The MindKits Brainboard v2
We call it an ‘Arduino-Compatible Swiss Army Knife'. With a motor driver, a bunch of sensors, and the guts of a full Arduino Nano integrated onboard you have the tools to build your project quickly and neatly. Or you can follow our example projects and build a heart rate monitor, a roving tank, integrate Bluetooth wireless communications, start your home automation project or create a data logger for science experiments.
Documentation
BrainBoard
BrainBoard Library (see manual for install instructions)
Ten Degrees of Freedom Module (Movement Detection)