Gamepad Tester ID is a free Android app developed by RRcompany that allows you to test any data input device through an ID tester. The app is designed to check sticks, buttons, and other data input devices using an OTG cable. It provides detailed information on the device name, stick axes, pressing buttons, button codes, and button event.

The app is compatible with various input devices like car buttons, joysticks, gamepads, mice, keyboards, infrared remote control, and physical buttons of the device. With Gamepad Tester ID, you can test your wired joystick and verify if it's functioning correctly. Simply connect the USB cable to your device (or via an OTG cable if your device doesn't have a USB port) and click on the buttons and move the sticks. The app will display the sticks and the button code to ensure that your joystick is working correctly.