So, a while back, I found a guy on Ebay in China who made n scale traffic signals for road traffic. The assemblies themselves are very nice, and everything I have purchased so far just works. https://www.ebay.com/usr/wehonest_us So, I decided to control them with a micro so I could make it act like a US traffic intersection. The video included shows the results. Works like a charm. For this, I used an Adafruit Raspberry Pi Pico in the feather form factor, and created a ...