hmm.... I2C is only max of 4mhz, typically a lot less. *thinks*... surround I2C by the 5V power, not USB. thoughts?. * 23 GPIO (14) * 57 GPIO (15) * 24 PWR (5.0V) * 58 PWR (5.0V) * 25 I2C Clock (SCL) * 59 I2C Data (SDA) * 26 PWR (5.0V) * 60 PWR (5.0v) * 27 USB2 (Data+) * 61 USB2 (Data-) * 28 GROUND * 62 GROUND