RETIRED - Pi Wedge B+ Hookup Guide
This Tutorial is Retired!
The SparkFun Pi Wedge B+ kit has been retired. If you are still looking for a way to connect to the Raspberry Pi's 40-pin header, there is a preassembled 40-pin Pi Wedge version available.
View the updated tutorial: Preassembled 40-pin Pi Wedge Hookup Guide
Byron J. 
Introduction
The Raspberry Pi B+ is the latest revision of the Raspberry Pi Linux Computer Board. Differentiating it from the older Model B, the B+ features an extended GPIO connector, with 40 pins, up from the Model B's 26.
To match the rearranged connector, we're introducing the Pi Wedge B+, a small board that connects to the GPIO connector, and breaks the GPIO pins out into rows that work with solderless breadboards.
If you're using a regular Model B (not the plus version), we also have a Pi Wedge for the old 26-pin footprint.
This guide will show you how to assemble the Pi Wedge B+ and start using it with your Raspberry Pi.
Required Materials
- The Pi Wedge B+ kit
- A Raspberry Pi B+ single board computer.
- A Solderless Breadboard
- An FTDI Basic
- Your favorite I2C, SPI or GPIO-based peripherals
- A soldering iron and leaded or lead-free solder