Arduino

Digital Clock - Part 6

Digital Clock - Part 6

Joshua R. T. Purba
Sleep mode and Schmitt trigger on multiplexed analog buttons. Also, now the clock is powered by 18650 Li-ion cell.
Digital Clock - Part 4

Digital Clock - Part 4

Joshua R. T. Purba
Adding buttons, alarm buzzer, temperature and humidity sensor, brightness potentiometer, and menu system.