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Sonoff 4CH Pro R2

  1. GPIO Pinout
  2. Basic Configuration
  3. LED Configuration
    1. Status LED (see https://esphome.io/components/status_led.html)
    2. Always-on led (plugged in == led on)
    3. Normal light, toggleable via Home Assistant

GPIO Pinout

Pin Function
GPIO0 Push Button 1 (HIGH = off, LOW = on)
GPIO9 Push Button 2 (HIGH = off, LOW = on)
GPIO10 Push Button 3 (HIGH = off, LOW = on)
GPIO14 Push Button 4 (HIGH = off, LOW = on)
GPIO12 Relay 1 and its status LED
GPIO5 Relay 2 and its status LED
GPIO4 Relay 3 and its status LED
GPIO15 Relay 4 and its status LED
GPIO13 Blue LED (HIGH = off, LOW = on)

Basic Configuration 

# Basic Config
esphome:
  name: sonoff_4chpror2
  platform: ESP8266
  board: esp01_1m

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

logger:
api:
ota:

# Device Specific Config
binary_sensor:
  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: True
    on_press:
      - switch.toggle: "relay_1"
  - platform: gpio
    pin:
      number: GPIO9
      mode: INPUT_PULLUP
      inverted: True
    on_press:
      - switch.toggle: "relay_2"
  - platform: gpio
    pin:
      number: GPIO10
      mode: INPUT_PULLUP
      inverted: True
    on_press:
      - switch.toggle: "relay_3"
  - platform: gpio
    pin:
      number: GPIO14
      mode: INPUT_PULLUP
      inverted: True
    on_press:
      - switch.toggle: "relay_4"

  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: True
    name: "Sonoff 4CH Pro Button 1"
  - platform: gpio
    pin:
      number: GPIO9
      mode: INPUT_PULLUP
      inverted: True
    name: "Sonoff 4CH Pro Button 2"
  - platform: gpio
    pin:
      number: GPIO10
      mode: INPUT_PULLUP
      inverted: True
    name: "Sonoff 4CH Pro Button 3"
  - platform: gpio
    pin:
      number: GPIO14
      mode: INPUT_PULLUP
      inverted: True
    name: "Sonoff 4CH Pro Button 4"

  - platform: status
    name: "Sonoff 4CH Pro Status"

switch:
  - platform: gpio
    name: "Relay 1"
    pin: GPIO12
    id: "relay_1"
  - platform: gpio
    name: "Relay 2"
    pin: GPIO5
    id: "relay_2"
  - platform: gpio
    name: "Relay 3"
    pin: GPIO4
    id: "relay_3"
  - platform: gpio
    name: "Relay 4"
    pin: GPIO15
    id: "relay_4"

LED Configuration

Use one of the following three configurations to adjust the led to your needs.

Status LED (see https://esphome.io/components/status_led.html) 

status_led:
  pin:
    number: GPIO13
    inverted: True

Always-on led (plugged in == led on) 

output:
  - platform: esp8266_pwm
    id: blue_led
    pin: GPIO13
    inverted: True

light:
  - platform: monochromatic
    name: "Blue LED"
    output: blue_led
    restore_mode: ALWAYS_ON
    internal: true

Normal light, toggleable via Home Assistant 

output:
  - platform: esp8266_pwm
    id: blue_led
    pin: GPIO13
    inverted: True

light:
  - platform: monochromatic
    name: "Blue LED"
    output: blue_led