static int acurite_txr_callback(bitbuffer_t *bitbuf) {
int browlen;
uint8_t *bb;
float tempc, tempf, wind_dird, rainfall = 0.0, wind_speedmph;
uint8_t humidity, sensor_status, repeat_no, message_type;
char channel, *wind_dirstr = "";
uint16_t sensor_id;
int wind_speed, raincounter;
local_time_str(0, time_str);
if (debug_output > 1) {
fprintf(stderr,"acurite_txr\n");
bitbuffer_print(bitbuf);
}
for (uint16_t brow = 0; brow < bitbuf->num_rows; ++brow) {
browlen = (bitbuf->bits_per_row[brow] + 7)/8;
bb = bitbuf->bb[brow];
if (debug_output > 1)
fprintf(stderr,"acurite_txr: row %d bits %d, bytes %d \n", brow, bitbuf->bits_per_row[brow], browlen);
if (bitbuf->bits_per_row[brow] < ACURITE_TXR_BITLEN ||
bitbuf->bits_per_row[brow] > ACURITE_5N1_BITLEN + 1) {
if (debug_output > 1 && bitbuf->bits_per_row[brow] > 16)
fprintf(stderr,"acurite_txr: skipping wrong len\n");
continue;
}
// There will be 1 extra false zero bit added by the demod.
// this forces an extra zero byte to be added
if (bb[browlen - 1] == 0)
browlen--;
if (!acurite_crc(bb,browlen - 1)) {
if (debug_output) {
fprintf(stderr, "%s Acurite bad checksum:", time_str);
for (uint8_t i = 0; i < browlen; i++)
fprintf(stderr," 0x%02x",bb[i]);
fprintf(stderr,"\n");
}
continue;
}
if (debug_output) {
fprintf(stderr, "acurite_txr Parity: ");
for (uint8_t i = 0; i < browlen; i++) {
fprintf(stderr,"%d",byteParity(bb[i]));
}
fprintf(stderr,"\n");
}
// tower sensor messages are 7 bytes.
// @todo - see if there is a type in the message that
// can be used instead of length to determine type
if (browlen == ACURITE_TXR_BITLEN / 8) {
channel = acurite_getChannel(bb[0]);
sensor_id = acurite_txr_getSensorId(bb[0],bb[1]);
sensor_status = bb[2]; // @todo, uses parity? & 0x07f
humidity = acurite_getHumidity(bb[3]);
tempc = acurite_txr_getTemp(bb[4], bb[5]);
tempf = celsius2fahrenheit(tempc);
printf("%s Acurite tower sensor 0x%04X Ch %c: %3.1F C %3.1F F %d %% RH\n",
time_str, sensor_id, channel, tempc, tempf, humidity);
// currently 0x44 seens to be a normal status and/or type
// for tower sensors. Battery OK/Normal == 0x40
if (sensor_status != 0x44)
printf("%s Acurite tower sensor 0x%04X Ch %c, Status %02X\n",
time_str, sensor_id, channel, sensor_status);
}
// The 5-n-1 weather sensor messages are 8 bytes.
if (browlen == ACURITE_5N1_BITLEN / 8) {
channel = acurite_getChannel(bb[0]);
sensor_id = acurite_5n1_getSensorId(bb[0],bb[1]);
repeat_no = acurite_5n1_getMessageCaught(bb[0]);
message_type = bb[2] & 0x3f;
if (message_type == 0x31) {
// Wind speed, wind direction, and rain fall
wind_speed = acurite_getWindSpeed(bb[3], bb[4]);
wind_speedmph = kmph2mph(wind_speed);
wind_dird = acurite_5n1_winddirections[bb[4] & 0x0f];
wind_dirstr = acurite_5n1_winddirection_str[bb[4] & 0x0f];
raincounter = acurite_getRainfallCounter(bb[5], bb[6]);
if (acurite_raincounter > 0) {
// track rainfall difference after first run
rainfall = ( raincounter - acurite_raincounter ) * 0.01;
if (raincounter < acurite_raincounter) {
printf("%s Acurite 5n1 sensor 0x%04X Ch %c, rain counter reset or wrapped around (old %d, new %d)\n",
time_str, sensor_id, channel, acurite_raincounter, raincounter);
acurite_raincounter = raincounter;
}
} else {
// capture starting counter
acurite_raincounter = raincounter;
printf("%s Acurite 5n1 sensor 0x%04X Ch %c, Total rain fall since last reset: %0.2f\n",
time_str, sensor_id, channel, raincounter * 0.01);
}
printf("%s Acurite 5n1 sensor 0x%04X Ch %c, Msg %02x, Wind %d kmph / %0.1f mph %0.1f° %s (%d), rain gauge %0.2f in.\n",
time_str, sensor_id, channel, message_type,
wind_speed, wind_speedmph,
wind_dird, wind_dirstr, bb[4] & 0x0f, rainfall);
} else if (message_type == 0x38) {
// Wind speed, temperature and humidity
wind_speed = acurite_getWindSpeed(bb[3], bb[4]);
wind_speedmph = kmph2mph((float) wind_speed);
tempf = acurite_getTemp(bb[4], bb[5]);
tempc = fahrenheit2celsius(tempf);
humidity = acurite_getHumidity(bb[6]);
printf("%s Acurite 5n1 sensor 0x%04X Ch %c, Msg %02x, Wind %d kmph / %0.1f mph, %3.1F C %3.1F F %d %% RH\n",
time_str, sensor_id, channel, message_type,
wind_speed, wind_speedmph, tempc, tempf, humidity);
} else {
printf("%s Acurite 5n1 sensor 0x%04X Ch %c, Status %02X, Unknown message type 0x%02x\n",
time_str, sensor_id, channel, bb[3], message_type);
}
}
}
return 0;
}
/*
* This callback handles several Acurite devices that use a very
* similar RF encoding and data format:
*:
* - 592TXR temperature and humidity sensor
* - 5-n-1 weather station
* - 6045M Lightning Detectur with Temperature and Humidity
*/
static int acurite_txr_callback(bitbuffer_t *bitbuf) {
int browlen, valid = 0;
uint8_t *bb;
float tempc, tempf, wind_dird, rainfall = 0.0, wind_speed, wind_speedmph;
uint8_t humidity, sensor_status, sequence_num, message_type;
char channel, *wind_dirstr = "";
char channel_str[2];
uint16_t sensor_id;
int raincounter, temp, battery_low;
uint8_t strike_count, strike_distance;
data_t *data;
local_time_str(0, time_str);
if (debug_output > 1) {
fprintf(stderr,"acurite_txr\n");
bitbuffer_print(bitbuf);
}
for (uint16_t brow = 0; brow < bitbuf->num_rows; ++brow) {
browlen = (bitbuf->bits_per_row[brow] + 7)/8;
bb = bitbuf->bb[brow];
if (debug_output > 1)
fprintf(stderr,"acurite_txr: row %d bits %d, bytes %d \n", brow, bitbuf->bits_per_row[brow], browlen);
if ((bitbuf->bits_per_row[brow] < ACURITE_TXR_BITLEN ||
bitbuf->bits_per_row[brow] > ACURITE_5N1_BITLEN + 1) &&
bitbuf->bits_per_row[brow] != ACURITE_6045_BITLEN) {
if (debug_output > 1 && bitbuf->bits_per_row[brow] > 16)
fprintf(stderr,"acurite_txr: skipping wrong len\n");
continue;
}
// There will be 1 extra false zero bit added by the demod.
// this forces an extra zero byte to be added
if (bb[browlen - 1] == 0)
browlen--;
if (!acurite_checksum(bb,browlen - 1)) {
if (debug_output) {
fprintf(stderr, "%s Acurite bad checksum:", time_str);
for (uint8_t i = 0; i < browlen; i++)
fprintf(stderr," 0x%02x",bb[i]);
fprintf(stderr,"\n");
}
continue;
}
if (debug_output) {
fprintf(stderr, "acurite_txr Parity: ");
for (uint8_t i = 0; i < browlen; i++) {
fprintf(stderr,"%d",byteParity(bb[i]));
}
fprintf(stderr,"\n");
}
// tower sensor messages are 7 bytes.
// @todo - see if there is a type in the message that
// can be used instead of length to determine type
if (browlen == ACURITE_TXR_BITLEN / 8) {
channel = acurite_getChannel(bb[0]);
sensor_id = acurite_txr_getSensorId(bb[0],bb[1]);
sensor_status = bb[2]; // @todo, uses parity? & 0x07f
humidity = acurite_getHumidity(bb[3]);
tempc = acurite_txr_getTemp(bb[4], bb[5]);
sprintf(channel_str, "%c", channel);
battery_low = sensor_status >>7;
data = data_make(
"time", "", DATA_STRING, time_str,
"model", "", DATA_STRING, "Acurite tower sensor",
"id", "", DATA_INT, sensor_id,
"channel", "", DATA_STRING, &channel_str,
"temperature_C", "Temperature", DATA_FORMAT, "%.1f C", DATA_DOUBLE, tempc,
"humidity", "Humidity", DATA_INT, humidity,
"battery", "Battery", DATA_INT, battery_low,
"status", "", DATA_INT, sensor_status,
NULL);
data_acquired_handler(data);
valid++;
}
// The 5-n-1 weather sensor messages are 8 bytes.
if (browlen == ACURITE_5N1_BITLEN / 8) {
if (debug_output) {
fprintf(stderr, "Acurite 5n1 raw msg: %02X %02X %02X %02X %02X %02X %02X %02X\n",
bb[0], bb[1], bb[2], bb[3], bb[4], bb[5], bb[6], bb[7]);
}
channel = acurite_getChannel(bb[0]);
sprintf(channel_str, "%c", channel);
sensor_id = acurite_5n1_getSensorId(bb[0],bb[1]);
sequence_num = acurite_5n1_getMessageCaught(bb[0]);
message_type = bb[2] & 0x3f;
battery_low = (bb[2] & 0x40) >> 6;
if (message_type == ACURITE_MSGTYPE_WINDSPEED_WINDDIR_RAINFALL) {
// Wind speed, wind direction, and rain fall
wind_speed = acurite_getWindSpeed_kph(bb[3], bb[4]);
wind_speedmph = kmph2mph(wind_speed);
wind_dird = acurite_5n1_winddirections[bb[4] & 0x0f];
wind_dirstr = acurite_5n1_winddirection_str[bb[4] & 0x0f];
raincounter = acurite_getRainfallCounter(bb[5], bb[6]);
if (acurite_5n1t_raincounter > 0) {
// track rainfall difference after first run
// FIXME when converting to structured output, just output
// the reading, let consumer track state/wrap around, etc.
rainfall = ( raincounter - acurite_5n1t_raincounter ) * 0.01;
if (raincounter < acurite_5n1t_raincounter) {
fprintf(stderr, "%s Acurite 5n1 sensor 0x%04X Ch %c, rain counter reset or wrapped around (old %d, new %d)\n",
time_str, sensor_id, channel, acurite_5n1t_raincounter, raincounter);
acurite_5n1t_raincounter = raincounter;
}
} else {
// capture starting counter
acurite_5n1t_raincounter = raincounter;
fprintf(stderr, "%s Acurite 5n1 sensor 0x%04X Ch %c, Total rain fall since last reset: %0.2f\n",
time_str, sensor_id, channel, raincounter * 0.01);
}
data = data_make(
"time", "", DATA_STRING, time_str,
"model", "", DATA_STRING, "Acurite 5n1 sensor",
"sensor_id", NULL, DATA_FORMAT, "0x%02X", DATA_INT, sensor_id,
"channel", NULL, DATA_STRING, &channel_str,
"sequence_num", NULL, DATA_INT, sequence_num,
"battery", NULL, DATA_STRING, battery_low ? "OK" : "LOW",
"message_type", NULL, DATA_INT, message_type,
"wind_speed", NULL, DATA_FORMAT, "%.1f mph", DATA_DOUBLE, wind_speedmph,
"wind_dir_deg", NULL, DATA_FORMAT, "%.1f", DATA_DOUBLE, wind_dird,
"wind_dir", NULL, DATA_STRING, wind_dirstr,
"rainfall_accumulation", NULL, DATA_FORMAT, "%.2f in", DATA_DOUBLE, rainfall,
"raincounter_raw", NULL, DATA_INT, raincounter,
NULL);
data_acquired_handler(data);
} else if (message_type == ACURITE_MSGTYPE_WINDSPEED_TEMP_HUMIDITY) {
// Wind speed, temperature and humidity
wind_speed = acurite_getWindSpeed_kph(bb[3], bb[4]);
wind_speedmph = kmph2mph(wind_speed);
tempf = acurite_getTemp(bb[4], bb[5]);
tempc = fahrenheit2celsius(tempf);
humidity = acurite_getHumidity(bb[6]);
data = data_make(
"time", "", DATA_STRING, time_str,
"model", "", DATA_STRING, "Acurite 5n1 sensor",
"sensor_id", NULL, DATA_FORMAT, "0x%02X", DATA_INT, sensor_id,
"channel", NULL, DATA_STRING, &channel_str,
"sequence_num", NULL, DATA_INT, sequence_num,
"battery", NULL, DATA_STRING, battery_low ? "OK" : "LOW",
"message_type", NULL, DATA_INT, message_type,
"wind_speed", NULL, DATA_FORMAT, "%.1f mph", DATA_DOUBLE, wind_speedmph,
"temperature_F", "temperature", DATA_FORMAT, "%.1f F", DATA_DOUBLE, tempf,
"humidity", NULL, DATA_FORMAT, "%d", DATA_INT, humidity,
NULL);
data_acquired_handler(data);
} else {
fprintf(stderr, "%s Acurite 5n1 sensor 0x%04X Ch %c, Status %02X, Unknown message type 0x%02x\n",
time_str, sensor_id, channel, bb[3], message_type);
}
}
if (browlen == ACURITE_6045_BITLEN / 8) {
channel = acurite_getChannel(bb[0]); // same as TXR
sensor_id = (bb[1] << 8) | bb[2]; // TBD 16 bits or 20?
humidity = acurite_getHumidity(bb[3]); // same as TXR
message_type = bb[4] & 0x7f;
temp = bb[5] & 0x7f; // TBD Not sure if this is the temp.
strike_count = bb[6] & 0x7f;
strike_distance = bb[7] & 0x7f;
printf("%s Acurite lightning 0x%04X Ch %c Msg Type 0x%02x: %d C %d %% RH Strikes %d Distance %d -",
time_str, sensor_id, channel, message_type, temp, humidity, strike_count, strike_distance);
// FIXME Temporarily dump message data until the decoding improves.
// Include parity indicator.
for (int i=0; i < browlen; i++) {
char pc;
pc = byteParity(bb[i]) == 0 ? ' ' : '*';
fprintf(stdout, " %02x%c", bb[i], pc);
}
printf("\n");
}
}