diff --git a/README.md b/README.md
index ef20e51f..0089ec76 100644
--- a/README.md
+++ b/README.md
@@ -337,7 +337,7 @@ See [CONTRIBUTING.md](./docs/CONTRIBUTING.md).
[249] Bresser lightning
[250] Schou 72543 Day Rain Gauge, Motonet MTX Rain, MarQuant Rain Gauge, TFA Dostmann 30.3252.01/47.3006.01 Rain Gauge and Thermometer, ADE WS1907
[251] Fine Offset / Ecowitt WH55 water leak sensor
- [252] BMW Gen4-Gen5 and Audi TPMS, multi-brand HUF, Continental, Schrader/Sensata
+ [252] BMW Gen4-Gen5 TPMS and Audi TPMS Pressure Alert, multi-brand HUF/Beru, Continental, Schrader/Sensata, Audi
[253] Watts WFHT-RF Thermostat
[254] Thermor DG950 weather station
[255] Mueller Hot Rod water meter
diff --git a/src/devices/tpms_bmw.c b/src/devices/tpms_bmw.c
index c7301fdd..4a6de2d2 100644
--- a/src/devices/tpms_bmw.c
+++ b/src/devices/tpms_bmw.c
@@ -1,5 +1,5 @@
/** @file
- BMW Gen4 Gen5 and Audi TPMS sensor.
+ BMW Gen4 Gen5 TPMS and Audi TPMS Pressure Alert sensor.
Copyright (C) 2024 Bruno OCTAU (ProfBoc75), \@petrjac, \@Gucioo, Christian W. Zuckschwerdt <christian@zuckschwerdt.org>
@@ -9,14 +9,14 @@
(at your option) any later version.
*/
/**
-BMW Gen4 Gen5 and Audi TPMS sensor.
+BMW Gen4 Gen5 TPMS and Audi TPMS Pressure Alert sensor.
issue #2821:
- BMW Gen5 TPMS support open by \@petrjac
- BMW Gen4 TPMS supported
#2821 issue comment 2043641606 \@Gucioo
-- Audi TPMS based on the same protocol with shorter message
+- Audi TPMS based on the same protocol with shorter message in case of sudden increase or decrease in pressure
Samples raw :
@@ -24,7 +24,7 @@ Samples raw :
{207}555554b2aab4b2b552acb4d332accb32b552aaacd334d32ad334
{211}555554b2aab4b2b552acb4d332acb4cab54caaacd4cad32b4b55e
- Audi
+ Audi Pressure Alert
{166}2aaaaa5955555955a5556a65666a56aa65a65999fc
{165}2aaaaa5955555955a5556a65666a56aa65a65999f8
{167}5555552caaaaacaad2aab532b3352b5532d32cccfe
@@ -40,19 +40,19 @@ Samples after MC Inverted:
03 23 e1 36 a1 4a 3e 01 6b 68 6b
03 23 e1 36 a1 34 3d 01 74 68 cf
- AUDI
+ AUDI Pressure Alert
0 1 2 3 4 5 6 7
MM II II II II PP TT CC
00 20 c0 74 57 36 4c 23
-- MM : Brand BRAND ID, 0x00 = Audi, 0x03 = HUF Gen 5, 0x23 = Schrader/Sensata, 0x80 = Continental
+- MM : Brand BRAND ID, 0x00 = Audi Pressure Alert, 0x03 = HUF Gen 5/Beru, 0x23 = Schrader/Sensata, 0x80 = Continental, 0x88 Audi
- II : Sensor ID
- PP : Pressure * 2.45 kPa
- TT : Temp - 52 C
- F1 : BMW only, Warning Flags , battery, fast deflating ... not yet guess
- F2 : BMW only, Sequence number, to be confirmed
- F3 : BMW only, Target Nominal Pressure * 0.0245 for 0x03
-- CC : CRC 8 of previous bytes (7 bytes for Audi, 10 bytes for BMW) , poli 0x2f, init 0xaa
+- CC : CRC 8 of previous bytes (7 bytes for Audi Pressure Alert, 10 bytes for BMW) , poli 0x2f, init 0xaa
Data layout after MC for HUF Gen 5:
@@ -69,7 +69,7 @@ Schrader/Sensata model:
F1, F2, F3 to guess
-Audi model:
+Audi Pressure Alert:
BRAND = 8h | SENSOR_ID = 32h | PRESS = 8d | TEMP = 8d | CRC = 8h
@@ -85,7 +85,7 @@ static int tpms_bmw_decode(r_device *decoder, bitbuffer_t *bitbuffer)
uint8_t *b;
// preamble is aa59
uint8_t const preamble_pattern[] = {0xaa, 0x59};
- uint8_t len_msg = 11; // default for BMW = 11, if Audi len_msg = 8
+ uint8_t len_msg = 11; // default for BMW = 11, if Audi-Alert len_msg = 8
int flags1 = 0;
int flags2 = 0;
int flags3 = 0;
@@ -128,7 +128,7 @@ static int tpms_bmw_decode(r_device *decoder, bitbuffer_t *bitbuffer)
return DECODE_FAIL_MIC; // crc mismatch
}
decoder_log(decoder, 2, __func__, "BMW or Audi found");
- int brand_id = b[0]; // 0x00 = Audi, 0x03 = HUF Gen 5, 0x80 = Continental, 0x23 = Sensata, 0x88 = ??
+ int brand_id = b[0]; // 0x00 = Audi-Alert, 0x03 = HUF/Beru, 0x23 = Schrader/Sensata, 0x80 = Continental, 0x88 = Audi
float pressure_kPa = b[5] * 2.45;
int temperature_C = b[6] - 52;
@@ -148,8 +148,9 @@ static int tpms_bmw_decode(r_device *decoder, bitbuffer_t *bitbuffer)
/* clang-format off */
data_t *data = data_make(
"model", "", DATA_COND, len_msg == 11, DATA_STRING, "BMW-GEN5",
- "model", "", DATA_COND, len_msg == 8, DATA_STRING, "Audi",
+ "model", "", DATA_COND, len_msg == 8, DATA_STRING, "Audi-PressureAlert",
"type", "", DATA_STRING, "TPMS",
+ "alert", "Alert", DATA_COND, len_msg == 8, DATA_STRING, "Alert Pressure increase/decrease !",
"brand", "Brand", DATA_INT, brand_id,
"id", "", DATA_STRING, id_str,
"pressure_kPa", "Pressure", DATA_FORMAT, "%.1f kPa", DATA_DOUBLE, (double)pressure_kPa,
@@ -169,6 +170,7 @@ static int tpms_bmw_decode(r_device *decoder, bitbuffer_t *bitbuffer)
static char const *const output_fields[] = {
"model",
"type",
+ "alert",
"id",
"brand",
"battery_ok",
@@ -182,7 +184,7 @@ static char const *const output_fields[] = {
};
r_device const tpms_bmw = {
- .name = "BMW Gen4-Gen5 and Audi TPMS, multi-brand HUF, Continental, Schrader/Sensata",
+ .name = "BMW Gen4-Gen5 TPMS and Audi TPMS Pressure Alert, multi-brand HUF/Beru, Continental, Schrader/Sensata, Audi",
.modulation = FSK_PULSE_PCM,
.short_width = 25,
.long_width = 25,