Newly Found Appreciation for Traffic Lights
Yesterday (Sunday) my group and I got together at the university library to start working on our PLC lab. The lab required us to design a circuit that would control a set of traffic lights, as well as pedestrian lights, and several other features.
Long story short, we came up with the logic behind the circuit, but when we entered it into the simulator, the lights were not working properly. After 6.5 hours, all of us went home defeated, with 3 different versions of the circuit.
Today, the professor for the PLC class covered something in class which was crucial to understanding the circuit. So as soon as we got home each one of us was anxious to try on the new methodology learned in class. It turns out we were pretty close to the solution, but there were some problems with the wiring.
So we tested the lights one more time after the fix, and the circuit worked beautifully. The feeling of seeing the lights all working in sequence was golden! And being able to apply our knowledge into real life problems is definitely worth all the hard work.