoder_acurite_592txr_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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|     WSProtocolDecoderAcurite_592TXR* instance = context;
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|     return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
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| }
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| 
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| bool ws_protocol_decoder_acurite_592txr_deserialize(void* context, FlipperFormat* flipper_format) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* 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_acurite_592txr_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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| 
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| void ws_protocol_decoder_acurite_592txr_get_string(void* context, FuriString* output) {
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|     furi_assert(context);
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|     WSProtocolDecoderAcurite_592TXR* 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:%d.%d 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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|         (int16_t)instance->generic.temp,
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|         abs(((int16_t)(instance->generic.temp * 10) - (((int16_t)instance->generic.temp) * 10))),
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|         instance->generic.humidity);
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| }
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