Arduino Sketch:

iPhone Project:


Evolution of our project:

We got our start from a Japanese blogger's project:


Who in turn worked from the Tin Can app which uses FSK for iPhone communication:


We got our parts from SparkFun and Mouser.


(2) 10k Resistors
(1) 4.7k Resistor
(2) 100k Resitors
(1) 10k Potentiometer
(1) 334Z Capacitor - 330nF
(1) 471K Capacitor - 470pF
(1) 47J Capacitor - 47pF
(1) 3.5mm 4 Cond - #172-7435 - Might want to buy a few of these. We burned through a couple trying to wire the tiny leads.