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.

Costing a mere $4, the Raspberry Pi Pico was launched in 2021 using the in-house RP2040 chip. Unlike most other Raspberry Pi models, the Pi Pico isn't a microcomputer, as it is classified instead as a ...

The Pico 2 gets wireless networking for two bucks more. The Pico 2 gets wireless networking for two bucks more. is a former weekend editor who covered tech and entertainment. He has written news, ...