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ESPHome devices

Athom BR30 Bulb: ESPHome

Athom BR30 Bulb (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
US

Pinout

PinFunction
GPIO13CT Output
GPIO5CT Brightness Output
GPIO4Red Output
GPIO12Green Output
GPIO14Blue Output

Find it in shops: AliExpress

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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: athom-br30-bulb

esphome:
  name: ${name}
  friendly_name: "Athom BR30 Bulb"

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:

# Other pins from the pinout:
#   GPIO13: CT Output
#   GPIO5: CT Brightness Output
#   GPIO4: Red Output
#   GPIO12: Green Output
#   GPIO14: Blue Output

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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