Deta Grid Connect Smart Fan Speed Controller with Touch Light Switch: ESPHome

Starter ESPHome config

Built from the pinout above. Keys and the Wi-Fi password come from secrets.yaml in ESPHome. Check the pins against your hardware revision before flashing: one model can ship with different boards.

substitutions:
  name: deta-grid-connect-smart-

esphome:
  name: ${name}
  friendly_name: "Deta Grid Connect Smart Fan Speed Controller with Touch Light Switch"

bk72xx:
  board: generic-bk7231n-qfn32-tuya  # BK7231T or BK7231N: check the chip marking

logger:
api:
  encryption:
    key: !secret api_key
ota:
  - platform: esphome
    password: !secret ota_password
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap: {}
captive_portal:

switch:
  - platform: gpio
    pin: GPIO4
    id: relay1
    name: "Relay 1"  # Relay3
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: GPIO13
    id: relay2
    name: "Relay 2"  # Relay2
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: GPIO14
    id: relay3
    name: "Relay 3"  # Relay1
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: GPIO15
    id: relay4
    name: "Relay 4"  # Relay4
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P26
    id: relay5
    name: "Relay 5"  # Light Relay
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P6
    id: relay6
    name: "Relay 6"  # Fan Relay 1
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P7
    id: relay7
    name: "Relay 7"  # Fan Relay 2
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P9
    id: relay8
    name: "Relay 8"  # Fan Relay 3
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P26
    id: relay9
    name: "Relay 9"  # Light Relay
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P6
    id: relay10
    name: "Relay 10"  # Fan Relay 1
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P8
    id: relay11
    name: "Relay 11"  # Fan Relay 2
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    pin: P9
    id: relay12
    name: "Relay 12"  # Fan Relay 3
    restore_mode: RESTORE_DEFAULT_OFF

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 1"  # Button2
    on_press:
      - switch.toggle: relay1
  - platform: gpio
    pin:
      number: GPIO5
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 2"  # Button3
    on_press:
      - switch.toggle: relay2
  - platform: gpio
    pin:
      number: GPIO16
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 3"  # Button1
    on_press:
      - switch.toggle: relay3
  - platform: gpio
    pin:
      number: P14
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 4"  # Button1
    on_press:
      - switch.toggle: relay4
  - platform: gpio
    pin:
      number: P1
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 5"  # Button2
    on_press:
      - switch.toggle: relay5
  - platform: gpio
    pin:
      number: P8
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 6"  # Button3
    on_press:
      - switch.toggle: relay6
  - platform: gpio
    pin:
      number: P14
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 7"  # Button1
    on_press:
      - switch.toggle: relay7
  - platform: gpio
    pin:
      number: P20
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 8"  # Button2
    on_press:
      - switch.toggle: relay8
  - platform: gpio
    pin:
      number: P7
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 9"  # Button3
    on_press:
      - switch.toggle: relay9

status_led:
  pin:
    number: GPIO3
    inverted: false  # LedLink

# Other pins from the pinout:
#   P10: Led
#   P10: Led
#   GPIO1: None
#   GPIO2: None
#   GPIO9: None
#   GPIO10: None
#   GPIO12: None

How to flash

• Most devices are flashed over UART: a 3.3 V USB-TTL adapter to RX, TX, GND and 3V3, holding GPIO0 to ground at power-on (ESP8266/ESP32). Mains power disconnected.
• Beken (BK72xx) and Realtek chips are flashed with ltchiptool, or with cloudcutter without opening the case if the firmware allows it.
• Details and board photos: the device page in the ESPHome database.

A config from scratch: ESPHome generator. Which pins are safe: pinout.

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