Missing one every 4 data pulses - WH65B

[tguozden]

Current Situation

Receiving a finoffset WH65B type weather station with CC1101 (433MHz) and an ESP32 device. Approximately one every 3 -4 packets get lost, don't know why

Any help will be welcomed!

Logs

when fails:

ambientweather_whx_decode: WH31E/WH31B/WH40 detected, buffer is 137 bits length
ambientweather_whx_decode: unknown message type 24 (expected 0x30/0x40/0x68)
fineoffset_WH51_callback: Msg family unknown: 24
fineoffset_wh1080_callback: Fine Offset WH1080 data  codes {80}ff24ab6e02382c000000
fineoffset_wh31l_decode: WH31L detected, buffer is 122 bits length
fineoffset_wn34_decode:  codes {72}24ab6e02382c000000
honeywell_cm921_decode:  ................






when receives:

ambientweather_whx_decode: WH31E/WH31B/WH40 detected, buffer is 132 bits length
ambientweather_whx_decode: unknown message type 24 (expected 0x30/0x40/0x68)
fineoffset_WH24_callback: Raw @ bit_offset [54] codes {136}24ab6e02382c00000001000000000a36e4
N: Received message : {"model":"Fineoffset-WH65B","id":171,"battery_ok":1,"temperature_C":16.8,"humidity":44,"wind_dir_deg":110,"wind_avg_m_s":0,"wind_max_m_s":0,"rain_mm":0.254,"uv":0,"uvi":0,"light_lux":1,"mic":"CRC","protocol":"Fine Offset Electronics, WH25, WH32, WH32B, WN32B, WH24, WH65B, HP1000, Misol WS2320 Temperature/Humidity/Pressure Sensor","rssi":-40,"duration":11000}

Configuration

[env:esp32_cc1101]
board = esp32dev
build_flags = 
  '-DLOG_LEVEL=LOG_LEVEL_TRACE'
  '-DONBOARD_LED=2'          ; My ESP32 board had this wiring
; *** rtl_433_ESP Options ***
;  '-DRF_MODULE_FREQUENCY=915.00'
  '-DOOK_MODULATION=false'       ; False is FSK, True is OOK
  '-DRTL_DEBUG=1'           ; rtl_433 verbose mode
;  '-DRTL_VERBOSE=58'          ; LaCrosse TX141-Bv2, TX141TH-Bv2, TX141-Bv3, TX141W, TX145wsdth sensor
;  '-DRAW_SIGNAL_DEBUG=true'   ; display raw received messages
;  '-DMEMORY_DEBUG=true'   ; display memory usage information
;  '-DDEMOD_DEBUG=true'  ; display signal debug info
;	'-DMY_DEVICES=true'		; subset of devices
;  '-DPUBLISH_UNPARSED=true'   ; publish unparsed signal details
  '-DMINRSSI=-82'
;  '-DRSSI_THRESHOLD=12'         ; Apply a delta of 12 to average RSSI level
;  '-DAVERAGE_RSSI=5000'     ; Display RSSI floor ( Average of 5000 samples )
;  '-DSIGNAL_RSSI=true'             ; Display during signal receive

; *** RF Module Options ***
  '-DRF_CC1101="CC1101"'  ; CC1101 Transceiver Module
;  '-DRF_MODULE_CS=5'      ; pin to be used as chip select
  '-DRF_MODULE_GDO0=22'   ; CC1101 pin GDO0 - Breadboard is 22 versus 13 on soldered
  '-DRF_MODULE_GDO2=21'    ; CC1101 pin GDO2
;'-DRF_MODULE_INIT_STATUS=false'    ; Display transceiver config during startup
; *** RadioLib Options ***
;  '-DRADIOLIB_DEBUG=true'
;  '-DRADIOLIB_VERBOSE=true'
  ; *** FSK Setting Testing ***
  ;'-DsetBitrate'
  ;'-DsetFreqDev'
  ;'-DsetRxBW'

Environment

• OS:
• Software:
• Node:
• npm:

Process Supervisor

hb-service

Additional Context

No response

[NorthernMan54]

Is it possibly data from a different device or just RF noise? The code does try every possible decoder with each signal, so it will show failures for data not meant for that decoder.

[tguozden]

found the problem through a warning!

The problem is from
src/rtl_433/pulse_data.c
A string is not given place inside function pulse_data_print_vcd_header where

    char *timescale;
    if (sample_rate <= 500000)
        timescale = "1 us";
    else
        timescale = "100 ns";

should be something like

    char timescale[8];
    if (sample_rate <= 500000)
        sprintf(timescale, "1 us");
    else
        sprintf(timescale, "100 ns");

This changed from loosing one every 3-5 packets to one in 20, where checksum errors persist. Also lots of warnings from fineoffset.c should be paid attention.

[tguozden]

solved fineoffset.c warnings by copying

"decoder_util copy.c" to decoder_util.c

Still miss some packets, more or less one every ten, mostly from checksum errors. Station transmitter is aside the CC1101 and RSSI lectures are -25 or higher.