Inside the BeatBot an Arduino reads 9 infrared sensors for line detection at 100 samples a second. A digital servo controls the Ackerman steering mechanism to follow the line on the track or floor.

The robot works in a simple manner, following a hand placed in front of the robot’s sensors. First, the robot checks for the presence of an object in front using the ultrasonic sensor.

Perhaps the most charming is Ozobot, a tiny robot that follow lines drawn on screens or paper — it's a simple concept that's surprisingly fun.

An Arduino-based robot for people who don’t know how to build robots "Sparki" ideal for teaching kids (or adults) how to program robots.

John Boxall, author of the new book Arduino Workshop, shares a few of the projects from his book on how to get started with the microcontroller. (Click the links to see PDFs of the complete ...

Perhaps the most charming is Ozobot, a tiny robot that follow lines drawn on screens or paper — it's a simple concept that's surprisingly fun.