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Arduino Lap timer base for Race Coordinator
#5

Hi, will follow with interest.

Just a thought, the Arduino Uno only runs at 5v if powered over USB.  If you use the AC in you can power it using anything from 7-12v.  So if running your lanes at 12v you can power the UNO too using the single supply and needing no step down regulators.

I am rebuilding my track now, but had it setup for Race Coordinator too using a single power supply,  But in my case I powered the Arduino direct over USB from the PC as they sat next to each other anyways.

My DIY projects and failures at  https://dazee-projects.blogspot.com/ 
Various projects and videos at https://www.youtube.com/@DaleChan-nel
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