Gravity: IO Expansion Shield for Arduino V7.1 Shipping:2-4 Weeks This kit is great for

This kit is great for building your own wireless audio BT adapter

Useful for detecting vibration and \'tap\' inputs from a user

An XBee socket is available on the bottom of the board

and optimally at 5V

it's also an excellent way to learn how to program

Gravity: IO Expansion Shield for Arduino V7.1 Shipping:2-4 Weeks This kit is great forIf you are worried about the chaotic tangle of wires on a breadboard or intimidated by the trepidation of soldering holes on a perforated board, then you've come to the right place. Gravity , a set of electronic module interface specifications formulated by DFRobot, provides the solution you need. By utilizing the Arduino Gravity IO expansion board in conjunction with Gravity modules, you can effortlessly establish connections with a single cable.