SonicCow

Hey all, I have a rubber ducky fully functional and I am looking to create a new simple tool but having issue with the code. Basically what I would like to do is install a Teensy in one of the Staples "Easy" button. Every time the button is pressed I want it to increase a counter by 1. What is the easiest way to accomplish this? Everything will run in OS X. I am sure it's fairly simple and I am just over thinking it. Thanks in advance for any ideas