First off thank you guys for the answers I really appreciate it.
My main problem is with hardware however, as I don't have access to a radioshack for example, and getting parts takes a lot of time, so all I have a couple of cheap piezo's which I have tried many times to use but that simply arn't good enough to detect the vibrations on a guitar with enough precision for me to be able to use that as an input device to then calculate the note. I am a fairly good programmer and I think I could make a frequency detection algorithm (I said I didn't want to in order to make my explanation simpler) but I simply don't have the hardware to do it.
As for what the tuner looks like inside, I can indentify the piezo with one connection on the outter ring and one on the inner one just as it should be, and the screen has 3 wires attached to it, red green and black. Ive attached the pictures of the tunner so u guys can see too
