Sonoff SV

The Sonoff SV is 5-24V DC powered SPST relay board with three GPIOs provided on 3-way headers (3.3V, GND and the IO).

It has an ESP8266 with 25Q80DVSIG serial flash. Flashing ESPHome can be easily achieved via the unpopulated programming header and the button connected to GPIO0.

GPIO Pinout

GPIO	Function
GPIO0	Button
GPIO12	Relay and red LED
GPIO13	green LED
GPIO4	available via 3-way header
GPIO5	available via 3-way header
GPI014	available via 3-way header

Basic Configuration

packages:
  - !include common/common.yaml
  - !include common/wifi.yaml
  - !include common/web_server.yaml

esphome:
  name: sonoff-lv
  friendly_name: Sonoff LV DC switch

esp8266:
  board: esp01_1m

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: true
    name: "Button"
    on_press:
      - switch.toggle: relay

switch:
  - platform: gpio
    name: "Outlet"
    icon: mdi:power-socket-au
    pin: GPIO12
    id: relay

status_led:
  pin:
    number: GPIO13