Arlec PC189HA Plug

The Arlec PC189HA power plug is part of the Grid Connect ecosystem and is sold at Bunnings in Australia and New Zealand.

As at the time of writing, they can be flashed without disassembly or soldering using tuya-convert.

GPIO Pinout

Pin	Function
GPIO04	Blue LED (Inverted: true)
GPIO12	Relay
GPIO14	Button

Getting it up and running

Tuya Convert

These switches are Tuya devices, so if you don't want to open them up to flash directly, you can use tuya-convert to initially get ESPHome onto them. After that, you can use ESPHome's OTA functionality to make any further changes.

• Put the switch into "smartconfig" / "autoconfig" / pairing mode by holding any button for about 5 seconds.
• The status LED blinks rapidly to confirm that it has entered pairing mode.

Basic Configuration

# Basic Config
substitutions:
  device_name: "arlec_PC189HA_1"
  name: "ARLEC PC189HA 1"

esphome:
  name: ${device_name}
  comment: ${name}

esp8266:
  board: esp01_1m

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

logger:

api:
  pencryption:
    key: !secret api_encryption_key

ota:
  password: "ota_password"

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO14
      inverted: True
      mode: INPUT_PULLUP
    name: ${name} button
    filters:
      delayed_on_off: 100ms # Debouncing
    on_press:
      then:
        - switch.toggle: relay

switch:
  - platform: gpio
    pin: GPIO12
    name: "${name}"
    id: relay
    restore_mode: always off
    icon: mdi:power-socket-au
    on_turn_on:
      then:
        - output.turn_on: button_led
    on_turn_off:
      then:
        - output.turn_off: button_led

output:
  - platform: gpio
    id: button_led
    pin:
      number: GPIO4
      inverted: yes