Bees shield will make interfacing multiple Bee-style (XBee, GPS Bee, Bluetooth Bee and etc) easier than ever before. Aside from dual Bee style 20p 2.0 pitch socket, it also has large proto area, customizable software, serial, port for easier prototyping.
The Raspberry Pi GPIO Triple Expand Board converts the single GPIO header on the Raspberry Pi B+/A+ into three, and enables the addition of breakout boards, add-on boards or just about anything that's designed to connect on to a Raspberry Pi B+/A+ GPIO!
If you are an expert but just step into raspberry pi, this item will create a good bridge for your learning purpose. All the Raspberry pi pins are “redefined” into arduino style pins, so you can focus on python programming and higher level controlling by using RPI.