[Travis Brown] just published a post about the traffic light controller he built. His number one goal was to make the device wireless (except for AC power) and he achieved this by using a WiFi shield ...

[Travis Brown] just published a post about the traffic light controller he built. His number one goal was to make the device wireless (except for AC power) and he achieved this by using a WiFi shield ...

This four-way Traffic Light Controller (not an auto sequencer) is simple to build, as it features no integrated timers or logic circuits (555, microcontrollers etc.) and is ideal for model railroad ...