Some readers may recall building a line-following robot during their school days. Involving some IR LEDs, perhaps a bit of LEGO, and plenty of trial-and-error, it was fun on a tiny scale. Now ...

Living proof is this human-following robot/car that was build by the YouTuber over at DIY Builder, which relies on an Arduino Uno as the ... the code and the circuit diagram, so technically ...

There’s hardly a day that passes without an Arduino ... line follower. You’ve probably seen “bang-bang” line followers that just use a photocell to turn the robot one way or the other.