A convenient timer set with circular progress indicator, supporting 9 presets and custom time. Designed for Arduino UNO with the same hardware as the arduino_flappybird project.

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 ...

I have been delving (groping blindfold, more accurately) into the Arduino compiler adaptation code to try to determine how it handles the switch-over between its pwm activities, its set-I/O-to-output ...