LED Gumball Machine

This tutorial will explain how to use and convert between the standard metric prefixes.

An introduction into series and parallel circuits.

Learn all about different kinds of motors and how they operate.

Protect your project by adding a fuse in your circuit to save it from molten destruction.

Review, teardown, and hacking tutorial for the MindWave Mobile, a $99 commercial grade EEG sensor.

The Uncertain 7-Cube is a non-committal, less-than-helpful, but also entirely honest fortune teller. Simply ask it a yes or no question, give it a nudge, and the 7-Cube will dutifully inform you that it doesn’t have all the facts and doesn’t feel comfortable making a guess.

This tutorial will show you how to make a scale that logs your weight to a custom website on the Internet. The principles can be extrapolated to any type of data.

Learn how to wield the power of 18 channels of UV to NIR spectroscopy with AS72651 (UV), AS72652 (VIS), and AS72653 (NIR) sensors!