This is just a couple of toy Arduino projects that I've enjoyed messing around with.
This is a nicer C++ API around analog and digital I/O for Arduino projects. The main benefit is the complete separation between input and output, so there's no possible way to, say, read from an input pin accidentally.
It also uses C++ constructors to automatically set pin modes and things.
This is a tiny project that, given 3 LEDs on pins 2, 4, and 7, and an analog mic on pin 0, will use the 3 LEDs as a volume meter.
This is an implementation of the Clapper, a.k.a. a machine that lights an LED after 2 claps.
This is a dumb box that screams at you until you out-scream it.
This is a small program that plays morse code audio of whatever string you want.
This is a rigged arcade game similar to Wheel of Fortune.
Harlan Haskins (@harlanhaskins)
This code is all released under the MIT License, a copy of which is available in this repository.