Does http://www.sparkfun.com/commerce/produc … cts_id=691 having an On Board Regulator mean I can send 5v to the VCC or is it just refering to the I/O ?
Yes it has a 2-7V regulator so 2-7 on the power lines and up to 5V on all other pins. I’m just using 2 now putting 5.3V on the SPI and interrupts as well as being powered from it all working fine.