devices.esphome.io

Sonoff S31-lite

Sonoff S31-lite

Device Type: plug
Electrical Standard: us
Board: esp8266

Initial Install

This device cannot be converted to ESPHome using tuya-convert.

You must remove the cover and use the serial header for first upload. Hold down the button while powering on the device to put it into bootloader mode.

GPIO Pinout

PinFunction
GPIO0Push Button (HIGH = off, LOW = on)
GPIO12Relay and its status LED
GPIO13Green LED (HIGH = off, LOW = on)
GPIO1RX pin (for external sensors)
GPIO3TX pin (for external sensors)

Basic Configuration

esphome:
  name: SonoffS31lite
  friendly_name: SONOFF S31 Lite


esp8266:
  board: esp01_1m
  framework:
    version: recommended


# Enable Home Assistant API
api:
  encryption:
    key: ""


ota:
  password: ""


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


logger:
  baud_rate: 0 # (UART logging interferes with cse7766)


  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Sonoff S31-lite  Fallback Hotspot"
    password: ""


captive_portal:


uart:
  rx_pin: RX
  baud_rate: 4800


binary_sensor:
  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: True
    name: "Sonoff S31-lite Button"
    on_press:
      - switch.toggle: relay
  - platform: status
    name: "Sonoff S31-lite Status"


sensor:
  - platform: wifi_signal
    name: "Sonoff S31-lite WiFi Signal"
    update_interval: 60s


switch:
  - platform: gpio
    name: "Sonoff S31-lite Relay"
    pin: GPIO12
    id: relay
    restore_mode: ALWAYS_ON


time:
  - platform: sntp
    id: my_time


status_led:
  pin:
    number: GPIO13
    inverted: True
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