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ESPHome devices

Shelly RGBW2: ESPHome

Shelly RGBW2 (lights and led strips, ESP8266): GPIO pinout and a starter ESPHome config with relays, buttons, LED. Local Home Assistant control with no cloud.

Type
Lights and LED strips
Chip
ESP8266
Region standard
UK, US, EU

Pinout

PinFunction
GPIO2Led Link
GPIO4PWM 4 (W)
GPIO5Switch input
GPIO12PWM 1 (R)
GPIO14PWM 3 (B)
GPIO15PWM 2 (G)
A0OpAmp Current Monitor

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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: shelly-rgbw2

esphome:
  name: ${name}
  friendly_name: "Shelly RGBW2"

esp8266:
  board: esp01_1m  # most plugs and relays have 1 MB flash; check yours

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:

status_led:
  pin:
    number: GPIO2
    inverted: false  # Led Link

# Other pins from the pinout:
#   GPIO4: PWM 4 (W)
#   GPIO5: Switch input
#   GPIO12: PWM 1 (R)
#   GPIO14: PWM 3 (B)
#   GPIO15: PWM 2 (G)
#   A0: OpAmp Current Monitor

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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