Add support for GE Choice Alert wireless alarm sensors (#1768)

README.md

@@ -287,6 +287,7 @@ See [CONTRIBUTING.md](./docs/CONTRIBUTING.md).
     [201]  Unbranded SolarTPMS for trucks
     [202]  Funkbus / Instafunk (Berker, Jira, Jung)
     [203]  Porsche Boxster/Cayman TPMS
+    [204]  Jasco/GE Choice Alert Security Devices
 
 * Disabled by default, use -R n or -G
 

conf/rtl_433.example.conf

@@ -424,6 +424,7 @@ stop_after_successful_events false
   protocol 201 # Unbranded SolarTPMS for trucks
   protocol 202 # Funkbus / Instafunk (Berker, Jira, Jung)
   protocol 203 # Porsche Boxster/Cayman TPMS
+  protocol 204 # Jasco/GE Choice Alert Security Devices
 
 ## Flex devices (command line option "-X")
 

include/rtl_433_devices.h

@@ -211,6 +211,7 @@
     DECL(tpms_truck) \
     DECL(funkbus_remote) \
     DECL(tpms_porsche) \
+    DECL(jasco) \
 
     /* Add new decoders here. */
 

man/man1/rtl_433.1

@@ -166,7 +166,7 @@ RTL\-SDR device driver is available.
 To set gain for RTL\-SDR use \-g <gain> to set an overall gain in dB.
 .RE
 .RS
-SoapySDR device driver is available.
+SoapySDR device driver is not available.
 .RE
 .TP
 [ \fB\-d\fI ""\fP ]

src/CMakeLists.txt

@@ -123,6 +123,7 @@ add_library(r_433 STATIC
     devices/insteon.c
     devices/interlogix.c
     devices/intertechno.c
+    devices/jasco.c
     devices/kedsum.c
     devices/kerui.c
     devices/klimalogg.c

src/devices/jasco.c

@@ -0,0 +1,103 @@
+/** @file
+    Jasco/GE Choice Alert Wireless Device Decoder.
+
+    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.
+*/
+/**
+Jasco/GE Choice Alert Wireless Device Decoder.
+
+- Frequency: 318.01 MHz
+
+v0.1 based on the contact and water sensors Model 45131 / FCC ID QOB45131-3
+
+v0.2 corrected decoder
+
+v0.3 internal naming consistancies
+
+*/
+
+#include "decoder.h"
+
+#define JASCO_MSG_BIT_LEN 86
+
+static int jasco_decode(r_device *decoder, bitbuffer_t *bitbuffer)
+{
+
+    if (bitbuffer->bits_per_row[0] != JASCO_MSG_BIT_LEN && bitbuffer->bits_per_row[0] != JASCO_MSG_BIT_LEN+1) {
+        if (decoder->verbose > 1 && bitbuffer->bits_per_row[0] > 0) {
+            fprintf(stderr, "%s: invalid bit count %d\n", __func__,
+                     bitbuffer->bits_per_row[0]);
+        }
+        return DECODE_ABORT_LENGTH;
+    }
+
+    uint8_t b[4];
+    uint8_t chk;
+    uint32_t sensor_id = 0;
+    int s_closed=0;
+//    int battery=0;
+    bitbuffer_t packet_bits;
+    data_t *data;
+    uint8_t const preamble[] = {0xfc, 0x0c};
+    unsigned bitpos = 0;
+
+    if (decoder->verbose > 1) {
+        bitbuffer_debug(bitbuffer);
+    }
+    bitpos = bitbuffer_search(bitbuffer, 0, 0, preamble, sizeof(preamble) * 8) + sizeof(preamble) * 8;
+
+    bitpos = bitbuffer_manchester_decode(bitbuffer, 0, bitpos, &packet_bits, 87);
+
+    bitbuffer_extract_bytes(&packet_bits, 0, 0,b, 32);
+
+    if (decoder->verbose > 1) {
+        bitbuffer_debug(&packet_bits);
+    }
+
+    bitbuffer_clear(&packet_bits);
+
+    chk = b[0] ^ b[1] ^ b[2];
+    if (chk != b[3]) {
+        return DECODE_FAIL_MIC;
+    }
+
+
+    sensor_id = (b[0] << 8)+ b[1];
+
+    s_closed = ((b[2] & 0xef) == 0xef);
+
+
+    /* clang-format off */
+    data = data_make(
+            "model",            "",             DATA_STRING, "Jasco/GE Choice Alert Security Devices",
+            "id",               "Id",           DATA_INT,    sensor_id,
+            "status",           "Closed",       DATA_INT,    s_closed,
+            "mic",              "Integrity",    DATA_STRING, "CRC",
+            NULL);
+    /* clang-format on */
+
+    decoder_output_data(decoder, data);
+    return 1;
+}
+
+static char *output_fields[] = {
+        "model",
+        "id",
+        "status",
+        "mic",
+        NULL,
+};
+
+r_device jasco = {
+        .name        = "Jasco/GE Choice Alert Security Devices",
+        .modulation  = OOK_PULSE_PCM_RZ,
+        .short_width = 250,
+        .long_width  = 250,
+        .reset_limit = 1800, // Maximum gap size before End Of Message
+        .decode_fn   = &jasco_decode,
+        .fields      = output_fields,
+
+};

vs15/rtl_433.vcxproj

@@ -254,6 +254,7 @@ COPY ..\..\libusb\MS64\dll\libusb*.dll $(TargetDir)</Command>
     <ClCompile Include="..\src\devices\insteon.c" />
     <ClCompile Include="..\src\devices\interlogix.c" />
     <ClCompile Include="..\src\devices\intertechno.c" />
+    <ClCompile Include="..\src\devices\jasco.c" />
     <ClCompile Include="..\src\devices\kedsum.c" />
     <ClCompile Include="..\src\devices\kerui.c" />
     <ClCompile Include="..\src\devices\klimalogg.c" />

vs15/rtl_433.vcxproj.filters

@@ -499,6 +499,9 @@
     <ClCompile Include="..\src\devices\intertechno.c">
       <Filter>Source Files\devices</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\devices\jasco.c">
+      <Filter>Source Files\devices</Filter>
+    </ClCompile>
     <ClCompile Include="..\src\devices\kedsum.c">
       <Filter>Source Files\devices</Filter>
     </ClCompile>