Fun Hackable Speaker Timer using ATMega328 microcontroller
This is a fun speaker timer I made for some upcoming conferences. It uses a 4-digit charlieplexed LED (pseudo 7-segment) display and is driven by a AVR ATMega328 or an Arduino. It allows a default time to be set, can be paused, and will put out 5 Volts on several IO lines when 10, 5, […]
Fun Hackable Speaker Timer using ATMega328 microcontroller Read More »