Resistor Projects

LED Sound Meter

LED Sound Meter

In this guide you will learn to created an array of leds that visually represent the volume picked up by an electret microphone. You will learn how to wire 3...

Posted by Sam Berg

Categories: Arduino | 1 Comment


Hot/Cold LEDs

Hot/Cold LEDs

In this project, we will combine an Arduino, a Ping sensor, and a small assortment of components, to build a project that senses distances as "hot/cold." Once built, we’ll walk...

Posted by Julius Schmiedel

Categories: Electronics, Arduino | 4 Comments


MonoBox Powered Speaker

MonoBox Powered Speaker

MonoBox is a small, inexpensive powered speaker that amplifies the output of your headphone music player. It’s little but it’s loud! All the circuit parts are available from RadioShack. The...

Posted by Ross Hershberger

Categories: Electronics, Music | 69 Comments


IR Jammer Kit

IR Jammer Kit

These directions were adapted from alan-parekh.com. The IR Jammer project is microcontroller-based; what this means is there is a small self-contained computer that controls the unit. The IR Jammer will...

Posted by Alan Parekh

Categories: Computers & Mobile, Fun & Games | 2 Comments


Lumia Lunchbox Laser

Lumia Lunchbox Laser

Back in the 1970s, my friend Wayne Gillis and I used to do light shows at science fiction conventions. We had the usual panoply of overhead, slide, and custom-made projectors,...

Posted by Jake Spurlock

Categories: Music, Home | No Comments