RyanTeck RTK-000-001

[youtube=http://www.youtube.com/watch?v=KZLzXlM-Qv0&w=560&h=315]

This motor controller board http://www.raspberrypi.org/archives/5269 gives full control over 2 motors and is one of the simplest ways to get into Robotics on the Raspberry Pi.

RtkDocsTo use it in ScratchGPIO, simple set variable AddOn to RTKRPiMCB and then you can use 2 variables – Motor1 and Motor 2 and vary the speed and direction of the motors from -100 to 100.

It also breaks out the 3.3V, GND and the I2C pins so it you can add on other I2C devices as well.