The time has finally come to begin designing the interface. This last implementation is a stretch from the original thought of design which entailed separating the neck of the guitar (Not fun and A LOT of wiring). The goal is to find out where your finger is on the frets and strings. The strategy for finding out where you finger is is a simple voltage division. According to where you finger is placed on the string, you will get a different resistance reading via different resistors tied with to the guitars frets. So the guitar string is like a long wire in and input resistance and the frets all have a different resistance value coming off of them. For you EE's it is simply two resistances in parallel. Anyways this resistance measure will talk to the Arduino via analog input and from there we can determine which string is being pressed. Pretty much this sample project, just interfaced differently
I began prepping the guitar by tinning the frets. Be careful if you do this, your top could by laminate and burn your guitar. Anyways don't hold down the soldering iron for too long.
Then came soldering on the resistors the neck.
The here is is all finalized. Next step coding and checking....