Hacks, Mods & Circuitry How-Tos — Page 3 of 26 « Hacks, Mods & Circuitry

How To: Illuminate Dark Drawers Automatically Whenever You Open Them Using LED Strips

At night, it can be pretty difficult to see what's inside drawers and cabinets, unless you have night vision or something.

How To: Monitor Your Drinking in Style with the Buzzed Buzzer—A DIY Breathalyzer Party Horn

Last week, the whole world ushered in the new year, celebrating the start of 2013 with family and friends, and of course, that little thing we like to call alcohol. But just because New Years Day is over doesn't mean the party is. And surely, there will be some assholes out there that will drink and drive this year. It happens. So, how can you make sure you're not one of those assholes?

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 Burrito Bomber: The "World's First Airborne Mexican Food Delivery System"

Everybody loves burritos. E-V-E-R-Y-B-O-D-Y.

How To: Build a Radio Controlled Watermelon Air Boat

There are tons of remote controlled cars and boats out there that you can buy or build, and you can add remote control functionality to almost anything. But if you really want to stand out, there are few things more attention-grabbing than this radio-controlled watermelon boat by the folks over at Starting Electronics. The body, obviously, is made from a hollowed out watermelon with a propeller and the parts from a remote controlled airplane mounted on a wooden block. A servo allows the prope...

How To: Inconspicuously Play Portal During Class on Your Graphic Calculator

The only bad thing about Portal is that you can't play it everywhere. You can't play it while camping, you can't play it in the car, and you can't play it in the waiting room at the dentists office (unless you lug around your laptop to all of these places. Weirdo).

How To: Turn a Game Boy Advance into an Old-School Miniature Arcade Cabinet

No matter how advanced technology gets, there will always be room for classic video games in the hearts of nerds everywhere. Mini arcades became very popular, as they allowed users to take arcade games on the go. As Game Boys and other mobile gaming devices appeared, the mini arcade slowly disappeared. Well, believe it or not you can combine the best of both worlds! Metku user Japala wanted to make his old Game Boy Advance SP "look cool again," so he turned it into a mini arcade cabinet.

How To: Add Inductive Charging Capabilities to a Samsung Galaxy Nexus, Note 2, and Other Android Devices

Inductive charging is already a reality on popular smartphones like the Samsung Galaxy S III and Google Nexus 4, and Apple has recently published a patent that would make inductive chargers a reality for the iPhone. There are also several phones that have the capability for wireless charging, such as the Samsung Galaxy Note II.

How To: Build a Solar-Powered Mini-Synthesizer Wristwatch

There's nothing worse than when you come up with a brilliant idea while you're busy with other things and then promptly forget it. Whether it's the perfect ending for your novel or a comeback you should've said during that argument with your roommate last week, it's always annoying.

How To: Make a Spot Welder for Cheap!

A typical resistance spot welder can range in price from about $200-$800, but with a little resourcefulness and a bit of free time, you can make one like this for about $10 or less.

How To: How Much Time Do You Spend Indoors and Outdoors? Find Out with This DIY Arduino Tracking Device!

How much time do you spend outside, as opposed to inside? Whether it's because you're working, studying or just have a bunch of errands to run, it may seem like the majority of your day is spent indoors. Ever wondered exactly how much time you spend indoors and outdoors? Now you can, thanks to this DIY Arduino-powered tracking device by Instructables user Gramsky.

How To: Turn Your Head into Narcissistic Cardboard Speakers

Do you know anyone that's infatuated with themselves and is currently in need for some good speakers? No? Well, just in case you do, here's a neat Christmas present idea for your narcissistic speaker-less friend. But, let's be realistic—why would you make these for anybody but yourself?

How To: Hide an Inductive Charging Station Inside Your Furniture

Inductive charging has been around since the days of Nikola Tesla, but it has yet to be integrated into a lot of popular devices. This is partially because it's slower and more expensive than methods that involve direct contact.

How To: Make a Super Secret Batman-Style Bust Switch for Your Batcave (Or Just Your Lights)

Remember the 1960's American television series Batman, with Adam West as Bruce Wayne? It was waaaaay before my time. The caped crusader that I'm more familiar with is actually this one... When I first heard of Adam West, it was him doing the Batusi on The Simpsons. I had no idea what was going on, so I looked up Adam West and his sensual dance and found myself face to face with the 1960's Batman.

How To: Make a Totally Geeky LED Pocket Watch That Tells Time in Colors

The cell phone may have replaced the pocket watch, but thanks to some clever mods and hacks, "old-fashioned" time telling is making a comeback. Smart watches that connect to your mobile device cannot only tell you what time it is, but also change the song you're listening to and let you know how many Facebook notifications are waiting for you. Frank Zhao, an electrical engineering student at the University of Waterloo, decided to do something a little different with his LED pocket watch. It h...

How To: Turn Any Wall Portrait into Your Own Personal Scooby Dooish "Eye" Spy Surveillance System

Remember how the bad guys in Scooby Doo would always use cut-out portraits to spy on people through walls? Well, unless your landlord is super cool, you probably shouldn't start cutting holes in your wall just yet, but you can make a higher tech version, thanks to NASA employee Mark Rober. Mark used a cheap picture frame and a portrait with the eyes cut out to make the "Scoob Cam," which also doubles as a surveillance device. He used an iPhone and an iPad to start a FaceTime chat, then taped ...

How To: Make Trippy EL Wire Headphones That Dance to the Beat of Your Music

At one time or another, we've all enjoyed the visualizations that came stock in Windows Media Player. I remember spending hours listening to my favorite album, putting the graphic equalizer on full screen, and getting lost in the flurry of colors that would dance across the screen. Well, now thanks to the imaginative mind of Instructables user yardleydobon, you can now recreate this rainbow-colored music visualizer right on top of your freaking head—with these trippy EL wire headphones, which...

How To: Customize Your Wireless Doorbell to Play Any Sounds You Want

Doorbells are useful and all, but most of them are boring as hell. They use the same old generic sounds to let you know when guests have arrived, as demonstrated below.

How To: 5 Easy Ways to Use Your Touchscreen Devices in the Winter (While Keeping Your Fingers Warm)

Winter is coming... and if you don't get that Game of Thrones reference, it's okay, you're still cool in my book.

How To: Mod a Calculator into a Custom Name Badge for Your Desk

There isn't as much use for old-school four-function calculators anymore since we all have them on our cell phones now. If you've still got one lying around, you can hack it to play recorded sounds, use it to make a metal detector, or turn it into a custom name plate that says anything you want...

How To: Use Bluetooth to Control Your DSLR (Or Any Device with an Infrared Receiver)

You can add Bluetooth capability to an old stereo, a retro mouse, or even your car's cassette deck. If you can think of a device, someone has probably found a way to control it with Bluetooth.

How To: Hack a Cheap Floating Globe into a Levitating Imperial Death Star!

Have any Star Wars fanatics in your family? Well, here's a great Christmas gift idea for those Star Wars fans who think they have everything... a freaking LEVITATING DEATH STAR!

How To: This Arduino Hack Lets You Control a Table Lamp Using Your Voice

The Jetsons may not have gotten everything right about the future, but even though we may not have flying cars or live in the sky (yet), one thing they imagined correctly was our electronics eventually being able to understand us.

How To: This DIY Umbrella Stand Alerts You of Rainy Weather Before You Walk Out the Door

Whether it's forgetting your driver's license or misplacing your cell phone, forgetting things at home can be a pain in the butt. Car keys, wallet, purse, papers, sunglasses—the list can go on. Sometimes I even surprise myself at the important things I forget... Oops.

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: Hack a Pair of Cheap Active Shutter 3D Specs into Light-Detecting, Auto-Tinting Sunglasses

Wouldn't it be awesome if your glasses could detect when it's bright outside and automatically darken? Well, the technology has been around for a while, but it'll set you back a few hundred bucks.

How To: Buid a Mic Stand Camera Mount/Steadycam/Crane Shot Camera Boom

I took a telescope mount from a tripod and converted it so it could be mounted on a microphone stand. For a step-by-step guide please visit my project at Make: http://makeprojects.com/Project/Mic+Stand+Camera+Mount+-+Steadycam+-+Camera+Boom/2770/1

How To: Convert Your Old Apple iMac G4 into a Cable-Ready HDTV

Most of us have traded our desktop systems for laptops, tablets, and mobile devices, meaning there's a lot of outdated hardware sitting in attics. Want to give your old computer a new purpose? Matthew Chappee turned his iMac G4 into an HDTV using the guide by Dremel Junkie. One thing to note before you take on this project yourself is that if you want to use it to watch cable, you'll need a converter box to get around the MPAA's HDCP restriction. But, a converter box is considerably less expe...

How To: Turn Your Android Device into a Customizable Thermostat for Your Home

A faulty or broken thermostat can be one of the most annoying things to ever happen to your house. It's always too hot or too cold, and you can end up wasting money on your electricity bill.

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.

How To: Hack Your Old Printer to Automatically Print Hashtag-Based Instagram Photos

It's hard to believe that a photo-sharing service could become as big as Instagram has. So big, in fact, that there are tons of websites, software, and products aimed at integrating it into our lives even more. Hell, you can even be Instagram for Halloween.

How To: Build a Deadly Motion-Activated Airsoft Turret Gun

It's tough out there on the battlefield, especially when your stuck in the trenches and your comrades are dropping like flies. There's no hope. At least, until the next airsoft battle.

How To: It's Raining Sweets and Treats! How to Make Your Own Pneumatic Candy Cannon

In this project, you'll learn how to re-purpose low-cost sprinkler parts into a high-powered CANDY CANNON. Be the coolest person on the block by building a pneumatic device that will launch candy 100 feet in the air—you can make it rain down all kinds of sugary treats!!!

How To: Light Up Your iPhone's Apple Logo in Old School Rainbow Colors

As far as logos go, few are as iconic and instantly recognizable as Apple's old-school rainbow emblem. No matter how sleek their products get, people are still nostalgic for the old, colorful logo, and this mod from Adafruit basically proves it. If you have some pretty decent soldering skills, you can make the Apple on the back of your iPhone light up like the old rainbow logo. In the video below, Becky Stern from Adafruit uses a kit with a replacement glass back, tweezers, screwdrivers, and ...

How To: Hack Your Mini-Fridge into a Vending Machine to Take Care of Freeloading Friends at Your Next Party

It always sounds like a good idea to throw a party... until the party gets there. Next thing you know, you're running around hiding anything breakable, and once everyone leaves, you're stuck cleaning up the mess. But the worst part is footing the bill for everything, and if you don't charge at the door, your chances of getting anyone to chip in are slim to none once the party starts.

How To: Build a Programmable Robot with Snap Circuits

Want to learn how to build a robot out of Snap Circuits? I'll show you how to combine Snap Circuits parts from three different sets (the Snap Circuits rover, Snap Circuits Micro, and the Snap Circuits motion detector) to make a simple programmable motion activated robot. For a complete step-by-step build of the robot, visit my project at Instructables: http://www.instructables.com/id/Hack-the-Snap-Circuits-Rover/

How To: Turn an Automatic Air Freshener Dispenser into a Silly String Launcher

The electric air freshener is one of those devices that seems like it could only have one possible function, but can actually be repurposed in a few different ways. If you're looking for a practical use, you can turn it into a bug killer, but it's also perfect for pranks.