Lego trail rail crossing automated by Arduino. Another lego train crash at the lego train rail crossing! Leo has enough of it and asks Lord Business if he can automate the Lego train rail crossing. Lord Business agrees with it.

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This video shows a double rail crossing which is automated by Arduino. Two sensors indicate whether a train that has priority is apporaching the crossing. In this case, the tracks of the nonpriorrity lego train tracks are disabled and the Lego train signals are put to red. As long as the train enables the sensor, the nonpriority lego train tracks remain disabled. Once the priority lego train has passed the sensor, an adjustable timer is started, to disable the tracks a bit longer to make sure the priority Lego train has cleared the Lego rail crossing. After that the signals are put to green and the nonpriority tracks are started using PWM technology.

Like this kind of stuff? Check out some of my most awesome projects:
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25.000 Brick Lego train station:    • Huge Lego train station MOC of 25000 ...  
Automated Lego train level crossing with the Terminator:    • Lego train level crossing 10128 autom...  
Random controlled Lego trains:    • Even bigger Lego 9 volt train dream l...  

Check out the playlist of my best Lego videos so far:
   • My best Lego videos so far!  

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The AlmightyArjen Youtube channel is about Lego train related videos. I sometimes automate Lego trains, or make a stop motion video or I just setup a huge Lego train layout in the living room. Do you have (reasonable) video suggestions? Please let me know!