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: esp-12f-relay-x2
esphome:
name: ${name}
friendly_name: "ESP-12F_Relay_X2"
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:
switch:
- platform: gpio
pin: GPIO5
id: relay1
name: "Relay 1" # 3.3V level, Use a jumper to RY1 to enable Relay 1
restore_mode: RESTORE_DEFAULT_OFF
- platform: gpio
pin: GPIO4
id: relay2
name: "Relay 2" # 3.3V level, Use a jumper to RY2 to enable Relay 2
restore_mode: RESTORE_DEFAULT_OFF
status_led:
pin:
number: GPIO0
inverted: false # 3.3V level! (pulled up, connect to GND for flashing)
# Other pins from the pinout:
# GPIO2: 3.3V level, Blue LED on ESP (inverted)
# TX: 3.3V level!
# RX: 3.3V level!
# GPIO0: 3.3V level, Extra GPIO0 Header
# GPIO15: 3.3V level
# ADC: 0V-1V only
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.