Playing emulated games on an iPad or iPhone is a lot of fun, but one thing missing from the equation is a proper joystick. To fix this dire situation, you can take an original Atari 2600 joystick and turn it into a wireless controller capable of working with any iCade standard game!
The Feather nRF52 Bluefruit Bluetooth LE microcontroller is perfect for the task. It’s fast, has robust Bluetooth, and is tiny enough to fit inside the joystick’s case, along with a LiPo battery for power.
You won’t even need to modify the case, just remove the original cable and you’re ready to create a whole new, modern controller inside of the body of a classic!