When you use a delay() function in an Arduino sketch, the processor stops everything it is doing until this delay is completed. That is called a blocking delay, because it blocks the processor until ...

This project is a simple Arduino countdown timer that uses a knob to set the time and buttons to adjust the countdown. It also includes a buzzer and LED lights for feedback. I have made this project ...

Arduino enthusiasts and makers looking for a project to keep them busy over the next couple of weekends might be interested in this Arduino flying start lap timer, which has been featured over on the ...