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[Solved] How to Find a Valid OpenBeken Template for Ettroit ETWF4301 Thermostat BK7231N

lamero345 390 5
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  • #1 21758458
    lamero345
    Level 2  
    Thermostat Ettroit ETWF4301 - BK7231N

    How to Find a Valid OpenBeken Template for Ettroit ETWF4301 Thermostat BK7231N

    I successfully flashed OpenBeken via serial on device Thermostat Ettroit ETWF4301.
    I have the backup of original firmware but never connected it to Tuya app.
    BK7231Flasher cannot extract config from binary.
    How to proceed to find a valid template?
    Thanks
    From Display to Complete System: How the Solution Team Creates Value at Unisystem [ad]
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  • #2 21758615
    divadiow
    Level 37  
    what does Easy Flasher say when you try?

    Added after 3 [minutes]:

    https://github.com/tuya-cloudcutter/tuya-cloudcutter/issues/853

    probably a TuyaMCU device so you'll not be setting assignments in the config page but rather running the TuyaMCU driver and setting up dpIDs in autoexec relevant to your device

    Guides and examples:

    TuyaMCU flashing, setup and configuration guide - configure dpIDs for Home Assistant
    https://www.elektroda.com/rtvforum/topic4038151.html

    TuyaMCU protocol - communication between the microcontroller and the WiFi module
    https://www.elektroda.com/rtvforum/topic3880546.html

    OpenBeken and TuyaMCU dimmer - configuration guide/tutorial
    https://www.elektroda.com/rtvforum/topic3898502.html

    Extracting DpIDs for TUYA MCU devices
    https://www.elektroda.com/rtvforum/topic4021129.html

    How to get dpID list of types and values for flashed TuyaMCU devices with OpenBeken
    https://www.elektroda.com/rtvforum/topic4049908.html

    How to make TuyaMCU device send more data points? Why are dpIDs not sent? Processing by the Wi-Fi...
    https://www.elektroda.com/rtvforum/topic4089722.html

    Scripting the behaviour of TuyaMCU relay OpenBeken - custom buttons, timers, events, countdown
    https://www.elektroda.com/rtvforum/topic4009196.html

    If you want to share your factory firmware backup I could check and jump-start your journey with some info from it
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  • #3 21758731
    lamero345
    Level 2  
    Factory firmware backup in attachment.

    Anyway with ESPHOME firmware I discovered some useful datapoints. Now thermostat is working but not all datapoints are configured.

    This is yaml:

    Code: text Expand Select all Copy to clipboard
    
substitutions:
  name: thermostat
  friendly_name: thermostat

esphome:
  name: ${name}
  friendly_name: ${friendly_name}

bk72xx:
  board: cb3s

logger:
  baud_rate: 0

api:

ota:
  - platform: esphome

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

uart:
  - baud_rate: 9600
    tx_pin: GPIO11
    rx_pin: GPIO10
    id: tuya_uart 

time:
  - platform: homeassistant
    id: homeassistant_time

tuya:
  uart_id: tuya_uart
  time_id: homeassistant_time 
    
climate:
  - platform: tuya
    name: ${name}
    switch_datapoint: 1
    target_temperature_datapoint: 16
    current_temperature_datapoint: 24
    temperature_multiplier: 0.1


    These are datapoints:

    Code: text Expand Select all Copy to clipboard
    
Datapoint 1: switch (value: ON)
Datapoint 2: enum (value: 1)
Datapoint 44: int value (value: 2)
Datapoint 101: switch (value: OFF)
Datapoint 3: enum (value: 0)
Datapoint 71: raw (value: 06.00.00.C8.08.00.00.96.0B.1E.00.96.0D.1E.00.96.11.00.00.DC.16.00.00.C8.06.00.00.C8.08.00.00.C8.0B.1E.00.C8.0D.1E.00.C8.11.00.00.C8.16.00.00.96.06.00.00.C8.08.00.00.C8.0B.1E.00.C8.0D.1E.00.C8.11.00.00.C8.16.00.00.96 (72))
Datapoint 16: int value (value: 215)
Datapoint 19: int value (value: 350)
Datapoint 26: int value (value: 50)
Datapoint 24: int value (value: 170)
Datapoint 102: enum (value: 0)
Datapoint 103: int value (value: 1)
Datapoint 27: int value (value: -2)
Datapoint 106: int value (value: 64)
Datapoint 105: int value (value: 0)
Datapoint 104: enum (value: 0)
    Attachments:
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    #4 21758755
    divadiow
    Level 37  
    missing datapoints 18 and 20?

    Code: JSON
    Log in, to see the code


    Code: Text
    Log in, to see the code

    Code: Text
    Log in, to see the code


    I'm guessing there's a TM1640 present to drive the LEDs?
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  • #5 21758772
    lamero345
    Level 2  
    Wow. How to extract this info?
    Datapoints 18 and 20 are temperatures in Fahrenheit, so (I think) they are visible if I change from Celsius (default) to Fahrenheit.

    TM1640? Maybe I closed the thermostat, but I have a photo

    Internal view of electronic device with PCB and various mounted components.

    My config with your info

    Code: text Expand Select all Copy to clipboard
    
substitutions:
  name: thermostat
  friendly_name: thermostat

esphome:
  name: ${name}
  friendly_name: ${friendly_name}

bk72xx:
  board: cb3s

logger:
  baud_rate: 0

api:

ota:
  - platform: esphome

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

uart:
  - baud_rate: 9600
    tx_pin: GPIO11
    rx_pin: GPIO10
    id: tuya_uart 

time:
  - platform: homeassistant
    id: homeassistant_time

tuya:
  uart_id: tuya_uart
  time_id: homeassistant_time 

climate:
  - platform: tuya
    name: ${friendly_name}
    switch_datapoint: 1
    target_temperature_datapoint: 16
    current_temperature_datapoint: 24
    temperature_multiplier: 0.1
    visual: 
      temperature_step: 0.5
    
binary_sensor:
  # Work state – DPID 3
  - platform: tuya
    id: work_state_raw
    sensor_datapoint: 3
    internal: true

  - platform: template
    name: "Work State"
    lambda: |-
      return !id(work_state_raw).state;
    device_class: plug

number:
  # Upper Limit (°C) – DPID 19
  - platform: tuya
    name: "Upper Temperature Limit"
    number_datapoint: 19
    min_value: 15
    max_value: 45
    step: 1
    device_class: temperature

  # Lower Limit (°C) – DPID 26
  - platform: tuya
    name: "Lower Temperature Limit"
    number_datapoint: 26
    min_value: 5
    max_value: 15
    step: 1
    device_class: temperature

  # Temperature calibration – DPID 27
  - platform: tuya
    name: "Temperature Calibration"
    number_datapoint: 27
    min_value: -9
    max_value: 9
    step: 1
    device_class: temperature

  # Backlight – DPID 44
  - platform: tuya
    name: "Backlight Brightness"
    number_datapoint: 44
    min_value: 0
    max_value: 4
    step: 1
    device_class: illuminance

  # Deadzone temperature – DPID 103
  - platform: tuya
    name: "Deadzone Temperature"
    number_datapoint: 103
    min_value: 0
    max_value: 5
    step: 1
    device_class: temperature

switch:
  # Cooling Mode – DPID 101
  - platform: tuya
    name: "Cooling Mode"
    switch_datapoint: 101
    device_class: switch

select:
  # Forced output – DPID 104
  - platform: tuya
    name: "Forced Output Countdown Setting"
    enum_datapoint: 104
    options:
      0: "Close"
      1: "30"
      2: "60"
      3: "90"

  # Mode – DPID 2
  - platform: tuya
    name: "Thermostat Mode"
    enum_datapoint: 2
    options:
      0: "Auto"
      1: "Manual"
      2: "Temp Override"

sensor:
  # Forced countdown – DPID 105
  - platform: tuya
    name: "Forced Output Countdown"
    sensor_datapoint: 105
    unit_of_measurement: "m"
    accuracy_decimals: 0
    device_class: duration

  # Humidity – DPID 106
  - platform: tuya
    name: "Humidity"
    sensor_datapoint: 106
    accuracy_decimals: 0
    unit_of_measurement: "%"
    device_class: humidity

  # Temperature
  - platform: tuya
    name: "Temperature"
    sensor_datapoint: 24
    accuracy_decimals: 1
    unit_of_measurement: "°C"
    filters:
      - multiply: 0.1
    device_class: temperature
  • #6 21771869
    lamero345
    Level 2  
    Configuration works
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