Flashing AUBESS Tuya WiFi Mini Smart Switch with OpenBK7231N_QIO_1.14.119.bin & Calibration Issues

nkuehnel86 wrote:

@pkaczmarek2 Thank you so much for this tutorial / guide. As well as for this hole project and contribution.
I managed to flash a Aubess device based on several different tutorial and some Youtube videos with the "OpenBK7231N_QIO_1.14.119.bin".
I couldn't find this device in your database (or I was to stupid) so I had to trial and error with a bit of measuring.
The Device is called "AUBESS Tuya WiFi MiNi Smart Switch With Energy Monitor 16A 2-way control Timer Wireless Switch"
So it has the BK7231N MCU (CB2S) and a BL0942 as energy meter IC.
I figured out the on board LED is on Pin 8, the ToggleChangeOnToggle Pin is on 24 (that's my guess) and the relay is on PIN 26.
I couldn't the test ToggleChangeOnToggle at PIN 24, I assumed it because "S2" (see picture) is at PIN 24.
I was not (yet) able to find the Button PIN and S1.

I had a bit trouble with calibrating. When I set "VoltageSet 225" or "CurrentSet 0.138" it happend to me that the device wasn't anymore reachable and disconnect itself from my WiFi. My guess is some trouble with parsing the command in the backend.
So I tried a couple of times and it appeared to me the feedback "Command not found", but eventually it worked.

I'm using ioBroker instead of Hass, but surprisingly it worked somehow with the Hass MQTT structure , except I hat to manually add a "set" datapoint in ioB MQTT Object-Path for the relay.

So I hope this will help someone else. I'm looking forward to figure out the Button PIN and S1 PIN.

switch:
  - platform: gpio
    name: ${name}_switch
    pin: D24
    id: switch_1
#    restore_mode: restore_default_off

  - platform: gpio
    name: ${name}_relay
    pin: D26
    id: relay_1
#    restore_mode: restore_default_off

  - platform: gpio
    name: ${name}_button
    pin: D23
    id: button_1
#    restore_mode: restore_default_off


uart:
  id: uart_bus
  tx_pin: P11
  rx_pin: P10
  baud_rate: 4800
  stop_bits: 1

sensor:
  - platform: bl0942
    uart_id: uart_bus
    voltage:
      name: '${name} Voltage'
    current:
      name: '${name} Current'
    power:
      name: '${name} Power'
      filters:
        multiply: -1
    energy:
      name: '${name} Energy'
    frequency:
      name: "${name} Frequency"
      accuracy_decimals: 2

    update_interval: 60s