Line Following Robot Trains Runners. 23 Comments . by: Rud Merriam. April 30, 2016. ... Inside the BeatBot an Arduino reads 9 infrared sensors for line detection at 100 samples a second.

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.

<p>The little robot, about half the size of a small egg, whirs along on invisible wheels, using a camera on its base to follow any line it's put on.&nbsp;</p> ...

Arduino is now offering a fully-assembled robot, designed as a base platform for electronics tinkerers' DIY robotics projects. Its hardware and software are open-source, and designed to be hacked.

An Arduino can be used to test the life of any battery with less than 5 volts, Boxall says. So, for a quick way to see how much juice your AAA, AA, C, or D batteries have left, build this Arduino ...

The little robot, about half the size of a small egg, whirs along on invisible wheels, using a camera on its base to follow any line it's put on. When it meets a branching path, it picks one randomly.