Add support for ThermoPro TP28b (#2882)
This commit is contained in:
Josh Pearce
Christian W. Zuckschwerdt
parent
78039ff872
commit
6fecf7c0c5
3 changed files with 170 additions and 0 deletions
|
|
@ -263,6 +263,7 @@
|
|||
DECL(watts_thermostat) \
|
||||
DECL(thermor) \
|
||||
DECL(mueller_hotrod) \
|
||||
DECL(thermopro_tp28b) \
|
||||
|
||||
/* Add new decoders here. */
|
||||
|
||||
|
|
|
|||
|
|
@ -229,6 +229,7 @@ add_library(r_433 STATIC
|
|||
devices/tfa_twin_plus_30.3049.c
|
||||
devices/thermopro_tp11.c
|
||||
devices/thermopro_tp12.c
|
||||
devices/thermopro_tp28b.c
|
||||
devices/thermopro_tx2.c
|
||||
devices/thermopro_tx2c.c
|
||||
devices/thermor.c
|
||||
|
|
|
|||
168
src/devices/thermopro_tp28b.c
Normal file
168
src/devices/thermopro_tp28b.c
Normal file
|
|
@ -0,0 +1,168 @@
|
|||
/** @file
|
||||
ThermoPro TP28b Super Long Range Wireless Meat Thermometer for Smoker BBQ Grill.
|
||||
|
||||
Copyright (C) 2024 Josh Pearce <joshua.pearce@gmail.com>
|
||||
|
||||
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 "decoder.h"
|
||||
|
||||
/** @fn int thermopro_tp28b_decode(r_device *decoder, bitbuffer_t *bitbuffer)
|
||||
ThermoPro TP28b Super Long Range Wireless Meat Thermometer for Smoker BBQ Grill.
|
||||
|
||||
|
||||
|
||||
Example data:
|
||||
|
||||
rtl_433 -f 915M -F json -X "n=tp28b,m=FSK_PCM,s=105,l=105,r=5500,preamble=d2aa2dd4" | jq --unbuffered -r '.codes[0]'
|
||||
(spaces below added manually)
|
||||
|
||||
{259}2802 0626 0000 2802 1107 0000 a290 6d70 a702 000000000000 aaaa 0000000000000 [over1: 261C, Temp1: 23C, over2: 71C, Temp2: 23C]
|
||||
{259}2217 0626 0000 3102 1107 0000 a290 6d70 bf02 000000000000 aaaa 0000000000000 [over1: 261C, Temp1: 172, over2: 71C, Temp2: 23C]
|
||||
{259}4421 1026 9009 3002 1012 4410 a298 6d70 5a03 000000000000 aaaa 0000000000000 [over1: 261C, Temp1: 214, over2: 121C, Temp2: 23C]
|
||||
|
||||
|
||||
|
||||
Data layout:
|
||||
|
||||
Bit bench format: A_TEMP:hhhh A_HI:hhhh A_LO:hhhh B_TEMP:hhhh B_HI:hhhh B_LO:hhhh FLAGS:hhhh ID:hhhh CHK:hhhh hhhhhhhhhhhh hhhh hhhhhhhhhhhhh
|
||||
|
||||
[p1_temp] [p1_set_hi] [p1_set_lo] [p2_temp] [p2_set_hi] [p2_set_lo] [flags] [id] [cksum] 000000000000 aaaa 0000000000000
|
||||
|
||||
Temps are 16 bit Binary Coded Decimals (BCD), LLHH. They are always in Celsius.
|
||||
Example: 2821,
|
||||
28 => 2.8 deg C
|
||||
21 => 210 deg C
|
||||
210 + 2.8 = 212.8 C (displayed rounded to 213)
|
||||
|
||||
- p1_temp: probe 1 current temp. 16 bit BCD
|
||||
- p1_set_hi: probe 1 high alarm temp. 16 bit BCD
|
||||
- p1_set_lo: probe 1 low alarm temp. 16 bit BCD
|
||||
- p2_temp: probe 2 current temp. 16 bit BCD
|
||||
- p2_set_hi: probe 2 high alarm temp. 16 bit BCD
|
||||
- p2_set_lo: probe 2 low alarm temp. 16 bit BCD
|
||||
- flags: 16 bit status flags
|
||||
- id: 16 bit identifier
|
||||
- cksum: 16 bit checksum
|
||||
|
||||
Below is some work on status/alarm flags, but I can't quite make sense of them all:
|
||||
|
||||
02d8 => F, p1: in-range, p2: in-range
|
||||
02f9 => F, p1: low, p2: in-range
|
||||
02dd => F, p1: in-range, p2: low
|
||||
02de => F, p1: in-range, p2: hi
|
||||
02fa => F, p1: hi, p2: in-range
|
||||
86f9 => F, p1: low, p2: low
|
||||
82f9 => F, p1: low, p2: low ack'd
|
||||
a2f9 => C, p1: low, p2: low ack'd
|
||||
a6f9 => C, p1: low, p2: low unack'd
|
||||
|
||||
- flags & 0x2000 => Display in Celcius, otherwise Fahrenheit
|
||||
- flags & 0x0400 => Alarm unacknowledged, otherwise acknowledged
|
||||
- flags & 0x0020 => P1 in alarm, otherwise normal
|
||||
- flags & 0x0004 => P2 in alarm, otherwise normal
|
||||
- flags & 0x0001 => P2 in alarm low
|
||||
*/
|
||||
|
||||
// Convert BCD encoded temp to float
|
||||
static float bcd2float(uint8_t lo, uint8_t hi)
|
||||
{
|
||||
return ((hi & 0xF0) >> 4) * 100.0f + (hi & 0x0F) * 10.0f + ((lo & 0xF0) >> 4) * 1.0f + (lo & 0x0F) * 0.1f;
|
||||
}
|
||||
|
||||
static int thermopro_tp28b_decode(r_device *decoder, bitbuffer_t *bitbuffer)
|
||||
{
|
||||
uint8_t const preamble_pattern[] = {0xd2, 0xaa, 0x2d, 0xd4};
|
||||
|
||||
uint8_t b[18];
|
||||
|
||||
if (bitbuffer->num_rows > 1) {
|
||||
decoder_logf(decoder, 1, __func__, "Too many rows: %d", bitbuffer->num_rows);
|
||||
return DECODE_FAIL_SANITY;
|
||||
}
|
||||
int msg_len = bitbuffer->bits_per_row[0];
|
||||
if (msg_len < 240) {
|
||||
decoder_logf(decoder, 1, __func__, "Packet too short: %d bits", msg_len);
|
||||
return DECODE_ABORT_LENGTH;
|
||||
}
|
||||
else if (msg_len > 451) {
|
||||
decoder_logf(decoder, 1, __func__, "Packet too long: %d bits", msg_len);
|
||||
return DECODE_ABORT_LENGTH;
|
||||
}
|
||||
else {
|
||||
decoder_logf(decoder, 1, __func__, "packet length: %d", msg_len);
|
||||
}
|
||||
|
||||
int offset = bitbuffer_search(bitbuffer, 0, 0,
|
||||
preamble_pattern, sizeof(preamble_pattern) * 8);
|
||||
|
||||
if (offset >= msg_len) {
|
||||
decoder_log(decoder, 1, __func__, "Sync word not found");
|
||||
return DECODE_ABORT_EARLY;
|
||||
}
|
||||
|
||||
offset += sizeof(preamble_pattern) * 8;
|
||||
bitbuffer_extract_bytes(bitbuffer, 0, offset, b, 18 * 8);
|
||||
|
||||
int sum = (add_bytes(b, 16) & 0xff) - b[16];
|
||||
if (sum) {
|
||||
decoder_log_bitrow(decoder, 1, __func__, b, sizeof(b) * 8, "Checksum error");
|
||||
return DECODE_FAIL_MIC;
|
||||
}
|
||||
|
||||
decoder_log_bitrow(decoder, 1, __func__, b, bitbuffer->bits_per_row[0] - offset, "");
|
||||
|
||||
uint16_t id = b[15] | b[14] << 8;
|
||||
uint16_t flags = b[13] | b[12] << 8;
|
||||
float p1_temp = bcd2float(b[0], b[1]);
|
||||
float p1_set_hi = bcd2float(b[2], b[3]);
|
||||
float p1_set_lo = bcd2float(b[4], b[5]);
|
||||
float p2_temp = bcd2float(b[6], b[7]);
|
||||
float p2_set_hi = bcd2float(b[8], b[9]);
|
||||
float p2_set_lo = bcd2float(b[10], b[11]);
|
||||
|
||||
/* clang-format off */
|
||||
data_t *data = data_make(
|
||||
"model", "", DATA_STRING, "ThermoPro-TP28b",
|
||||
"id", "", DATA_FORMAT, "%04x", DATA_INT, id,
|
||||
"temperature_1_C", "Temperature 1", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p1_temp,
|
||||
"alarm_high_1_C", "Temperature 1 alarm high", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p1_set_hi,
|
||||
"alarm_low_1_C", "Temperature 1 alarm low", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p1_set_lo,
|
||||
"temperature_2_C", "Temperature 2", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p2_temp,
|
||||
"alarm_high_2_C", "Temperature 2 alarm high", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p2_set_hi,
|
||||
"alarm_low_2_C", "Temperature 2 alarm low", DATA_FORMAT, "%.1f C", DATA_DOUBLE, p2_set_lo,
|
||||
"flags", "Status flags", DATA_FORMAT, "%04x", DATA_INT, flags,
|
||||
"mic", "Integrity", DATA_STRING, "CHECKSUM",
|
||||
NULL);
|
||||
/* clang-format on */
|
||||
|
||||
decoder_output_data(decoder, data);
|
||||
return 1;
|
||||
}
|
||||
|
||||
static char const *const output_fields[] = {
|
||||
"model",
|
||||
"id",
|
||||
"temperature_1_C",
|
||||
"alarm_high_1_C",
|
||||
"alarm_low_1_C",
|
||||
"temperature_2_C",
|
||||
"alarm_high_2_C",
|
||||
"alarm_low_2_C",
|
||||
"flags",
|
||||
"mic",
|
||||
NULL,
|
||||
};
|
||||
|
||||
r_device const thermopro_tp28b = {
|
||||
.name = "ThermoPro TP28b Super Long Range Wireless Meat Thermometer for Smoker BBQ Grill.",
|
||||
.modulation = FSK_PULSE_PCM,
|
||||
.short_width = 105,
|
||||
.long_width = 105,
|
||||
.reset_limit = 5500,
|
||||
.decode_fn = &thermopro_tp28b_decode,
|
||||
.fields = output_fields};
|
||||
Loading…
Add table
Add a link
Reference in a new issue