InstallationAlternative Installation OptionsFinally, connect the CS, CLK, MISO and MOSI pins on the host computer (e.g., the RoboRIO)to the corresponding CS, CLK, MISO and MOSI pins on the navX-MXP circuit board.The SPI pins are 5V tolerant, so the host computer can use either 5V or 3.3V DC levels onthese pins.Creating an EnclosureThe navX-MXP circuit board contains sensitive circuitry, and should be handled carefully.An enclosure is recommended to protect the navX-MXP circuit board from excessive handling,“swarf”, electro-static discharge (ESD) and other elements that could potentially damage thenavX-MXP circuitry. The enclosure can also help prevent accidental shorts to ground which mayoccur on the MXP Expansion I/O pins.Build vs. BuyThose who prefer to print the enclosure using their personal 3D printer, an enclosure design file(in STL format) is available in the “enclosure” directory of the .Those who prefer to purchase the enclosure can order it from (which takes approximately 2weeks to deliver), or at the Kauai Labs store if you’re in a hurry. The price including shippingwill be approximately $20, depending upon the type of material used.Design FilesThe enclosure design files include:navx-mxp.skp: Sketchup 3D Design File for the navX-MXP circuit boardnavx-mxp-roborio-lid_v4.skp: Sketchup 3D Design File for a lid-style enclosure for the27