Unlike a Raspberry Pi, you won't find anything resembling an operating system here; instead, the Arduino uses simplified controls and works off "sketches," or programs you write within the Arduino ...
Because, for all the good Arduino has done for the Hackaday audience, there’s two aspects that really get our goat. (Rant-mode on!) First off is the “sketch” thing. Listen up, Arduino people ...
It’s not only easy to build, the Arduino sketch is less than thirty lines of code. This is a great learning project, plus you get something useful for your lab when its finished.