Hello friends, I hope you all are doing great. Today, I am going to share the new Ball and Beam PID Control Lab Library for Proteus , the third of our University Lab series. The ball and beam is the most famous unstable plant in control teaching: a ball rolls along a beam, a motor tilts the beam, and the controller has to bring the ball to a chosen spot and keep it there. Leave the beam alone for a moment and the ball rolls off the end. It is the experiment that shows, better than any other, why a controller needs its derivative term, and the same ideas balance robots, steer rockets and keep a camera level. Updates Ball and Beam PID Control Lab Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Modu ...