How to build Slot Car Track Lap Counting Hardware!

Thanks to a subscriber, Thomas Sidener, I embarked on the journey to build my own in slot lap counting hardware to work with Race Coordinator and Faslaps! This is a pretty simple build.. just order a few thinigs from Amazon and you are on your way! It works great.... with one caveat.

Here are things you will need:

IR Infrared Slotted Optical Optocoupler
https://www.amazon.com/dp/B08977QFK5?...

ELEGOO UNO R3 Board
https://www.amazon.com/dp/B01EWOE0UU?...

Jumper Wire
https://www.amazon.com/dp/B09FP2DBRH?...

ELEGOO 4 Channel DC 5V Relay Module
https://www.amazon.com/dp/B09ZQS2JRD?...

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