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How To: Build a laser motion sensor mouse trap

Mice, cute as they may be, are an unwelcome visitor in many a home. This video tutorial provides step by step instructions on how to hack a wireless electronic laser mouse trap from an automatic garage door opener and a computer mouse. Find out where those little pests are going. Watch this video tutorial and learn how to build a laser motion detector mouse trap.

How To: Turn Your Old NES into an All-In-One Retro Gaming Console

While the PlayStation and Xbox models may rule the current world of gaming, there are still those who love to keep it old school. The grittiness, toughness and nostalgia that is laced throughout old gaming consoles appeals to many people. Every time I play Donkey Kong 64 (with the expansion pack of course!), I revert back to the days of Sunday morning cartoons and only worrying about homework.

News: Trade in Your Grill for Japanese LED Teeth

In the far away land of Japan, gold is out, glow-in-the-dark is in. LED "grills" were recently conceived of by two Japanese designers/hackers for a winter advertising event at clothing store Laforet Harajuku. The LED teeth attachments quickly became a hot item. Foreseeably, one of the two designers demonstrating the teeth in the video above is the familiar Daito Manabe (our favorite "self-electrocuting" mad hacker). Manabe's partner, Motoi Ishibashi, came up with the idea when "he saw a video...

How To: Build a Mini Hovercraft

Create a miniature hover craft from the fan, polystrene or Styrofoam plate, batteries and double-sided scotch tape. It really works. Powered by two 9 volt batteries you can use paper plates for the body of the hovercraft if need be. This is a cool cat toy or just a household hack.

How To: Cut and Sand Your Micro-SIM into a Nano-SIM Card for Your New iPhone 5

Planning on getting the iPhone 5, but want to keep your SIM card? The new nano-SIMs that manufacturers are adopting will be even smaller than the micro-SIMs that most of us currently use. It's fairly easy to cut a regular SIM down to a micro-SIM, but because the nano-SIM will be thinner as well as smaller than the micro, cutting it down to size will require a little more work. Photo by Tech Digest

How To: Make a soldering iron out of a graphite pencil and jumper cables

Now this is one how-to video you probably don't come across often. While most jewelry makers and welders probably purchase their soldering irons, it's actually possible to make your own soldering iron out of graphite pencil, car battery and jumper cables. We know it sounds like you're going to end up lit up like those much-parodied dads trying to set up Christmas lights on the rooftop during the holidays, but this process actually works quite well.

How To: Build your own HD DVR

Want to break free from the confines of DVR land? If you're tired of spending all the money to download program listings from your DVR, then it's time for a change. If you don't want to mess with DRM files anymore, but want to backup your system, then MythTV is the way to go. You'll need to build your own PVR (personal video recorder) with thanks to MythTV, and it will end up costing you less than $500. Well worth the investment. The MythTv software is free and open source, so you just need t...

How To: Unlock Your Front Door Without Keys Using This DIY Keyfob Entry System

Keys are on the way out. They're clunky, take up precious space, and slow you down when you have tons of identical-looking gold ones on your keyring. Everything we can open with keys can now also be opened with wireless technology in just a click—so why use keys anymore? Sure, you can pay hundreds of dollars for an automated lock system on your house—but why do that when you can build it yourself!

How To: Make a small robot gripper out of household items

A perfect project for the budding roboticist in you! This video shows you how to make a small robot gripper using basic household items. Press the button and make the robot's come together! You will need: a small blow torch or butane lighter, a glue gun, a dremel or rotary tool (along with several different bits), the free cutting pattern, a permanent marker, a micro servo, some small nails or pins, a small piece of Plexiglass and a paperclip. If you don't have access to a dremel, you can fak...

How To: Test an electrolytic capacitor with a digital multimeter

If you're working with a capacitor and wondering whether it's working or not, this video will help you find out. You're going to need a multimeter, available at any good electronics store. This device is capable of testing many different electric devices, and capacitors are one you can test. Set the dial, hook it up and see if things are working! These multimeter devices are essential in the world of home electronics, so put one in your tool kit today!

How To: Build a simple Van de Graaff generator

Want to build a Van de Graaf electrostatic generator? Who doesn't! This video tutorial will show you how. To follow along at home, you'll need the following items: a rubber band–the longer the better–, a small motor, a small glass object like a Christmas tree light, and some type of plastic roller. For simple, step-by-step instructions, watch this Van de Graaf-buildin' how-to.

How To: Turn an Old Scanner into a Keyboard Light

Do-it-yourselfer Kipkay salvaged parts from an old parallel port scanner and made a flexible, super-bright light in this how-to video. The modification is done by extracting the lamp and running it through clear tubing. He mounted the new lamp above his keyboard for night typing. Watch this video tutorial and learn how to turn an old scanner into a keyboard light.

How To: Build a laser tripwire that can trigger anything out of a photoresistor

This video, incredibly short for it's massive content, will teach you how to make a laser tripwire that, combined with a photoresistor, can trigger just about any device. You can make traps, alarms, awesome party decorations, and all sorts of other awesome things with this easy-to-make device, provided you have a soldering iron and a local electronics store to buy some parts.

News: Want a Drink? The Arduino 'Inebriator' Will Pour You 15 Different Cocktails

Who needs to go to bartending school when you've got the Inebriator to mix your favorite drinks for you? Want a cosmopolitan? No problem. Press a button. Want a tequila sunrise? Sure thing. Press a button. As long as you've got a good supply of liquor and mixers, the Inebriator is at your command. So, what exactly is this Inebriator thing? Well, it's a robotic bartender that can automatically pour 15 different pre-programmed cocktails. With 9 different liquors and 7 mixers on board, it's got ...

How To: Build Your Own Internet Radio Player, AKA Pandora's Box

Growing up, my family would get together in the living room every Saturday night and gather around my mom's old boombox radio and listen to Disco Saturday Night on 104.3 FM from 6 p.m. to 2 a.m. (the show ended in 2008 after 14 years of consecutive shows). The old ladies in the picture below are the best representation of these nights that I could find. Now, the radio is all but dead (just like the old ladies above) in this world of music streaming services and torrenting. All of our music is...

How To: Build a Cheap Arduino Tachometer to Measure the RPMs of Spinning Fans (And More)

A tachometer, or RPM counter, is a device that measures the speed of something that's rotating. In a car with a manual transmission, the tachometer can be helpful in determining when to release the clutch and how much gas to give when you're taking off. This DIY Arduino Tachometer by Chris on PyroElectro uses an infrared transmitter and receiver break-beam pair to measure the RPM of a computer fan. When the fan blade passes between the transmitter and receiver, the IR beam counts the interrup...

How To: Make the world's loudest alarm clock

In this video, we learn how to make the world's loudest alarm clock. If your alarm clock does not wake you up, this is for you! First, you will need to take apart your alarm clock and find the wires that are connected to the tiny speaker that is inside of it. After this, grab two very large horns that have enough decibels to wake you up. Now, find an old 12 volt ac adapter and solder two wires from the adapter to the spot where the alarm sends signals to the alarm clock. Now, test out your al...

How To: Jailbreak ANY iPod Touch, iPhone, or iPad on ANY Firmware!

www.jailbreakme.com has recently created a new way to Jailbreak any iPod Touch, iPhone, or iPad, regardless of the firmware it is running. It is EXTREMELY easy! If you were thinking about Jailbreaking, but were afraid you did not have the technical abilities to do so, now you can! What is "Jailbreaking?"When someone says that their iPod, iPhone, or iPad is "jailbroken," they mean that they have installed Cydia, a third-party app store.Why Jailbreak? Why not just stick with the original App St...

How To: Make LED-enhanced anti-paparazzi glasses

This video teaches us how to prevent those pesky paparazzi from invading our privacy. It suggests buying a pair of safety glasses that have lights attached at the sides. Then, remove the lights, and replace the existing resistors with higher-powered ones, and the lights with infrared LEDs. When the press tries to film you while you're wearing these at night, the cameras will see bright, menacing lights where your face should be. This how-to is presented as a joke, but it would be hilarious to...