Lego Monorail EV3 – Automated Switch

A monorail without a switch track is not a real monorail 😉

I have been working on an automatic switch for the Lego Mindstorms EV3 monorail. The idea is that there will be a monorail track on our layout with two reverse loops. The loops will each have a switch and the train will need to set the switch in the right position. One reverse loop will be at the delivery station, where the empty containers can be loaded onto the monorail. And the second reverse loop will be at the Candy warehouse, where the empty containers will be dropped. For this year, the (un)loading of the empty containers will be manually. It just saves time to walk between the two locations with the empty containers. Yes, I know this sounds lazy and yes, it is.

In the video below, you see version 1.0 of the automated switch. Currently, the switch is powered by a PF motor. The train was simply programmed to run and switch direction when it noticed a the green tile (on the left, not visible in the video), a red or a yelow tile. Meanwhile, I was operating the switch with a PF remote control.

The next update will be a finished reverse loop, including a second EV3 that controls the switch. The train-EV3 will communicate with the Switch-EV3 to set it in the right position.

 

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