"Digital" Control Systems I recently took a control theory class at my local university and we learned about PID, loopshaping, and state-space methods and implemented them in MATLAB/Simulink and used an Arduino for some projects. However, I was talking with some EEs (I'm an ME) and they were mentioning a "digital controls" class. Is there a difference between "digital controls" and what I was doing? I figured since we weren't doing things with analog components directly, I was doing digital control systems. Am I wrong?