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https://github.com/merbanan/rtl_433.git
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Add CRC to Hideki
This commit is contained in:
Christian W. Zuckschwerdt
@@ -1,121 +1,178 @@
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/* Hideki Temperature, Humidity, Wind, Rain sensor
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*
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* The received bits are inverted.
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* Every 8 bits are stuffed with a (even) parity bit.
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* The payload (excluding the header) has an byte parity (XOR) check
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* The payload (excluding the header) has CRC-8, poly 0x07 init 0x00 check
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* The payload bytes are reflected (LSB first / LSB last) after the CRC check
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*
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* 11111001 0 11110101 0 01110011 1 01111010 1 11001100 0 01000011 1 01000110 1 00111111 0 00001001 0 00010111 0
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* SYNC+HEAD P RC cha P LEN P Nr.? P .1° 1° P 10° BV P 1% 10% P ? P XOR P CRC P
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*
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* TS04:
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* 00000000 11111111 22222222 33333333 44444444 55555555 66666666 77777777 88888888 99999999
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* SYNC+HEAD cha RC LEN Nr.? 1° .1° VB 10° 10% 1% ? XOR CRC
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*
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* Wind:
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* 00000000 11111111 22222222 33333333 44444444 55555555 66666666 77777777 88888888 99999999 AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD
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* SYNC+HEAD cha RC LEN Nr.? 1° .1° VB 10° 1° .1° VB 10° 1W .1W .1G 10W 10G 1G w° AA XOR CRC
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*
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* Rain:
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* 00000000 11111111 22222222 33333333 44444444 55555555 66666666 77777777 88888888
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* SYNC+HEAD cha RC B LEN Nr.? RAIN_L RAIN_H 0x66 XOR CRC
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*
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*/
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#include "decoder.h"
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#define HIDEKI_MAX_BYTES_PER_ROW 14
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// 11111001 0 11110101 0 01110011 1 01111010 1 11001100 0 01000011 1 01000110 1 00111111 0 00001001 0 00010111 0
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// SYNC+HEAD P RC cha P P Nr.? P .1° 1° P 10° BV P 1% 10% P ????SYNC -------Check?------- P
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//TS04:
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// 00000000 11111111 22222222 33333333 44444444 55555555 66666666 77777777 88888888 99999999
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// SYNC+HEAD cha RC Nr.? 1° .1° VB 10° 10% 1% SYNC???? -----Check?------
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//Wind:
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// 00000000 11111111 22222222 33333333 44444444 55555555 66666666 77777777 88888888 99999999 AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD
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// SYNC+HEAD cha RC Nr.? 1° .1° VB 10° 1° .1° VB 10° .1mh 1mh ?? 10mh ???? w° ?? ???? ????
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enum sensortypes { HIDEKI_UNKNOWN, HIDEKI_TEMP, HIDEKI_TS04, HIDEKI_WIND, HIDEKI_RAIN };
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static int hideki_ts04_callback(r_device *decoder, bitbuffer_t *bitbuffer) {
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data_t *data;
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uint8_t *b = bitbuffer->bb[0]; // TODO: handle the 3 row, need change in PULSE_CLOCK decoding
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uint8_t packet[HIDEKI_MAX_BYTES_PER_ROW];
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int sensortype = HIDEKI_WIND; // default for 14 valid bytes
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uint8_t channel, humidity, rc, battery_ok;
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int temp, wind_strength, wind_direction, rain_units;
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int sensortype, chk;
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int channel, rc, battery_ok;
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int temp, humidity, rain_units;
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int wind_strength, gust_speed, wind_direction;
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// Transform incoming data:
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// * reverse MSB/LSB
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// * invert all bits
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// * Remove (and check) parity bit
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// TODO this may be factorise as a bitbuffer method (as for bitbuffer_manchester_decode)
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for (int i = 0; i < HIDEKI_MAX_BYTES_PER_ROW; i++) {
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// Expect 8, 9, 10, or 14 unstuffed bytes
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int unstuffed_len = bitbuffer->bits_per_row[0] / 9;
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if (unstuffed_len == 14)
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sensortype = HIDEKI_WIND;
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else if (unstuffed_len == 10)
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sensortype = HIDEKI_TS04;
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else if (unstuffed_len == 9)
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sensortype = HIDEKI_RAIN;
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else if (unstuffed_len == 8)
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sensortype = HIDEKI_TEMP;
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else
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return 0;
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// Invert all bits
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bitbuffer_invert(bitbuffer);
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// Strip (unstuff) and check parity bit
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// TODO: refactor to util function
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for (int i = 0; i < unstuffed_len; ++i) {
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unsigned int offset = i/8;
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packet[i] = (b[i+offset] << (i%8)) | (b[i+offset+1] >> (8 - i%8));
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packet[i] = reverse8(packet[i]); // reverse LSB first to LSB last
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packet[i] ^= 0xFF; // invert bits
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// check parity
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uint8_t parity = ((b[i+offset+1] >> (7 - i%8)) ^ 0xFF) & 0x01;
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if (parity != byteParity(packet[i]))
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{
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if (i == 10) {
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sensortype = HIDEKI_TS04;
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break;
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}
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if (i == 9) {
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sensortype = HIDEKI_RAIN;
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break;
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}
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if (i == 8) {
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sensortype = HIDEKI_TEMP;
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break;
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}
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uint8_t parity = (b[i+offset+1] >> (7 - i%8)) & 1;
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if (parity != byteParity(packet[i])) {
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if (decoder->verbose)
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fprintf(stderr, "%s: Parity error at %d\n", __func__, i);
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return 0;
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}
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}
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// Read data
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// XOR check all bytes
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chk = 0;
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for (int i = 1; i < unstuffed_len - 1; ++i) {
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chk ^= packet[i];
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}
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if (chk) {
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if (decoder->verbose)
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fprintf(stderr, "%s: XOR error\n", __func__);
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return 0;
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}
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// CRC-8 poly=0x07 init=0x00
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if (crc8(&packet[1], unstuffed_len - 1, 0x07, 0x00)) {
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if (decoder->verbose)
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fprintf(stderr, "%s: CRC error\n", __func__);
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return 0;
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}
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// Reflect LSB first to LSB last
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for (int i = 0; i < unstuffed_len; ++i)
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packet[i] = reverse8(packet[i]);
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// Parse data
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if (packet[0] != 0x9f) // NOTE: other valid ids might exist
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return 0;
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int pkt_len = (packet[2] >> 1) & 0x1f;
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int pkt_seq = packet[3] >> 6;
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int pkt_type = packet[3] & 0x1f;
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// 0x0C Anemometer
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// 0x0D UV sensor
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// 0x0E Rain level meter
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// 0x1E Thermo/hygro-sensor
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if (pkt_len +3 != unstuffed_len) {
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if (decoder->verbose)
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fprintf(stderr, "%s: LEN error\n", __func__);
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return 0;
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}
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channel = (packet[1] >> 5) & 0x0F;
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if (channel >= 5) channel -= 1;
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rc = packet[1] & 0x0F;
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temp = (packet[5] & 0x0F) * 100 + ((packet[4] & 0xF0) >> 4) * 10 + (packet[4] & 0x0F);
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if (((packet[5]>>7) & 0x01) == 0) {
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if (((packet[5]>>7) & 1) == 0) {
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temp = -temp;
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}
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battery_ok = (packet[5]>>6) & 0x01;
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battery_ok = (packet[5]>>6) & 1;
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if (sensortype == HIDEKI_TS04) {
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humidity = ((packet[6] & 0xF0) >> 4) * 10 + (packet[6] & 0x0F);
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data = data_make(
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"model", "", DATA_STRING, "HIDEKI TS04 sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp/10.f,
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"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
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NULL);
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"model", "", DATA_STRING, "HIDEKI TS04 sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp/10.f,
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"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
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"mic", "MIC", DATA_STRING, "CRC",
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NULL);
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decoder_output_data(decoder, data);
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return 1;
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}
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if (sensortype == HIDEKI_WIND) {
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const uint8_t wd[] = { 0, 15, 13, 14, 9, 10, 12, 11, 1, 2, 4, 3, 8, 7, 5, 6 };
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wind_direction = wd[((packet[11] & 0xF0) >> 4)] * 225;
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wind_strength = (packet[9] & 0x0F) * 100 + ((packet[8] & 0xF0) >> 4) * 10 + (packet[8] & 0x0F);
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wind_strength = (packet[9] & 0x0F) * 100 + (packet[8] >> 4) * 10 + (packet[8] & 0x0F);
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data = data_make(
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"model", "", DATA_STRING, "HIDEKI Wind sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp/10.f,
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"windstrength", "Wind Strength", DATA_FORMAT, "%.02f km/h", DATA_DOUBLE, wind_strength*0.160934f,
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"winddirection", "Direction", DATA_FORMAT, "%.01f °", DATA_DOUBLE, wind_direction/10.f,
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NULL);
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"model", "", DATA_STRING, "HIDEKI Wind sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp * 0.1f,
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"windstrength", "Wind Strength", DATA_FORMAT, "%.02f km/h", DATA_DOUBLE, wind_strength * 0.160934f,
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"winddirection", "Direction", DATA_FORMAT, "%.01f °", DATA_DOUBLE, wind_direction * 0.1f,
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"mic", "MIC", DATA_STRING, "CRC",
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NULL);
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decoder_output_data(decoder, data);
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return 1;
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}
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if (sensortype == HIDEKI_TEMP) {
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data = data_make(
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"model", "", DATA_STRING, "HIDEKI Temperature sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp/10.f,
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NULL);
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"model", "", DATA_STRING, "HIDEKI Temperature sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"temperature_C", "Temperature", DATA_FORMAT, "%.01f C", DATA_DOUBLE, temp * 0.1f,
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"mic", "MIC", DATA_STRING, "CRC",
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NULL);
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decoder_output_data(decoder, data);
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return 1;
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}
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if (sensortype == HIDEKI_RAIN) {
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rain_units = (packet[5] << 8) + packet[4];
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battery_ok = (packet[2]>>6) & 0x01;
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rain_units = (packet[5] << 8) | packet[4];
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battery_ok = (packet[2] >> 6) & 1;
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data = data_make(
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"model", "", DATA_STRING, "HIDEKI Rain sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"rain", "Rain", DATA_FORMAT, "%.01f mm", DATA_DOUBLE, rain_units*0.7f,
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NULL);
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"model", "", DATA_STRING, "HIDEKI Rain sensor",
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"rc", "Rolling Code", DATA_INT, rc,
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"channel", "Channel", DATA_INT, channel,
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"battery", "Battery", DATA_STRING, battery_ok ? "OK": "LOW",
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"rain", "Rain", DATA_FORMAT, "%.01f mm", DATA_DOUBLE, rain_units * 0.7f,
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"mic", "MIC", DATA_STRING, "CRC",
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NULL);
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decoder_output_data(decoder, data);
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return 1;
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}
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@@ -132,6 +189,7 @@ static char *output_fields[] = {
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"windstrength",
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"winddirection",
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"rain",
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"mic",
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NULL
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};
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@@ -141,7 +199,7 @@ r_device hideki_ts04 = {
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.short_width = 520, // half-bit width 520 us
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.long_width = 1040, // bit width 1040 us
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.reset_limit = 4000,
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.tolerance = 240, // us
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.tolerance = 240,
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.decode_fn = &hideki_ts04_callback,
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.disabled = 0,
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.fields = output_fields,
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