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: sonoff-thr320d
esphome:
name: ${name}
friendly_name: "Sonoff THR320D"
esp32:
board: esp32dev
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: GPIO4
id: relay1
name: "Relay 1" # Small Relay (Dry Contact)
restore_mode: RESTORE_DEFAULT_OFF
- platform: gpio
pin: GPIO19
id: relay2
name: "Relay 2" # Large/Main Relay pin 1, pull high for relay ON
restore_mode: RESTORE_DEFAULT_OFF
- platform: gpio
pin: GPIO22
id: relay3
name: "Relay 3" # Large/Main Relay pin 2, pull high for relay OFF
restore_mode: RESTORE_DEFAULT_OFF
binary_sensor:
- platform: gpio
pin:
number: GPIO0
mode: INPUT_PULLUP
inverted: true
name: "Button" # Push Button (HIGH = off, LOW = on)
on_press:
- switch.toggle: relay1
status_led:
pin:
number: GPIO13
inverted: false # Right LED (Green)
# Other pins from the pinout:
# GPIO15: Middle LED (Blue)
# GPIO16: Left LED (Red)
# GPIO5: Display (TM1621) Data
# GPIO17: Display (TM1621) CS
# GPIO18: Display (TM1621) Write
# GPIO23: Display (TM1621) Read
# GPIO25: Pin 2 of the RJ-9 connector
# GPIO27: Pin 1 of the RJ-9 connector
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.