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21: Arduino SPI selection jumper
3v regulator is both a reliable reference voltage and also reliably runs SD cards that require a lot of power to run
Fit & Compatibility Notes
New 6-pin connector mates with standard FTDI* USB serial cable (TTL-232R-3V3) and popular USB-to-Serial breakout boards
Raspberry Pi B+ GPIO Expansion Board V3 w/ Screws xbee 21: Arduino SPI selection jumperHere's something you'll want to add to your Raspberry Pi kit. This Raspberry Pi B+ GPIO expansion board lets you extend your I O interface into three. Imagine the possibilities of having to connect three times more components! It's a cost effective Raspberry Pi accessory you want to have in your arsenal. Specifications: 3 sets of IO interface Labeled GPIO pins for user's convenience Onboard screw holes for a more permanent fix to the raspberry pi
