HapPi Board

https://www.kickstarter.com/projects/tlbrcandkre8/case4-kits-and-happi-robot-for-the-raspberry-pi

 

HapPiThis is a great multi-purpose small add-on board for the Raspberry Pi.  As well being able to control 2 bi-directional motors with a separate motor battery, it has 3 resistor protected inputs, a dedicated I2C connector and full access, ,using standard male breadboard leads, to all the GPIO pins.

It was designed to complement the Hap-Pi robot but can be used on any chassis

 

Full support is included in ScratchGPIO for it