Gosund WP9 Power Strip

Gosund WP9 Power Strip

Gosund Smart Power Strip Works with Alexa/Google Home, Smart Plugs WiFi Surge Protector Multi Outlet Extender, 10A 3 USB/Charging Ports for Home Office Desk Tablets, 4ft Extension Cord, White

GPIO Pinout

Pin	Function
GPIO00	Ledi
GPIO01	Led4
GPIO02	Led3
GPIO03	Led3
GPIO05	Relay1
GPIO12	Relay3
GPIO13	Relay4
GPIO14	Relay2
GPIO16	Button1

Basic Configuration

substitutions:
  name: power_strip
  upper_name: Power Strip
  platform: ESP8266
  board: esp01_1m

esphome:
  name: $name
  platform: $platform
  board: $board

<<: !include ../secrets.yaml

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO16
      mode: INPUT_PULLUP
      inverted: yes
    name: "${upper_name} Power Button"
    id: "${name}_power_button"
    on_press:
      then:
        - switch.toggle: "${name}_usb"
        - switch.toggle: "${name}_switch1"
        - switch.toggle: "${name}_switch2"
        - switch.toggle: "${name}_switch3"
switch:
  - platform: gpio
    name: "${upper_name} Switch1"
    id: "${name}_switch1"
    pin: GPIO14
    restore_mode: "RESTORE_DEFAULT_ON"
  - platform: gpio
    name: "${upper_name} Switch2"
    id: "${name}_switch2"
    pin: GPIO12
    restore_mode: "RESTORE_DEFAULT_ON"
  - platform: gpio
    name: "${upper_name} Switch3"
    id: "${name}_switch3"
    pin: GPIO13
    restore_mode: "RESTORE_DEFAULT_ON"
  - platform: gpio
    name: "${upper_name} usb"
    id: "${name}_usb"
    pin: GPIO05
    restore_mode: "RESTORE_DEFAULT_ON"
    on_turn_on:
      - switch.turn_on: led
    on_turn_off:
      - switch.turn_off: led
  - platform: gpio
    id: led
    pin: GPIO0
    inverted: no

Newer WP9s that are based on Tuya with a non-ESP SOC

You can opt to swapout the chip and replace with an ESP, but this is difficult and tedious. I have done this with success, however I have since found LocalTuya which may be a better option for you. It is still a bit tedious and you need to jump through some initial hoops, but you don't have to crack open and modify the WP9.
reference: https://github.com/rospogrigio/localtuya