X-Git-Url: https://git.rvb.name/rtl-433.git/blobdiff_plain/ca13278b24eb61443559bcb61e64627fba3d8823..6d15c6f967221af825cf84e3ed12b96c763b127b:/src/devices/elro_db286a.c

diff --git a/src/devices/elro_db286a.c b/src/devices/elro_db286a.c
new file mode 100644
index 0000000..da9ecc5
--- /dev/null
+++ b/src/devices/elro_db286a.c
@@ -0,0 +1,87 @@
+/* Doorbell implementation for Elro DB286A devices
+ * 
+ * Note that each device seems to have two codes, which alternate
+ * for every other button press.
+ * 
+ * Example code: 37f62a6c80
+ * 
+ * Copyright (C) 2016 Fabian Zaremba <fabian@youremail.eu>
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+ 
+#include "rtl_433.h"
+#include "pulse_demod.h"
+#include "data.h"
+#include "util.h"
+
+//33 pulses per data pattern
+#define	DB286A_PULSECOUNT		33
+//5*8 = 40 bits, 7 trailing zero bits are encoded, too
+#define DB286A_CODEBYTES		5
+//Hex character count for code:
+//(DB286A_CODEBYTES*8)/4 (8 bits per byte, 4 bits per hex character)
+#define DB286A_CODECHARS		DB286A_CODEBYTES*2
+//Minimum data pattern repetitions (14 is maximum)
+#define	DB286A_MINPATTERN		5
+
+static int doorbell_db286a_callback(bitbuffer_t *bitbuffer) {
+	
+	char time_str[LOCAL_TIME_BUFLEN];
+	data_t *data;
+	bitrow_t *bb = bitbuffer->bb;
+	uint8_t *b = bb[1];
+	unsigned bits = bitbuffer->bits_per_row[1];
+
+	char id_string[DB286A_CODECHARS+1];
+	char *idsp = id_string;
+	
+	unsigned i;
+	
+	if (bits != DB286A_PULSECOUNT) {
+		return 0;
+	}
+	
+	if (count_repeats(bitbuffer, 1) < DB286A_MINPATTERN) {
+		return 0;
+	}
+	
+	//Get hex string representation of code pattern
+	for (i = 0; i <= DB286A_CODEBYTES; i++) {
+	    idsp += sprintf(idsp, "%02x", b[i]);	
+	}
+	id_string[DB286A_CODECHARS] = '\0';
+	
+	local_time_str(0, time_str);
+	
+	data = data_make(
+				"time",			"",		DATA_STRING, time_str,
+				"model",		"",		DATA_STRING, "Elro DB286A",
+				"code",			"Code",	DATA_STRING, id_string,
+				NULL);
+	
+	data_acquired_handler(data);
+	    		
+	return 1;
+		
+}
+
+static char *output_fields[] = {
+    "time",
+    "model",
+    "code",
+    NULL
+};
+
+r_device elro_db286a = {
+	.name			= "Elro DB286A Doorbell",
+	.modulation     = OOK_PULSE_PWM_RAW,
+	.short_limit    = 800,
+	.long_limit     = 1500*4,
+	.reset_limit    = 2000*4,
+	.json_callback	= &doorbell_db286a_callback,
+	.disabled		= 0,
+    .fields         = output_fields
+};