i think i've seen all of these already- with an Arduino no less. true to the Arduino, these are all composed of the same 2 parts: input and output. if you're ab

i think i've seen all of these already- with an Arduino no less. true to the Arduino, these are all composed of the same 2 parts: input and output. if you're able to understand or create any one of these projects, the theory behind the other ones falls into place.