I built it for the by Arduino automated Lego train container terminal that I’m currently building. This Lego compressor contains 4 Lego PF M motors, 8 Lego pneumatic pumps and 10 air tanks.

With little more than an Arduino, an OLED display, and some buttons, it’s easy to build your own faux-retro game system. There’s even a growing library of titles out there that target t… ...