X-Git-Url: https://git.rvb.name/rtl-433.git/blobdiff_plain/ca13278b24eb61443559bcb61e64627fba3d8823..6d15c6f967221af825cf84e3ed12b96c763b127b:/src/devices/oregon_scientific_v1.c

diff --git a/src/devices/oregon_scientific_v1.c b/src/devices/oregon_scientific_v1.c
new file mode 100755
index 0000000..0b9e8e5
--- /dev/null
+++ b/src/devices/oregon_scientific_v1.c
@@ -0,0 +1,92 @@
+#include "rtl_433.h"
+#include "data.h"
+#include "util.h"
+
+#define	OSV1_BITS	32
+
+static int rev_nibble(int nib)
+{
+	int revnib = 0;
+
+	revnib += (nib >> 3) & 0x1;
+	revnib += (nib >> 1) & 0x2;
+	revnib += (nib << 1) & 0x4;
+	revnib += (nib << 3) & 0x8;
+
+	return(revnib);
+}
+
+static int oregon_scientific_callback_v1(bitbuffer_t *bitbuffer) {
+	int ret = 0;
+	char time_str[LOCAL_TIME_BUFLEN];
+	int row;
+	int cs;
+	int i;
+	int nibble[OSV1_BITS/4];
+	int sid, channel, uk1;
+	float tempC;
+	int battery, uk2, sign, uk3, checksum;
+	data_t *data;
+
+	local_time_str(0, time_str);
+
+	for(row = 0; row < bitbuffer->num_rows; row++) {
+		if(bitbuffer->bits_per_row[row] == OSV1_BITS) {
+			cs = 0;
+			for(i = 0; i < OSV1_BITS / 8; i++) {
+				nibble[i * 2    ] = rev_nibble((bitbuffer->bb[row][i] >> 4));
+				nibble[i * 2 + 1] = rev_nibble((bitbuffer->bb[row][i] & 0x0f));
+				if(i < ((OSV1_BITS / 8) - 1))
+					cs += nibble[i * 2] + 16 * nibble[i * 2 + 1];
+			}
+			cs = (cs & 0xFF) + (cs >> 8);
+			checksum = nibble[6] + (nibble[7] << 4);
+			if(checksum == cs) {
+				sid      = nibble[0];
+				channel  = ((nibble[1] >> 2) & 0x03) + 1;
+				uk1      = (nibble[1] >> 0) & 0x03;	/* unknown.  Seen change every 60 minutes */
+				tempC    =  nibble[2] / 10. + nibble[3] + nibble[4] * 10.;
+				battery  = (nibble[5] >> 3) & 0x01;
+				uk2      = (nibble[5] >> 2) & 0x01;	/* unknown.  Always zero? */
+				sign     = (nibble[5] >> 1) & 0x01;
+				uk3      = (nibble[5] >> 0) & 0x01;	/* unknown.  Always zero? */
+
+				if(sign) tempC = -tempC;
+
+				data = data_make(
+					"time",			"",				DATA_STRING,	time_str,
+					"model",		"",				DATA_STRING,	"OSv1 Temperature Sensor",
+					"sid",			"SID",			DATA_INT,		sid,
+					"channel",		"Channel",		DATA_INT,		channel,
+					"battery",		"Battery",		DATA_STRING,	battery ? "LOW" : "OK",
+					"temperature_C","Temperature",	DATA_FORMAT,	"%.01f C",				DATA_DOUBLE,	tempC,
+					NULL);
+				data_acquired_handler(data);
+				ret++;
+			}
+		}
+	}
+	return ret;
+}
+
+static char *output_fields[] = {
+  "time",
+  "model",
+  "id",
+  "channel",
+  "battery",
+  "temperature_C",
+  NULL
+};
+
+r_device oregon_scientific_v1 = {
+  .name           = "OSv1 Temperature Sensor",
+  .modulation     = OOK_PULSE_PWM_OSV1, 
+  .short_limit        = 300,
+  .long_limit         = 430, 
+  .reset_limit        = 14000,
+  .json_callback  = &oregon_scientific_callback_v1,
+  .disabled       = 0,
+  .demod_arg      = 0,
+  .fields         = output_fields
+};