Introduction - If you have any usage issues, please Google them yourself
When using Microchip original PICTail Daughter Board for SD/MMC cards a few pins need to be reassigned to acomodate for the different I/O selection. Things are a little more complex when using a PIC32MX4 series Processor Module on the Explorer16 as some of the pins are further swapped to free up the I/Os multiplexed with the USB port pins.