This tutorial demonstrates how to manually tune a PID controller to operate an inverted pendulum. Shawn uses the STEVAL-EDUKIT01 kit from STMicroelectronics, which includes an Arduino, encoder, and stepper motor connected together to create a feedback loop. The stepper motor rotates the encoder back and forth, and the encoder allows a bent rod to rotate freely around its axis. The intent is to design a controller in code that can make the rod (“pendulum”) stand upright with no human intervention.
Proportional integral derivative controllers are all around us. Used in thermostats, furnaces, cruise control systems and so much more. Not 100 percent sure what a PID controller is? Digikey has a really excellent explanation – What is a PID Controller?
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