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PROJECT
453

Magnetic Levitation

By SparkFun Electronics

In this tutorial we'll build a basic magnetic levitator. This guide will go over some of the theory, how to use a magnetic field sensor, and how to use one to build a basic levitation circuit.

PROJECT
559

How to Build a DIY Arc Reactor with 3D Printing & LEDs

By Kevin Walseth

A step-by-step guide to making a superhero-style Arc Reactor with 3D-printed parts and wirelessly controlled LED effects.