diff --git a/README.md b/README.md
index a88df194..162db13a 100644
--- a/README.md
+++ b/README.md
@@ -239,6 +239,7 @@ See [CONTRIBUTING.md](./docs/CONTRIBUTING.md).
[163] Acurite 590TX Temperature with optional Humidity
[164] Security+ 2.0 (Keyfob)
[165] TFA Dostmann 30.3221.02 T/H Outdoor Sensor
+ [166] LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor
* Disabled by default, use -R n or -G
diff --git a/conf/rtl_433.example.conf b/conf/rtl_433.example.conf
index bff3932d..04c7d8be 100644
--- a/conf/rtl_433.example.conf
+++ b/conf/rtl_433.example.conf
@@ -347,6 +347,7 @@ stop_after_successful_events false
protocol 163 # Acurite 590TX Temperature with optional Humidity
protocol 164 # Security+ 2.0 (Keyfob)
protocol 165 # TFA Dostmann 30.3221.02 T/H Outdoor Sensor
+ protocol 166 # LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor
## Flex devices (command line option "-X")
diff --git a/include/rtl_433_devices.h b/include/rtl_433_devices.h
index 49bf3217..ac591461 100644
--- a/include/rtl_433_devices.h
+++ b/include/rtl_433_devices.h
@@ -173,6 +173,7 @@
DECL(acurite_590tx) \
DECL(secplus_v2) \
DECL(tfa_30_3221) \
+ DECL(lacrosse_breezepro) \
/* Add new decoders here. */
#define DECL(name) extern r_device name;
diff --git a/man/man1/rtl_433.1 b/man/man1/rtl_433.1
index 59276fc6..3083920a 100644
--- a/man/man1/rtl_433.1
+++ b/man/man1/rtl_433.1
@@ -616,6 +616,9 @@ Security+ 2.0 (Keyfob)
.TP
[ \fB165\fI\fP ]
TFA Dostmann 30.3221.02 T/H Outdoor Sensor
+.TP
+[ \fB166\fI\fP ]
+LaCrosse Technology View LTV\-WSDTH01 Breeze Pro Wind Sensor
* Disabled by default, use \-R n or \-G
.SS "Input device selection"
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1f5ab4ba..461060f5 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -100,6 +100,7 @@ add_library(r_433 STATIC
devices/kerui.c
devices/klimalogg.c
devices/lacrosse.c
+ devices/lacrosse_breezepro.c
devices/lacrosse_tx141x.c
devices/lacrosse_tx35.c
devices/lacrosse_ws7000.c
diff --git a/src/Makefile.am b/src/Makefile.am
index cbfe95f6..39f9e293 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -99,6 +99,7 @@ rtl_433_SOURCES = abuf.c \
devices/kerui.c \
devices/klimalogg.c \
devices/lacrosse.c \
+ devices/lacrosse_breezepro.c \
devices/lacrosse_tx141x.c \
devices/lacrosse_tx35.c \
devices/lacrosse_ws7000.c \
diff --git a/src/devices/lacrosse_breezepro.c b/src/devices/lacrosse_breezepro.c
index adb13a3e..1776035e 100644
--- a/src/devices/lacrosse_breezepro.c
+++ b/src/devices/lacrosse_breezepro.c
@@ -1,5 +1,5 @@
/** @file
- LaCrosse Breeze Pro LTV-WSDTH01 sensor.
+ LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor.
Copyright (C) 2020 Mike Bruski (AJ9X) <michael.bruski@gmail.com>
@@ -9,7 +9,7 @@
(at your option) any later version.
*/
/**
-LaCrosse Breeze Pro LTV-WSDTH01 sensor.
+LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor.
LaCrosse Color Forecast Station (model 79400) utilizes the remote temp/
humidity/wind speed/wind direction sensor LTV-WSDTH01.
@@ -18,6 +18,13 @@ Product pages:
https://www.lacrossetechnology.com/products/79400
https://www.lacrossetechnology.com/products/ltv-wsdth01
+Specifications:
+- Wind Speed Range: 0 to 178 kmh
+- Degrees of Direction: 360 deg with 16 Cardinal Directions
+- Outdoor Temperature Range: -29 C to 60 C
+- Outdoor Humidity Range: 10 to 99 %RH
+- Update Interval: Every 31 Seconds
+
Internal inspection of the remote sensor reveals that the device
utilizes a HopeRF CMT2119A ISM transmitter chip which is capable of
transmitting up to 32 bytes of data on any ISM frequency using OOK
@@ -37,76 +44,75 @@ CMT2219A.
(http://www.cmostek.com/download/CMT2219A.pdf)
(http://www.cmostek.com/download/AN138%20CMT2219A%20Configuration%20Guideline.pdf)
-
Protocol Specification:
-
+
Data bits are NRZ encoded with logical 1 and 0 bits 106.842us in length.
-SYN:32h ID:24h ?:4 SEQ:3b ?:1b TEMP:12d HUM:12d WSPD:12d WDIR:12d CHK:8h END:32h
+ SYN:32h ID:24h ?:4b SEQ:3d ?:1b TEMP:12d HUM:12d WSPD:12d WDIR:12d CHK:8h END:32h
Packet length is 264 bits according to inspectrum broken down as follows:
-preamble: 7 bytes (when aligned with sync word these are 0xaa)
-sync word: 4 bytes (0xd2aa2dd4)
-device ID: 3 bytes (matches bar code underside of unit covering pgm port)
-x1: 4 bit (unknown, bit 0?00 might be 'battery low')
-sequence: 3 bits (0-7, one up per packet, then repeats)
-x2: 1 bit (unknown)
-celsius: 12 bits (base 400, scale 10, range: -29°C to 60°C)
-humidity: 12 bits (10 to 99% relative humidity)
-wind speed: 12 bits (0.0 to 178.0 kMh)
-wind direction: 12 bits (0 to 359°)
-checksum: 8 bits (CRC-8 poly 0x31 init 0x00 over 10 bytes after sync)
-end: 32 bytes (0xd2d2d200)
-
+- warm-up: 7 bytes (0x55, aligned with sync word these are 0xaa)
+- preamble/sync 4 bytes 0xd2aa2dd4 (see as 0x695516ea05)
+- device id: 3 bytes (matches bar code underside of unit covering pgm port)
+- x1: 4 bit (unknown, bit 0?00 might be 'battery low')
+- sequence: 3 bits (0-7, one up per packet, then repeats)
+- x2: 1 bit (unknown)
+- celsius: 12 bits (offset 400, scale 10, range: -29 C to 60 C)
+- humidity: 12 bits (10 to 99% relative humidity)
+- wind speed: 12 bits (0.0 to 178.0 kMh)
+- wind direction: 12 bits (0 to 359 deg)
+- checksum: 8 bits (CRC-8 poly 0x31 init 0x00 over 10 bytes after sync)
+- trailer: 32 bytes (0xd2d2d200)
The sensor generates a packet every 'n' seconds but only transmits if one or
more of the following conditions are satified:
- temp changes +/- 0.8 degrees C
- humidity changes +/- 1%
- wind speed changes +/- 0.5 kM/h
+- temp changes +/- 0.8 degrees C
+- humidity changes +/- 1%
+- wind speed changes +/- 0.5 kM/h
Thus, if there is a gap in sequencing, it is due to bad packet[s] (too short,
failed CRC) or packet[s] that didn't satisfy at least one of these three
conditions. 'n' above varies with temperature. At 0C and above, 'n' is 31.
-Between -17C and 0C, 'n' is 60. Below -17C, 'n' is 360.
+Between -17C and 0C, 'n' is 60. Below -17C, 'n' is 360.
*/
#include "decoder.h"
-static const uint8_t sync_word[] = { 0xd2, 0xaa, 0x2d, 0xd4 };
-
static int lacrosse_breezepro_decode(r_device *decoder, bitbuffer_t *bitbuffer)
{
+ uint8_t const preamble_pattern[] = { 0xd2, 0xaa, 0x2d, 0xd4 };
+
data_t *data;
- uint8_t p[32], l, *c, x1, x2, seq, offset, chk;
+ uint8_t b[11];
uint32_t id;
- uint16_t raw_temp, humidity, raw_speed, direction;
+ int flags, seq, offset, chk;
+ int raw_temp, humidity, raw_speed, direction;
float temp_c, speed_kmh;
if (bitbuffer->bits_per_row[0] < 264) {
if (decoder->verbose) {
fprintf(stderr, "%s: Wrong packet length: %d\n", __func__, bitbuffer->bits_per_row[0]);
- }
+ }
return DECODE_ABORT_LENGTH;
}
offset = bitbuffer_search(bitbuffer, 0, 0,
- sync_word, sizeof(sync_word) * 8);
+ preamble_pattern, sizeof(preamble_pattern) * 8);
- if (offset == bitbuffer->bits_per_row[0]) {
+ if (offset >= bitbuffer->bits_per_row[0]) {
if (decoder->verbose) {
fprintf(stderr, "%s: Sync word not found\n", __func__);
- }
- return DECODE_FAIL_SANITY;
+ }
+ return DECODE_ABORT_EARLY;
}
+ offset += sizeof(preamble_pattern) * 8;
+ bitbuffer_extract_bytes(bitbuffer, 0, offset, b, 11 * 8);
- c = bitbuffer->bb[offset];
-
- chk = crc8(c, 10, 0x31, 0x00);
+ chk = crc8(b, 11, 0x31, 0x00);
if (chk) {
if (decoder->verbose) {
fprintf(stderr, "%s: CRC failed!\n", __func__);
@@ -118,35 +124,29 @@ static int lacrosse_breezepro_decode(r_device *decoder, bitbuffer_t *bitbuffer)
bitbuffer_print(bitbuffer);
}
- l = bitbuffer->bits_per_row[0] - offset;
- offset += sizeof(sync_word) * 8;
- bitbuffer_extract_bytes(bitbuffer, 0, offset, p, l);
+ id = (b[0] << 16) | (b[1] << 8) | b[2];
+ flags = (b[3] & 0xf1); // masks off seq bits
+ seq = (b[3] & 0x0e) >> 1;
+ raw_temp = b[4] << 4 | ((b[5] & 0xf0) >> 4);
+ humidity = ((b[5] & 0x0f) << 8) | b[6];
+ raw_speed = b[7] << 4 | ((b[8] & 0xf0) >> 4);
+ direction = ((b[8] & 0x0f) << 8) | b[9];
- id = (p[0] << 16) | (p[1] << 8) | p[2];
- x1 = (p[3] & 0xf0) >> 4;
- seq = (p[3] & 0x0e) >> 1;
- x2 = p[3] & 0x01;
- raw_temp = p[4] << 4 | ((p[5] & 0xf0) >> 4);
- humidity = ((p[5] & 0x0f) << 8) | p[6];
- raw_speed = p[7] << 4 | ((p[8] & 0xf0) >> 4);
- direction = ((p[8] & 0x0f) << 8) | p[9];
-
- /* base and/or scale adjustments */
- temp_c = (float)raw_temp * 0.1 - 40.0;
- speed_kmh = (float)raw_speed * 0.1;
+ // base and/or scale adjustments
+ temp_c = (raw_temp - 400) * 0.1f;
+ speed_kmh = raw_speed * 0.1f;
/* clang-format off */
data = data_make(
- "model", "", DATA_STRING, "LaCrosse-LTV-WSDTH01",
+ "model", "", DATA_STRING, "LaCrosse-BreezePro",
"id", "Sensor ID", DATA_FORMAT, "%06x", DATA_INT, id,
- "x1", "unknown", DATA_INT, x1,
"seq", "Sequence", DATA_FORMAT, "%01x", DATA_INT, seq,
- "x2", "unknown", DATA_INT, x2,
+ "flags", "unknown", DATA_INT, flags,
"temperature_C", "Temperature", DATA_FORMAT, "%.1f C", DATA_DOUBLE, temp_c,
"humidity", "Humidity", DATA_FORMAT, "%u %%", DATA_INT, humidity,
"wind_avg_km_h", "Wind speed", DATA_FORMAT, "%.1f km/h", DATA_DOUBLE, speed_kmh,
"wind_dir_deg", "Wind direction", DATA_INT, direction,
- "mic", "Integrity", DATA_STRING, "CRC8",
+ "mic", "Integrity", DATA_STRING, "CRC",
NULL);
/* clang-format on */
@@ -157,26 +157,23 @@ static int lacrosse_breezepro_decode(r_device *decoder, bitbuffer_t *bitbuffer)
static char *output_fields[] = {
"model",
"id",
- "x1",
- "seq",
- "x2",
+ "seq",
+ "flags",
"temperature_C",
"humidity",
"wind_avg_km_h",
"wind_dir_deg",
- "test",
"mic",
NULL,
};
// flex decoder m=FSK_PCM, s=107, l=107, r=5900
r_device lacrosse_breezepro = {
- .name = "LaCrosse LTV-WSDTH01 sensor",
+ .name = "LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor",
.modulation = FSK_PULSE_PCM,
.short_width = 107,
.long_width = 107,
.reset_limit = 5900,
.decode_fn = &lacrosse_breezepro_decode,
- .disabled = 0,
.fields = output_fields,
};
diff --git a/vs15/rtl_433.vcxproj b/vs15/rtl_433.vcxproj
index ab0e31f2..b4d18104 100644
--- a/vs15/rtl_433.vcxproj
+++ b/vs15/rtl_433.vcxproj
@@ -223,6 +223,7 @@ COPY ..\..\libusb\MS64\dll\libusb*.dll $(TargetDir)</Command>
<ClCompile Include="..\src\devices\kerui.c" />
<ClCompile Include="..\src\devices\klimalogg.c" />
<ClCompile Include="..\src\devices\lacrosse.c" />
+ <ClCompile Include="..\src\devices\lacrosse_breezepro.c" />
<ClCompile Include="..\src\devices\lacrosse_tx141x.c" />
<ClCompile Include="..\src\devices\lacrosse_tx35.c" />
<ClCompile Include="..\src\devices\lacrosse_ws7000.c" />
diff --git a/vs15/rtl_433.vcxproj.filters b/vs15/rtl_433.vcxproj.filters
index 23db32b4..41c5869a 100644
--- a/vs15/rtl_433.vcxproj.filters
+++ b/vs15/rtl_433.vcxproj.filters
@@ -406,6 +406,9 @@
<ClCompile Include="..\src\devices\lacrosse.c">
<Filter>Source Files\devices</Filter>
</ClCompile>
+ <ClCompile Include="..\src\devices\lacrosse_breezepro.c">
+ <Filter>Source Files\devices</Filter>
+ </ClCompile>
<ClCompile Include="..\src\devices\lacrosse_tx141x.c">
<Filter>Source Files\devices</Filter>
</ClCompile>