Coding a Timer, with 4 digit 7 segement display AND 74HC595
Using an arduino Uno with shift register and common cathode 4 digit display; I am trying to make a timer that will count down in minutes and seconds using a colon. I have a complete working prototype; along with code. but it isnt the code i need, and i thought i could teach myself how to revise the code to achieve my desired results. hours of countless research has led down many wrong paths . . .
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