Build an Arduino-controlled, magnetically activated automatic pet door in this fun engineering project! A parts list, circuit diagram, and example code are all available on the Science Buddies website: https://www.sciencebuddies.org/scienc...

Servo motor tutorial:    • Control a Positional Servo Motor with...  

Reed switch tutorial:    • How to Use a Reed Switch with Arduino...  

Complete Arduino tutorial playlist:    • How to Use an Arduino  

Science Buddies also hosts a library of instructions for over 1,500 other hands-on science projects, lesson plans, and fun activities for K-12 parents, students, and teachers! Visit us at http://www.sciencebuddies.org to learn more.

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