Replying to How to make a electric motor go backwards with a contact switch

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For a project I'm working on I have a slider that slides on a guide with the help from a motor.

I want something so that when it gets at the end of the guide the slider inverses direction (revers motors direction).

The motor I'm using is a https://solarbotics.com/product/gm9/

I'm looking into using a little switch like this :

But then I don't really know what to add onto it to make it work, A friend talked to me about a 555 timer IC is an integrated circuit (chip), so I'm going to look into that but shit looks complicated. I'm pretty sure there is an easier way !!!

So please NS help meee, I'm lost !!