tinkerforge42

Tinkerforge is a german company that sells
open source electronic building blocks.

Control motors and read sensors with your favorite programming language:
C, C++, C#, Java and Python available.
PHP, Ruby, Flash and more coming soon.
Call high-level methods, such as:
setVelocity() or getTemperature().
All values are human readable, e.g. m/s or °C.