devices.esphome.io
Gosund WP9 Power Strip
Gosund WP9 Power Strip
Device Type: plugElectrical Standard: usBoard: esp8266
      
  
        
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: noNewer 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