Lego train rail crossing 2.0 fully automated by Arduino

[patje]

Lego train rail crossing 2.0 fully automated by Arduino

https://youtu.be/Zo5yjSRAZ4w

This video shows a quadruple rail crossing which is automated by Arduino. Signals from the Lego train station controllers indicate whether a train that has priority is apporaching the crossing. In this case, the tracks of the non-priorrity lego train tracks are disabled and the Lego train signals are put to red. As long as the signal from the station controller remains active, the non-priority lego train tracks remain disabled. Once disabled, the signals are put to green and the non-priority tracks are started using PWM technology.