flipperzero-firmware/applications/external/weather_station/protocols/auriol_hg0601a.c

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#include "auriol_hg0601a.h"
#define TAG "WSProtocolAuriol_TH"
/*
*
Auriol HG06061A-DCF-TX sensor.
Data layout:
DDDDDDDD-B0-NN-TT-TTTTTTTTTT-CCCC-HHHHHHHH
Exmpl.: 11110100-10-01-00-0001001100-1111-01011101
- D: id, 8 bit
- B: where B is the battery status: 1=OK, 0=LOW, 1 bit
- 0: just zero :)
- N: NN is the channel: 00=CH1, 01=CH2, 11=CH3, 2bit
- T: temperature, 12 bit: 2's complement, scaled by 10
- C: 4 bit: seems to be 0xf constantly, a separator between temp and humidity
- H: humidity sensor, humidity is 8 bits
* The sensor sends 37 bits 10 times,
* the packets are ppm modulated (distance coding) with a pulse of ~500 us
* followed by a short gap of ~1000 us for a 0 bit or a long ~2000 us gap for a
* 1 bit, the sync gap is ~4000 us.
*
*/
#define AURIOL_TH_CONST_DATA 0b1110
static const SubGhzBlockConst ws_protocol_auriol_th_const = {
.te_short = 500,
.te_long = 2000,
.te_delta = 150,
.min_count_bit_for_found = 37,
};
struct WSProtocolDecoderAuriol_TH {
SubGhzProtocolDecoderBase base;
SubGhzBlockDecoder decoder;
WSBlockGeneric generic;
};
struct WSProtocolEncoderAuriol_TH {
SubGhzProtocolEncoderBase base;
SubGhzProtocolBlockEncoder encoder;
WSBlockGeneric generic;
};
typedef enum {
auriol_THDecoderStepReset = 0,
auriol_THDecoderStepSaveDuration,
auriol_THDecoderStepCheckDuration,
} auriol_THDecoderStep;
const SubGhzProtocolDecoder ws_protocol_auriol_th_decoder = {
.alloc = ws_protocol_decoder_auriol_th_alloc,
.free = ws_protocol_decoder_auriol_th_free,
.feed = ws_protocol_decoder_auriol_th_feed,
.reset = ws_protocol_decoder_auriol_th_reset,
.get_hash_data = ws_protocol_decoder_auriol_th_get_hash_data,
.serialize = ws_protocol_decoder_auriol_th_serialize,
.deserialize = ws_protocol_decoder_auriol_th_deserialize,
.get_string = ws_protocol_decoder_auriol_th_get_string,
};
const SubGhzProtocolEncoder ws_protocol_auriol_th_encoder = {
.alloc = NULL,
.free = NULL,
.deserialize = NULL,
.stop = NULL,
.yield = NULL,
};
const SubGhzProtocol ws_protocol_auriol_th = {
.name = WS_PROTOCOL_AURIOL_TH_NAME,
.type = SubGhzProtocolWeatherStation,
.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_315 | SubGhzProtocolFlag_868 |
SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable,
.decoder = &ws_protocol_auriol_th_decoder,
.encoder = &ws_protocol_auriol_th_encoder,
};
void* ws_protocol_decoder_auriol_th_alloc(SubGhzEnvironment* environment) {
UNUSED(environment);
WSProtocolDecoderAuriol_TH* instance = malloc(sizeof(WSProtocolDecoderAuriol_TH));
instance->base.protocol = &ws_protocol_auriol_th;
instance->generic.protocol_name = instance->base.protocol->name;
return instance;
}
void ws_protocol_decoder_auriol_th_free(void* context) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
free(instance);
}
void ws_protocol_decoder_auriol_th_reset(void* context) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
instance->decoder.parser_step = auriol_THDecoderStepReset;
}
static bool ws_protocol_auriol_th_check(WSProtocolDecoderAuriol_TH* instance) {
uint8_t type = (instance->decoder.decode_data >> 8) & 0x0F;
if((type == AURIOL_TH_CONST_DATA) && ((instance->decoder.decode_data >> 4) != 0xffffffff)) {
return true;
} else {
return false;
}
return true;
}
/**
* Analysis of received data
* @param instance Pointer to a WSBlockGeneric* instance
*/
static void ws_protocol_auriol_th_remote_controller(WSBlockGeneric* instance) {
instance->id = (instance->data >> 31) & 0xFF;
instance->battery_low = ((instance->data >> 30) & 1);
instance->channel = ((instance->data >> 25) & 0x03) + 1;
instance->btn = WS_NO_BTN;
if(!((instance->data >> 23) & 1)) {
instance->temp = (float)((instance->data >> 13) & 0x07FF) / 10.0f;
} else {
instance->temp = (float)((~(instance->data >> 13) & 0x07FF) + 1) / -10.0f;
}
instance->humidity = (instance->data >> 1) & 0x7F;
}
void ws_protocol_decoder_auriol_th_feed(void* context, bool level, uint32_t duration) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
switch(instance->decoder.parser_step) {
case auriol_THDecoderStepReset:
if((!level) && (DURATION_DIFF(duration, ws_protocol_auriol_th_const.te_short * 8) <
ws_protocol_auriol_th_const.te_delta)) {
//Found sync
instance->decoder.parser_step = auriol_THDecoderStepSaveDuration;
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
}
break;
case auriol_THDecoderStepSaveDuration:
if(level) {
instance->decoder.te_last = duration;
instance->decoder.parser_step = auriol_THDecoderStepCheckDuration;
} else {
instance->decoder.parser_step = auriol_THDecoderStepReset;
}
break;
case auriol_THDecoderStepCheckDuration:
if(!level) {
if(DURATION_DIFF(duration, ws_protocol_auriol_th_const.te_short * 8) <
ws_protocol_auriol_th_const.te_delta) {
//Found sync
instance->decoder.parser_step = auriol_THDecoderStepReset;
if((instance->decoder.decode_count_bit ==
ws_protocol_auriol_th_const.min_count_bit_for_found) &&
ws_protocol_auriol_th_check(instance)) {
instance->generic.data = instance->decoder.decode_data;
instance->generic.data_count_bit = instance->decoder.decode_count_bit;
ws_protocol_auriol_th_remote_controller(&instance->generic);
if(instance->base.callback)
instance->base.callback(&instance->base, instance->base.context);
instance->decoder.parser_step = auriol_THDecoderStepCheckDuration;
}
instance->decoder.decode_data = 0;
instance->decoder.decode_count_bit = 0;
break;
} else if(
(DURATION_DIFF(instance->decoder.te_last, ws_protocol_auriol_th_const.te_short) <
ws_protocol_auriol_th_const.te_delta) &&
(DURATION_DIFF(duration, ws_protocol_auriol_th_const.te_short * 2) <
ws_protocol_auriol_th_const.te_delta)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 0);
instance->decoder.parser_step = auriol_THDecoderStepSaveDuration;
} else if(
(DURATION_DIFF(instance->decoder.te_last, ws_protocol_auriol_th_const.te_short) <
ws_protocol_auriol_th_const.te_delta) &&
(DURATION_DIFF(duration, ws_protocol_auriol_th_const.te_short * 4) <
ws_protocol_auriol_th_const.te_delta * 2)) {
subghz_protocol_blocks_add_bit(&instance->decoder, 1);
instance->decoder.parser_step = auriol_THDecoderStepSaveDuration;
} else {
instance->decoder.parser_step = auriol_THDecoderStepReset;
}
} else {
instance->decoder.parser_step = auriol_THDecoderStepReset;
}
break;
}
}
uint8_t ws_protocol_decoder_auriol_th_get_hash_data(void* context) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
return subghz_protocol_blocks_get_hash_data(
&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
}
SubGhzProtocolStatus ws_protocol_decoder_auriol_th_serialize(
void* context,
FlipperFormat* flipper_format,
SubGhzRadioPreset* preset) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
return ws_block_generic_serialize(&instance->generic, flipper_format, preset);
}
SubGhzProtocolStatus
ws_protocol_decoder_auriol_th_deserialize(void* context, FlipperFormat* flipper_format) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
return ws_block_generic_deserialize_check_count_bit(
&instance->generic, flipper_format, ws_protocol_auriol_th_const.min_count_bit_for_found);
}
void ws_protocol_decoder_auriol_th_get_string(void* context, FuriString* output) {
furi_assert(context);
WSProtocolDecoderAuriol_TH* instance = context;
furi_string_printf(
output,
"%s %dbit\r\n"
"Key:0x%lX%08lX\r\n"
"Sn:0x%lX Ch:%d Bat:%d\r\n"
"Temp:%3.1f C Hum:%d%%",
instance->generic.protocol_name,
instance->generic.data_count_bit,
(uint32_t)(instance->generic.data >> 32),
(uint32_t)(instance->generic.data),
instance->generic.id,
instance->generic.channel,
instance->generic.battery_low,
(double)instance->generic.temp,
instance->generic.humidity);
}