+/* Prologue sensor protocol
+ *
+ * the sensor sends 36 bits 7 times, before the first packet there is a pulse sent
+ * the packets are pwm modulated
+ *
+ * the data is grouped in 9 nibles
+ * [id0] [rid0] [rid1] [data0] [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
+ * 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)
+ * 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
+ *
+ * The sensor can be bought at Clas Ohlson
+ */
+#include "rtl_433.h"
+
+static int prologue_callback(uint8_t bb[BITBUF_ROWS][BITBUF_COLS],int16_t bits_per_row[BITBUF_ROWS]) {
+ int rid;
+
+ int16_t temp2;
+
+ /* 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])) {
+
+ /* 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);
+
+ fprintf(stderr, "%02x %02x %02x %02x %02x\n",bb[1][0],bb[1][1],bb[1][2],bb[1][3],bb[1][4]);
+
+ if (debug_output)
+ debug_callback(bb, bits_per_row);
+
+ return 1;
+ }
+ return 0;
+}
+
+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,
+};