A cute Arduino powered spherical quadruped robot has been created by Gregory Leveque, using an Arduino Nano, along with a 16-channel servo driver board.

We’re all pretty well-acquainted with the obstacle avoiding robot. These little inventions use a proximity sensor to detect an object in front of the robot, then circumvent the object accordi… ...

It also carries an LM293D motor controller and [Sath02] added an XBee module for wireless control. At the top of the assembly is an IR distance sensor which is used for obstacle avoidance.