Download: Lego automated level crossing - how it works video

By AlmightyArjen


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This video shows how the Lego automated level crossing works so you can build one yourself! It's quite easy to do with a minimal level of electronics skills.

It requires a bit of Arduino programming and soldering. You can connect an L293 motor driver chip directly to the Arduino (micro) to power the motors. If you use only a 9V power supply, you can use the 5V output of the Arduino to power the digital circuit of the L293.