MichaelH814

You would want to use a momentary switch, and would need to have the code stop the timer when it gets the signal, and could have a second press be a reset or just have two switches. It should not be too difficult to make that way. For waterproofing, we just did the best we could to seal it up, and it has sit outside 24/7 with no problems for the past month or so.

Hi Fiora96, I think something like this should work for you: https://www.amazon.com/100-240V-Switching-Supply-Adapter-Flexible/dp/B015G8E3X0, I went with a 5 amp 60 watt power supply as I was originally thinking of doubling up the LED strips, but 2amp/24 watts should be enough since most of the power goes to the lights.

A added the code for the millisecond version to the Instructable so if people want it with RTC or without they are both there. Thanks for the comment onion2!

It is a little heavy but doesn't get moved much. I prefer to think of it as sturdy ;)

I know, that is the way I originally had it set up, but there is another pace clock and they need to be in sync so the RTC made that a one person job. The other clock doesn't have an RTC so resets to 0 when powered on. The coach turns on our clock first, then goes and resets the old clock at the start of practice keeping them synced...

Awesome, let me know if you make one :)