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Wow. Very nice. I will try it. Tha ks for share. Can i use rotary encoder insted of optical switch ?
Please make the same with arduino nano or uno. Its very complicated to edit for us.
Wow great projet for fun. Thaks for share. I want to change it little bit according to my requirement. Two switch. One for add the 5 min in the timer by press it every time. And other to play/pause the timer. And i will ise tm 1637 digital tube. Will u help me with it? Thanks