X-Git-Url: https://git.rvb.name/rtl-433.git/blobdiff_plain/ca13278b24eb61443559bcb61e64627fba3d8823..6d15c6f967221af825cf84e3ed12b96c763b127b:/src/devices/calibeur.c

diff --git a/src/devices/calibeur.c b/src/devices/calibeur.c
new file mode 100644
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--- /dev/null
+++ b/src/devices/calibeur.c
@@ -0,0 +1,113 @@
+/* Shenzhen Calibeur Industries Co. Ltd Wireless Thermometer RF-104 Temperature/Humidity sensor
+ * aka Biltema Art. 84-056 (Sold in Denmark)
+ * aka ...
+ *
+ * NB. Only 3 unique sensors can be detected!
+ *
+ * Update (LED flash) each 2:53
+ *
+ * Pulse Width Modulation with fixed rate and startbit 
+ * Startbit     = 390 samples = 1560 µs
+ * Short pulse  = 190 samples =  760 µs = Logic 0
+ * Long pulse   = 560 samples = 2240 µs = Logic 1
+ * Pulse rate   = 740 samples = 2960 µs
+ * Burst length = 81000 samples = 324 ms
+ *
+ * Sequence of 5 times 21 bit separated by start bit (total of 111 pulses)
+ * S 21 S 21 S 21 S 21 S 21 S
+ * 
+ * Channel number is encoded into fractional temperature
+ * Temperature is oddly arranged and offset for negative temperatures = <6543210> - 41 C
+ * Allways an odd number of 1s (odd parity) 
+ *
+ * Encoding legend:
+ * f = fractional temperature + <ch no> * 10
+ * 0-6 = integer temperature + 41C
+ * p = parity
+ * H = Most significant bits of humidity [5:6]
+ * h = Least significant bits of humidity [0:4]
+ *
+ * LSB                 MSB
+ * ffffff45 01236pHH hhhhh Encoding
+*/
+#include "rtl_433.h"
+#include "util.h"
+#include "data.h"
+
+//static int calibeur_rf104_callback(uint8_t bb[BITBUF_ROWS][BITBUF_COLS], int16_t bits_per_row[BITBUF_ROWS]) {
+static int calibeur_rf104_callback(bitbuffer_t *bitbuffer) {
+	data_t *data;
+	char time_str[LOCAL_TIME_BUFLEN];
+
+	uint8_t ID;
+	float temperature;
+	float humidity;
+	bitrow_t *bb = bitbuffer->bb;
+
+	// Validate package (row [0] is empty due to sync bit)
+	if ((bitbuffer->bits_per_row[1] == 21)			// Dont waste time on a long/short package
+	 && (crc8(bb[1], 3, 0x80, 0) != 0)		// It should be odd parity
+	 && (memcmp(bb[1], bb[2], 3) == 0)	// We want at least two messages in a row
+	)
+	{
+		uint8_t bits;
+
+		bits  = ((bb[1][0] & 0x80) >> 7);	// [0]
+		bits |= ((bb[1][0] & 0x40) >> 5);	// [1]
+		bits |= ((bb[1][0] & 0x20) >> 3);	// [2]
+		bits |= ((bb[1][0] & 0x10) >> 1);	// [3]
+		bits |= ((bb[1][0] & 0x08) << 1);	// [4]
+		bits |= ((bb[1][0] & 0x04) << 3);	// [5]
+		ID = bits / 10;
+		temperature = (float)(bits % 10) / 10.0;
+
+		bits  = ((bb[1][0] & 0x02) << 3);	// [4]
+		bits |= ((bb[1][0] & 0x01) << 5);	// [5]
+		bits |= ((bb[1][1] & 0x80) >> 7);	// [0]
+		bits |= ((bb[1][1] & 0x40) >> 5);	// [1]
+		bits |= ((bb[1][1] & 0x20) >> 3);	// [2]
+		bits |= ((bb[1][1] & 0x10) >> 1);	// [3]
+		bits |= ((bb[1][1] & 0x08) << 3);	// [6]
+		temperature += (float)bits - 41.0;
+
+		bits  = ((bb[1][1] & 0x02) << 4);	// [5]
+		bits |= ((bb[1][1] & 0x01) << 6);	// [6]
+		bits |= ((bb[1][2] & 0x80) >> 7);	// [0]
+		bits |= ((bb[1][2] & 0x40) >> 5);	// [1]
+		bits |= ((bb[1][2] & 0x20) >> 3);	// [2]
+		bits |= ((bb[1][2] & 0x10) >> 1);	// [3]
+		bits |= ((bb[1][2] & 0x08) << 1);	// [4]
+		humidity = bits;
+
+		local_time_str(0, time_str);
+		data = data_make("time",          "",            DATA_STRING, time_str,
+						"model",         "",            DATA_STRING, "Calibeur RF-104",
+						"id",            "ID",          DATA_INT, ID,
+						"temperature_C", "Temperature", DATA_FORMAT, "%.1f C", DATA_DOUBLE, temperature,
+						"humidity",      "Humidity",    DATA_FORMAT, "%2.0f %%", DATA_DOUBLE, humidity,
+						NULL);
+		data_acquired_handler(data);
+		return 1;
+	}
+	return 0;
+}
+
+static char *output_fields[] = {
+	"time",
+	"model",
+	"id",
+	"temperature_C",
+	"humidity",
+	NULL
+};
+
+r_device calibeur_RF104 = {
+	.name           = "Calibeur RF-104 Sensor",
+	.modulation     = OOK_PULSE_PWM_TERNARY,
+	.short_limit    = 1160,	// Short pulse 760µs, Startbit 1560µs, Long pulse 2240µs
+	.long_limit     = 1900,	// Maximum pulse period (long pulse + fixed gap)
+	.reset_limit    = 3200,	// Longest gap (2960-760µs)
+	.json_callback  = &calibeur_rf104_callback,
+	.disabled       = 0,
+	.demod_arg      = 1		// Startbit is middle bit
+};