Gadget Hacks How-Tos

How To: Trick Your Twitter Followers into Thinking You're Somewhere Besides Where You Really Are

There are plenty of reasons not to use location information when you tweet, whether you're trying to stay safe or just don't want your crazy ex showing up while you're in line at the grocery store. But a new website called 'Please Don't Stalk Me' could actually make broadcasting your location work to your advantage—it lets you tag your tweets with any location you choose, anywhere in the world. Playing hooky? Send a tweet from 'home' to take care of any suspicion from your boss and coworkers....

How To: Moving Soon? This DIY Alarm Will Make Sure Your Stuff Stays Safe in the Truck Overnight

The worst part of moving into a new place is, well...moving. It's tedious, a lot of hard labor, and it can take forever, and don't even get me started on all those labels. It's also one of the only times in your life when everything you own can be stolen at once, since it's sitting in a movable container. Rather than risk losing everything, try this DIY Moving Truck Alarm System by Tim Flint that lets you know when the loading door is opened so you can catch would-be thieves red handed.

How To: Planning on Buying an iPhone 5? Here's How to Get the Most Money for Your Old iPhone 4 or 4S

Apple is notoriously cryptic when it comes to the reveals of its new products, and as usual, they've kept us guessing about the release of the iPhone 5 (or "New iPhone?"). It's expected to be officially revealed on September 12, and rumor has it that sales will begin on the 21st. Though the whole world seems to be anxiously awaiting the announcement, there has also been some controversy surrounding the iPhone 5's production. With the high number of suicides and poor working conditions at Foxc...

How To: Access the Boot Menu and BIOS in Windows 8

One of the most played-up features of Windows 8 is that it's so much faster than previous versions. So fast, in fact, that Microsoft had to change the way that users access the BIOS because 200 milliseconds just isn't enough time to hit the right key. It may take some getting used to, but it's probably a welcome change for most people, considering that the "right" key is different depending on what type of computer you're running the OS on.

How To: Find Out If the FBI Is Keeping Tabs on Your Apple Device (UPDATED)

It's no secret that there's a lot of surveillance going on these days. It's easier than ever to end up in a database, and even former government agents are speaking out about the atrocious amount of spying being done against our own citizens. They've targeted our laptops, cars, IP addresses, and now they're coming for our iPhones. AntiSec hackers managed to get their hands on a list of over 12 million Apple UDIDs (Universal Device IDs) from an FBI computer, and they published 1,000,001 of the...

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: Disguise Your Gaming Addiction with This DIY Coffee Table Arcade Machine

Love old-school games like Pac-Man and Space Invaders, but don't have the extra space for an arcade machine? Get the best of both worlds (and save some cash) with this DIY Arcade Coffee Table built by Sam Wang. He started with just an ordinary IKEA table and drawers, then cut out a space for an LCD monitor. The controls (including joysticks!) are mounted on the drawers so that when they close, it just looks like a normal coffee table. Once everything was in place, he added a glass table top, ...

How To: Satisfy Your Need for Speed with This DIY Arcade-Style Racing Cockpit

Racing games are always better when you have a steering wheel instead of just a handheld controller. And those old-school arcade racing cockpits? Even better. Matthew Boyer decided to bring the feel of a racetrack into his living room with this insanely awesome DIY arcade racing cockpit. He built the frame out of plywood and a real racing seat, then added LEDs, surround sound, and a 32-inch flat screen. The pedals, shifters, and steering wheel are laid out to match the measurements in his rea...

DIY Portable Power Pack: Turn Your Backpack into a Solar-Powered Gadget Charger

A smartphone is pretty much useless with a dead battery. When you're out and about, it can be hard to find a place to plug in (if you remembered your charger, that is). But this DIY solar panel backpack made by electrical engineer Theodore Protasiewicz will help you use the scorching sun to your advantage and make sure that your gadgets are always ready to go. Theodore started with just a normal backpack, some solar panels, 18 gauge wire, and a USB port and hacked it into a traveling solar ch...

How To: Your Guide to Finding Free Creative Commons Images and Other Media Online

Creative Commons is awesome—really. If an image, video, or audio file is tagged with a CC license, that means you can use it as long as you give appropriate credit to the owner. For bloggers with no money for pricey stock media, it's a godsend. When you license your own media under CC, you can choose how you want it to be used by others and whether or not it can be used commercially.

How To: Stay Focused and Be Productive Online

The Internet has had a huge influence on many areas of our lives, but, in particular, has resulted in nothing short of a revolution in the way we work. The web has offered the sort of flexibility to the individual that few people would have dreamed of just a couple of decades ago. And where once a global marketplace was available only to a handful of multinational corporations, today thanks to the Internet, we can all access it.

How To: Geekify Your Business Card with This Custom PCB Résumé Flash Drive

Whether you're job searching, networking, or just giving your information out to someone you just met at a bar, this circuit board business card made by Brian Carrigan will make sure no one ever forgets meeting you! Sure, you could buy a customized USB business card on some online shop, but if you're trying to emphasize your geek cred, why wouldn't you make your own PCB card from scratch? Carrigan used a USB controller and added an Atmel AT45DB series flash chip so that it could store his res...

How To: This DIY Baby Monitor Uses Lasers and a Wiimote to Detect Your Child's Breathing

Proud new papa Gjoci wanted to make sure he never had to worry about whether or not his baby girl was breathing, so he built this amazing breath-detecting baby monitor using a Wii remote, a printed circuit, and a laser. First, he opened up the Wiimote and took out the camera, then used an Atmel Atmega88 microcontroller to make a printed circuit. Low-power infrared lasers shine on the baby's clothing and the Wii camera detects the motion of the baby's breath, activating an alarm if the motion ...

How To: Ditch Your Doorbell for This Front Door RFID Lock That Lets Whoever You Want In (Whenever You Want)

Hate answering the door, but don't trust your friends with a set of keys? This RFID front door lock made by Steve Pomeroy will solve all your party-hosting problems. It reads the RFID tags in his friends' public transit cards and decides who's allowed in based on "groups" that Steve defines. And I have to say, it's also rather stylish. It's controlled by an Arduino serial console and a custom Android app to add and remove cards. The reader can store 50 or 100 tags at a time and allows 7 diffe...

How To: Undo Instagram's Photo Filter Magic with Normalize for iPhone

Tired of the Instagram wave? If you're sick of having to view the world through low-contrast and sepia-toned filters, there's a way to get them back to how they're supposed to look, and it's called Normalize, which undoes the magic filtering that Instagram and similar photo filter apps provide. The process of un-Instagramming your (or anyone else's) photos with Normalize is perhaps easier than Instagramming them in the first place. All you need to do is copy and paste them into the app and wa...

How To: Turn a Playing Card into a Super Simple Solar-Powered Battery Charger

You can do a lot more with playing cards than you'd think, like turn them into gift boxes, fling them like throwing stars, and make them levitate or disappear. You can even make them recharge your batteries. Instructables user Shawn Frayne was sick of having a bunch of dead batteries lying around, so he developed a cheap and easy way to always have a charged one within arm's reach by turning a normal playing card into a super simple solar-powered battery charger for rechargeable AA and AAA ba...

How To: Don't Have Photoshop? Use the Free Web Tool Cropp.me to Crop and Resize Images Easily

Cropping images can be a huge pain if you have a bunch to do at once. Even if you have Photoshop or a similar program, the process of opening each individual photo and cropping them one at a time can take forever. A free web-app called Cropp.me makes that task a lot easier by auto-cropping your photos to whatever size you choose. All you have to do is upload an image, choose what size you want it to be, and click Cropp My Images. You can choose from a list of sizes or input a custom size of y...

How To: Find Out What Personal Data Your Mobile Apps Are Leaking with Mobilescope

If you use apps on your smartphone, chances are you have no idea what those apps are doing with your information. Just this year, there have been several scandals involving apps transmitting user data, like Path uploading users' entire address books onto its servers, HTC's Security Flaw, and Brewster exposing users' personal information (even Ashton Kutcher's). A new service called Mobilescope wants to make sure you always know where—and to whom—your data is going. Lots of apps copy your cont...

How To: Turn Your Smartphone Pics into Extra Cash with These Android and iPhone Apps

Everything is documented these days, thanks to the Internet and mobile devices. Most people who own a smartphone use it to take lots of pictures. If you're one of those people, an app called Scoopshot can help you turn some of those photos into extra cash. Scoopshots lets you post your pics so that news organizations can pay you to use them. Companies can also post tasks, so if someone is looking for a particular photo in your area, you can accept the task, go take the photo, and earn money f...

How To: Make Your Own Propane-Fueled Cotton Candy Machine at Home

Cotton candy is a treat generally reserved for carnivals, fairs, and other events that don't come around often enough. Through some clever construction and about $45 in materials though, you can have all the sugary substance you could ever want with this awesome DIY cotton candy machine. All you'll need to construct your own are two dollar store stainless steel bowls, a fan motor, a few odd screws and bolts, a drill, and a propane torch. Check out the tutorial video below. As an added bonus, ...

How To: Get Your Free 90-Day Trial of Windows 8 Enterprise Edition Today

Yesterday, Microsoft announced that Windows 8 RTM is available to its MSDN subscribers and TechNet Professionals. But they've also included a free 90-day trial for developers that anyone can download, no subscription needed. The download is actually for the Enterprise version, so after the 90 days are over you won't be able to upgrade, you'll have to do it from your original operating system when the non-Enterprise version is released in October.

How To: Cloak Your Private Email Address into an Anonymous, Disposable One with Gliph

Want the convenience of a throwaway email address without all the hassle? How about anonymous text messaging so you can get to know someone before giving them your real information? Gliph has you covered. Gliph is a service that lets you create an identity around a set of three to five symbols called "artifacts" instead of your name, phone number, or email address. You choose how much information you reveal, and anytime you communicate with someone else who has Gliph, the data is protected us...

How To: DIY Pulsating Light Rod Speakers That Dance to Your Music

If you've found your speakers to be lacking in the visuals department, this is just the mod for you. Using 3" PVC, you can turn your speakers into light-up glow rods that pulse to the beat of your music. You'll need some electrical skills and experience soldering to get this one together, but otherwise it's not all that complicated. The main components you are going to need are speaker drivers, PVC pipes, LEDs, and the necessary cabling for those devices. The device works best with higher vol...