Countdown Timer: Range 1-99 minutes. Output: time (mm:ss) to seven segment display(TM1637) and Audio to Buzzer. Input: Push button to start. 10K Pot used for time select. arduinotimecountdowntimerstopwatcheagle
(the locale of the party had no Internet connection so this was the best bet). He grabbed a GSM shield and his Arduino Leonardo. The bulk of the evening the display showed the last few messages received, with a small countdown timer in the lower corner. As the countdown approached zero...
Time on target and plenty of friction are the keys to that, and [Denis Hennessy]’s “WashTimer” aims to at least help you out with the former. His build is as simple as can be: an Arduino driving an LED matrix when a proximity sensor fires. Wave your dirty paws in front of the...
I'd hate to go the dumbed-down Arduino C++ route if I didn't have to. I'd prefer C on these small machines. Ed December 09, 2015 by Rick_S Most of the code you compile for the nerdkit can be easily ported to the ATMEGA32u4 on the the teensy using AVR-GCC just like with ...
Wash Timer This is an easy-to-build timer to use while washing your hands which doesn't involve trying to sing a song in your head. Just wave your hand in front of it and wait for the LEDs to go off. Here are the modules I used to build it, but honestly, you could replace any...