I did something similar with op amps to implement a PID controller. I had a circuit design class in college where each week you would have some new thing to des

I did something similar with op amps to implement a PID controller. I had a circuit design class in college where each week you would have some new thing to design. One of the assignments was to develop a laser that would find and then track a solar panel. The class had a contest to see which design would track the center of the panel the best. Fun stuff!