EVM I2C Mods
You can hook into the I2C at a convenient location, namely one of the I2C expanders.
Just hook your device (make sure its a 3.3v variant!) to the SCL and SDA lines on the expander and get the 3.3v from either the expander or elsewhere on the board.
The code for accessing your device will be similar to the LED flash function [REF NEEDED] listed in the software area.