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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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.