DIY Smart Switch

General Notes

A smart WIFI relay to convert a normal swicht into a smart switch and retain the fuction of the normal switch.

Some modules have RF433 fuction but not included below.

These devices are sold under many brands on Aliexpress.

GPIO Pinout

Pin	Function
P6	Rocker switch INPUT_PULLUP
P7	Relay (H)
P8	RF input ?
P23	Button INPUT_PULLUP
P26	Blue Status LED (H)

Configuration

## -----------------------##
## Substitution Variables ##
## -----------------------##
substitutions:
  device_friendly_name: WIFI Switch
  device_icon: "mdi:power"
## --------------------##
## Board Configuration ##
## --------------------##
esphome:
  name: ${device_internal_name}
  friendly_name: ${device_friendly_name}

bk72xx:
  board: generic-bk7231n-qfn32-tuya
## ---------------- ##
##    Status LED    ##
## If there is an error in ESPHome, the diode blinks. If everything is fine, the indicator can be controlled from HA
## ---------------- ##

light:
  - platform: status_led
    name: "Switch state"
    id: led
    pin:
      number: P26
## ---------------- ##
##  Binary Sensors  ##
## ---------------- ##
binary_sensor:
# Button back
  - platform: gpio
    id: button_1
    pin:
      number: P23
      inverted: true
      mode: INPUT_PULLUP
    on_press:
      then:
        - switch.toggle: relay
    filters:
      - delayed_on_off: 50ms
# Rocker switch
  - platform: gpio
    name: "${device_friendly_name} Switch"
    pin: P6
    on_press:
      then:
        - switch.turn_on: relay
    on_release:
        - switch.turn_off: relay
    filters:
      - delayed_on_off: 50ms
## ---------------- ##
##      Switch      ##
## ---------------- ##
switch:
#Relay
  - platform: output
    name: "${device_friendly_name} Relay"
    icon: ${device_icon}
    output: relayoutput
    id: relay
       on_turn_on:
      - light.turn_on: led
    on_turn_off:
      - light.turn_off: led
    restore_mode: ALWAYS_OFF
## ---------------- ##
##      Relays      ##
## ---------------- ##

output:
  # Relay
  - platform: gpio
    id: relayoutput
    pin: P7