Circuitry Hacks

Make your own Burning Blue Laser Pointer

Make your own Burning Blue Laser Pointer

This fantastic video demonstrates how to build a powerful, burning blue laser and place it inside a lighter. While you could get the laser diodes from the site mentioned in the video, you should buy the laser diodes way cheaper on eBay. We've...
Hack Parking Meters for Unlimited Free Hours

Hack Parking Meters for Unlimited Free Hours

Joe Grand, hacker extraordinaire is at it again.  This time he's developed a way to hack the new "smart" parking meters which are beginning to show up in most major cities.  By using a basic oscilloscope, he managed to analyze the prepaid cards...
Make a DIY Wifi Repeater/Range Extender

Make a DIY Wifi Repeater/Range Extender

Problem: A wireless network is just barely out of reach.  Solution: Build your own wireless repeater, place it between you and the wireless router and it'll repeat the signal, stronger than before, giving you access to the previously unaccessable...
Video: Build your own Self-Balancing Segway

Video: Build your own Self-Balancing Segway

This DIY Segway-like scooter is� an exceptional guide to building your own self balancing transportation machine. Although Dean Kamen was first with his patented Segway scooter, they are actually surprisingly simple to build.�� We had covered...
Insanely Bright LED Keychain to Flashlight Mod

Insanely Bright LED Keychain to Flashlight Mod

Keep in mind, this room was pitch black a moment ago. Here’s another fantastic tutorial from Jay, a DIY lasers expert. See all of our DIY LED and Laser Projects. Take an ordinary, boring LED keychain and turn it into a super powered LED as...
Build your own Portable Air Conditioner

Build your own Portable Air Conditioner

With roasting temperatures this summer, it would be an awesome treat to have a personal, handheld air conditioner. Follow this detailed build tutorial and learn how to make your own portable AC unit.  We also featured a similar air conditioning and...
Make a DIY Open Source PSP with an Arduino

Make a DIY Open Source PSP with an Arduino

Here’s another fantastic tutorial from our Open Source Arduino master, Matt. See all of our Arduino projects. In the spirit of the open source gameboy (#5 on the Top 40 Arduino Projects of the Web), Matt's latest project uses a few Arduino...
Fantastic DIY 7 Color Laser Tutorial

Fantastic DIY 7 Color Laser Tutorial

Here’s another fantastic tutorial from Jay, a DIY lasers expert. See all of our DIY Laser Projects. I finally finished my 7 color laser! For the guts of the project, I followed this great Laser tutorial on HacknMod. (by rog8811) For the...
Wiimote Controlled 15 Ton Robotic Claw Arm

Wiimote Controlled 15 Ton Robotic Claw Arm

Although you can’t play with Wiimote controlled 15 ton grapples in the living room. This hack isn’t anything like the Lego Mindstorms NXT Robot controlled with a Wiimote or the Wiimote operated Lawnmower. This one has gone king-size. This...
Build a Sensory Robot with Arduino and Processing

Build a Sensory Robot with Arduino and Processing

An infrared proximity sensor on a robot can give it ‘eyesight’ to make sense of the real world. Cory Barton has used an inexpensive Sharp distance sensor, an Arduino and the open source Processing language to build his robotics project. The...