Modded Steam Controller can automatically charge itself like a robot vacuum — enthusiast creates GitHub program that uses the vibration motor to walk it back to... (opens in new tab)

Ray Foss built this program that uses computer vision to let your Steam Controller slide back towards its charging puck by just using its built-in haptic motors. You can also try it for yourself by visiting the web app and using a webcam so it can see your controller and charging puck.