Phone2Pad is a simple tool that lets you use your Android phone or handheld as a game controller for your Windows PC, whether you’re using a physical gamepad or just touchscreen controls. It works over your local network with low latency and supports up to 4 devices at once.

Key Features:

• Detects most Android-compatible gamepads or built-in handheld controllers

• Maps inputs to Xbox 360 or DualShock 4 signals

• Low-latency LAN connection with QR or manual IP pairing

• Basic on-screen virtual controller (experimental)

• Easy setup with desktop and mobile apps

There is a demo video 

If you are interested, you can check my prject link :) https://aileck.itch.io/phone2pad