The hardware for this project is simple. There are four infrared LEDs in simple 3D-printed housings that can be glued to the top and bottom of the TV housing and plug into a USB charger. Plus, in case you don’t have Wii gun housing, I have a simple 3D printed handle and sights that you can attach to the Wii Remote (though to save plastic, I made mine a hybrid between wood and 3D printed plastic).
The python-based software was harder to make than the hardware and is currently Linux-only. It calibrates the LEDs and the Wii Remote and then uses homography calculations to emulate an absolute mouse that works quite well in Retroarch’s fceumm NES emulator (and probably some other emulators) on my Raspberry PI 3B+.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.