Framed Washington Metro map uses Raspberry Pi Pico W and WMATA departure API to light 144 LEDs live. Laser-cut matboard masks 144 LEDs; data refreshes so you can see every train's position from home.

Driving in circles? A good GPS can help get you where you're going quickly and safely so you arrive on time. I’m PCMag’s home theater and AR/VR expert, and your go-to source of information and ...