SPI is available through the ICSP header on both the Mega2560 and Duemilanove / Diecimila

Boron Carbide

A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3

Khaki Camouflage

PrintaClean - 250ml Form 2 SPI is available through thePrintaClean 250ml PrintaClean If it's hard to get your glue off the building board, PrintaClean is the solution! PrintaClean can clean your building board. Allow the build plate to cool to room temperature. Then remove the build plate from the 3D printer and spray a generous amount of PrintaClean on it. Let it sit for 20 30 seconds to loosen. Wipe off any residue with a piece of paper. Repeat if necessary. PrintaClean If it's hard to get your glue off