The Teensy is a breadboard-friendly development board with loads of features in a, well, teensy package. The Teensy LC (Low Cost) is a 32 bit microcontroller board that provides you with an uncomplicated option for getting started with the Teensy line of products without breaking the bank!
Such an amazing little device.
Easily configurable and programable. It is compatible with arduino so there are lots of support and coding examples available on the Net. Being powered by the Mini USB is most helpful taking only minutes to be up and programming but also has Pins for external power supply. Would recommend this board for beginners but has enough power and speed for more complex projects.