Turtle: 2WD Mobile Robot Platform for Arduino - 

ROB0005 is a Turtle: 2WD mobile robot platform for Arduino. It is a small, low-cost mobile platform for use with a standard Arduino microcontroller. The robot comes as a kit which includes two drive motors, wheels (and rear caster ball), frame, and all mounting hardware. The main structure and mechanical parts for a robot. This DFRobot mobile robot platform is widely used as self-developed control chassis for Arduino platforms and other control boards. This kit features the following: two differential drives, near zero turning radius, high-strength aluminium-alloy body material, motors, and a flexible rubber wheel makes it suitable for indoor flat road surface and flat-platform robot competitions. The top layer includes a standard servo socket and the three optional sensor holder. This three sensor holder fits with our adjustable IR range sensor. The servo can be used for a simple rotation platform, two degrees of freedom camera holder, or even a robotic arm.