/diy/ - Do It Yourself

begginer here, which ic or microcontrollers should i use to make a gamepad for usb,
should be 2, 1 for digital buttons and 1 for analogic gamepad
(although idk if joystick button must be attached to the digital controller or counts as analogic),any guides for identifying what controller you need?
also, i dont know how to code it other than fucking arduino, how should i do upload the code to the controller so i dont have to run the program everytime i plug the gamepad ?

thanks to whoever reads this