X-Git-Url: https://git.rvb.name/rtl-433.git/blobdiff_plain/7771049ddd733b759484442a3b10ade8faea75ff..337eb4ba945097205fbb6a3ca7912fb0697092d1:/src/devices/prologue.c

diff --git a/src/devices/prologue.c b/src/devices/prologue.c
new file mode 100644
index 0000000..705137b
--- /dev/null
+++ b/src/devices/prologue.c
@@ -0,0 +1,66 @@
+/* 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,
+};