on (#54NB5)
The Raspberry Pi has 40 GPIO pins that connect to sensors, lights, motors and other devices. Here's a map and detailed explanation of what each does, including on the Pi 4.
| Link | https://www.tomshardware.com/ |
| Feed | https://www.tomshardware.com/feeds/all |
| Updated | 2026-02-05 19:15 |