Light-Following Maze Robot

A class project built around a simple idea: give a robot eyes made of light. Using a microcontroller and photoresistors, it senses differences in light and reacts to them, following a guided path through a maze rather than being told where to go.

This was hands-on embedded work — wiring and soldering the sensors, reading their analog values, and translating "it's brighter over there" into motor commands that actually kept the robot on track. Tuning the thresholds so it reacted reliably instead of twitching at every shadow was the real challenge, and where I learned how forgiving software has to be when the input comes from the messy physical world.

I wrote a full report on this one at the time — I'm digging it up to link here, along with photos of the build.