This robot uses two IR sensors to detect a dark line on a surface and adjust direction accordingly via motor control logic.

While walking pads have boomed in popularity (HuffPost readers are obsessed with this one), this small stair stepper helps you achieve the same thing but goes a little further: It has an LCD screen ...

Maybe a servo pulls the pen in and out, but that’s about it. The rest is motor driving and code. We were thinking about the first such bot we’ve ever seen, and couldn’t come up with anything ...

A biometric authentication system using finger vein patterns, leveraging deep learning (CNN), IoT integration, and GSM for real-time security alerts.