Raspberry Pi Expansion Boards

These boards extend a Raspberry Pi’s GPIO pins into a dedicated motor‑control interface, letting the computer drive two brushed DC motors directly. They accommodate a wide supply range, from low‑voltage battery packs up to 28 V, and provide continuous current between roughly 2.5 A and 3 A per channel, with higher peak capability for short bursts. The designs plug straight onto the Pi, eliminating the need for external wiring and simplifying integration with robotics, mobile platforms and automation rigs. Some versions arrive pre‑assembled for quick deployment, while kit options let users solder the board themselves. Compatibility across Pi B+, A+, Pi 2 and Pi 3 models ensures the same solution can be reused in projects from small‑scale prototypes to more robust machines.