Cardboard Ci Playground E Inchworm Rob

BY GUEST AUTHOR KATHY CECERI

Overview

With just a Circuit Playground Express (CPX), a servo motor, and a few household materials, anyone can create a Cardboard Inchworm that meets the “sense-think-act” definition of a robot!

Here’s how:

The Cardboard Inchworm can sense a loud sound using the audio sensor (microphone) built into the CPX.

Then, it can think about how to react, thanks to the CPX’s powerful microcontroller brain.

Finally, it can act by triggering the servo to repeatedly pull the front and back of the Inchworm together and letting them slide apart, creating a slow but steady crawling motion.