/* Prologue sensor protocol
+ * also FreeTec NC-7104 sensor for FreeTec Weatherstation NC-7102.
*
- * the sensor sends 36 bits 7 times, before the first packet there is a pulse sent
- * the packets are pwm modulated
+ * the sensor sends 36 bits 7 times, before the first packet there is a sync pulse
+ * the packets are ppm modulated (distance coding) with a pulse of ~500 us
+ * followed by a short gap of ~2000 us for a 0 bit or a long ~4000 us gap for a
+ * 1 bit, the sync gap is ~9000 us.
*
- * the data is grouped in 9 nibles
- * [id0] [rid0] [rid1] [data0] [temp0] [temp1] [temp2] [humi0] [humi1]
+ * the data is grouped in 9 nibbles
+ * [model] [id0] [id1] [flags] [temp0] [temp1] [temp2] [humi0] [humi1]
*
- * id0 is always 1001,9
- * rid is a random id that is generated when the sensor starts, could include battery status
+ * model is 1001 (9) or 0110 (5)
+ * id is a random id that is generated when the sensor starts, could include battery status
* the same batteries often generate the same id
- * data(3) is 0 the battery status, 1 ok, 0 low, first reading always say low
- * data(2) is 1 when the sensor sends a reading when pressing the button on the sensor
- * data(1,0)+1 forms the channel number that can be set by the sensor (1-3)
+ * flags(3) is 0 the battery status, 1 ok, 0 low, first reading always say low
+ * flags(2) is 1 when the sensor sends a reading when pressing the button on the sensor
+ * flags(1,0)+1 forms the channel number that can be set by the sensor (1-3)
* temp is 12 bit signed scaled by 10
- * humi0 is always 1100,c if no humidity sensor is available
- * humi1 is always 1100,c if no humidity sensor is available
+ * humi0 is always 1100 (0x0C) if no humidity sensor is available
+ * humi1 is always 1100 (0x0C) if no humidity sensor is available
*
* The sensor can be bought at Clas Ohlson
*/
+
#include "rtl_433.h"
+#include "util.h"
+#include "data.h"
-static int prologue_callback(uint8_t bb[BITBUF_ROWS][BITBUF_COLS],int16_t bits_per_row[BITBUF_ROWS]) {
- int rid;
+static int prologue_callback(bitbuffer_t *bitbuffer) {
+ bitrow_t *bb = bitbuffer->bb;
+ data_t *data;
- int16_t temp2;
+ char time_str[LOCAL_TIME_BUFLEN];
- /* FIXME validate the received message better */
- if (((bb[1][0]&0xF0) == 0x90 && (bb[2][0]&0xF0) == 0x90 && (bb[3][0]&0xF0) == 0x90 && (bb[4][0]&0xF0) == 0x90 &&
- (bb[5][0]&0xF0) == 0x90 && (bb[6][0]&0xF0) == 0x90) ||
- ((bb[1][0]&0xF0) == 0x50 && (bb[2][0]&0xF0) == 0x50 && (bb[3][0]&0xF0) == 0x50 && (bb[4][0]&0xF0) == 0x50) &&
- (bb[1][3] == bb[2][3]) && (bb[1][4] == bb[2][4])) {
+ uint8_t model;
+ uint8_t id;
+ uint8_t battery;
+ uint8_t button;
+ uint8_t channel;
+ int16_t temp;
+ uint8_t humidity;
+ int r = bitbuffer_find_repeated_row(bitbuffer, 3, 36);
- /* Prologue sensor */
- temp2 = (int16_t)((uint16_t)(bb[1][2] << 8) | (bb[1][3]&0xF0));
- temp2 = temp2 >> 4;
- fprintf(stdout, "SENSOR:TYPE=PROLOGUE,");
- fprintf(stdout, "BUTTON= %d,",bb[1][1]&0x04?1:0);
- fprintf(stdout, "BATTERY=%s,",bb[1][1]&0x08?"OK":"LOW");
- fprintf(stdout, "TEMPERATURE=%s%d.%d,",temp2<0?"-":"",abs((int16_t)temp2/10),abs((int16_t)temp2%10));
- fprintf(stdout, "HUMIDITY=%d,", ((bb[1][3]&0x0F)<<4)|(bb[1][4]>>4));
- fprintf(stdout, "CHANNEL=%d,",(bb[1][1]&0x03)+1);
- fprintf(stdout, "ID= %d,",(bb[1][0]&0xF0)>>4);
- rid = ((bb[1][0]&0x0F)<<4)|(bb[1][1]&0xF0)>>4;
- fprintf(stdout, "RID=%d,", rid);
- fprintf(stdout, "HRID=%02x\n", rid);
+ if (r >= 0 &&
+ bitbuffer->bits_per_row[r] <= 37 && // we expect 36 bits but there might be a trailing 0 bit
+ ((bb[r][0]&0xF0) == 0x90 ||
+ (bb[r][0]&0xF0) == 0x50)) {
+
+ /* Get time now */
+ local_time_str(0, time_str);
- fprintf(stderr, "%02x %02x %02x %02x %02x\n",bb[1][0],bb[1][1],bb[1][2],bb[1][3],bb[1][4]);
+ /* Prologue sensor */
+ model = bb[r][0] >> 4;
+ id = ((bb[r][0]&0x0F)<<4) | ((bb[r][1]&0xF0)>>4);
+ battery = bb[r][1]&0x08;
+ button = (bb[r][1]&0x04) >> 2;
+ channel = (bb[r][1]&0x03) + 1;
+ temp = (int16_t)((uint16_t)(bb[r][2] << 8) | (bb[r][3]&0xF0));
+ temp = temp >> 4;
+ humidity = ((bb[r][3]&0x0F) << 4) | (bb[r][4] >> 4);
- if (debug_output)
- debug_callback(bb, bits_per_row);
+ data = data_make("time", "", DATA_STRING, time_str,
+ "model", "", DATA_STRING, "Prologue sensor",
+ "id", "", DATA_INT, model, // this should be named "type"
+ "rid", "", DATA_INT, id, // this should be named "id"
+ "channel", "Channel", DATA_INT, channel,
+ "battery", "Battery", DATA_STRING, battery ? "OK" : "LOW",
+ "button", "Button", DATA_INT, button,
+ "temperature_C", "Temperature", DATA_FORMAT, "%.02f C", DATA_DOUBLE, temp/10.0,
+ "humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
+ NULL);
+ data_acquired_handler(data);
return 1;
}
return 0;
}
+static char *output_fields[] = {
+ "time",
+ "model",
+ "id",
+ "rid",
+ "channel",
+ "battery",
+ "button",
+ "temperature_C",
+ "humidity",
+ NULL
+};
+
r_device prologue = {
- /* .id = */ 2,
- /* .name = */ "Prologue Temperature Sensor",
- /* .modulation = */ OOK_PWM_D,
- /* .short_limit = */ 3500/4,
- /* .long_limit = */ 7000/4,
- /* .reset_limit = */ 15000/4,
- /* .json_callback = */ &prologue_callback,
+ .name = "Prologue Temperature Sensor",
+ .modulation = OOK_PULSE_PPM_RAW,
+ .short_limit = 3500,
+ .long_limit = 7000,
+ .reset_limit = 10000,
+ .json_callback = &prologue_callback,
+ .disabled = 0,
+ .demod_arg = 0,
+ .fields = output_fields
};
projects / rtl-433.git / blobdiff