Parallax Propeller Inventing Electronics Base Kit Offers to learn circuit building, troubleshooting, and writing BlocklyProp programs Comes with a 10 k-ohm single-turn potentiometer Provides students with training and enough parts Offers online teacher workshop training material Runs on 4x AA batteries (Not Included) The Parallax Propeller Inventing Electronics Base Kit provides the key hardware required to get started with the Parallax Inventing Kit Series. The Inventing Kit Series is designed to provide students with training and enough parts to add electronic control to their inventions and solutions for real-world problems. The Electronics Base Kit is exactly that - the complete "platform" with a microcontroller, breadboard, power supply, and electronic components to learn circuit building, troubleshooting, and writing BlocklyProp programs. The kit also includes enough hardware for inventions requiring movement, light measurement, lights, and sound. The add-on kits (mechanical, environmental, security) provide components for more projects.