How to Learn How to Use Electronics

In this article, I'll show you how to build a coil gun. A coil gun is a device that fires magnetic projectiles at high velocities, using electricity. Coil guns require no explosive propellant, therefor can be fired an infinite amount of time, providing that there is ammunition ...more

In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple pl ...more

As the largest wireless service providers in the United States, AT&T and Verizon Wireless carry some serious clout. Sadly, they use some of this power to heavily modify the Android phones that they offer. While smaller carriers like Sprint or T-Mobile are happy to just have t ...more

One of the best things about Christopher Nolan's Batman trilogy is how realistic he makes the caped crusader feel. Unlike the Joel Schumacher or even the Tim Burton versions, Nolan's world seems grounded in some level of scientific fact. But just how close is science to actual ...more

Computer crashes, fried hard drives, red rings of death, delinquent memory cards... nothing is worse than dysfunctional technology. In just a minute, your favorite and most used device has become the biggest headache of your life, frustrating you to the brink of madness. But w ...more

The Stun-Gun In this article, I'll show you how to make a small, weaponized highlighter. Before I get into how to built this device, let me warn you. This device is harmful! When used, it can cause burns and/or serious muscle spasms. The voltage is potentially deadly! DO NOT ...more

I was in college, and my 15-inch Sony Vaio laptop was my prized possession. It was my first PC and probably the most important thing I brought with me to my dorm — it was both how I completed my assignments and my primary source of entertainment. How could it turn its back on ...more

I know what you're thinking. Why spend time talking about another flashlight application when there are literally thousands of them scattered throughout Google Play? As it turns out, there is a void in the realm of flashlight Android apps. Flashing lights, strobe lights, cop l ...more

Samy Kamkar, the security researcher known for the MySpace Worm and his combination lock cracking skills (using an online calculator), is back—and this time, he's after your credit cards! Well, not really, but his latest project, dubbed MagSpoof, can spoof any magnetic stripe ...more

Over the next few months, I'll be focusing on building a fully functional, long range UAV. This series will consist of several in-depth articles on my progress and the steps involved, so you can follow along and build your own unmanned aerial vehicle! The budget is $800 and w ...more

Piezoelectric Energy In this article, I'll show you how to make a small, wallet-sized device that generates electricity from kinetic energy. The concept is simple: Piezoelectricity is the charge that is produced when certain solid materials (commonly ceramic and crystal) in r ...more

Rooting a mobile device may not be a big deal these days, but not being able to root definitely is. Even the Library of Congress, National Telecommunications and Information Administration, and White House can agree on that. Since the release of the Samsung Galaxy S3, the int ...more

This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catas ...more

Streaming media companies like Netflix and Hulu make deals with Roku to have their apps featured on Roku's remote controls, but there's an inherent flaw with this model: the buttons become useless if the app no longer exists. So, is there anything you can do to change those de ...more

The biggest problem with Netflix (which is hardly a real problem) is the overwhelming amount of content available for streaming. Browsing through profile-specific categories might help narrow down your search on something to watch, but some of those categories come and go with ...more

If you want to get started sniffing Wi-Fi networks, you usually need to start with a wireless network adapter. But thanks to a Wi-Fi sniffing library written in Arduino and the ultra-cheap ESP8266 chip, you might not need one. For less than $10 in electronics, you can build a ...more

In this article, I'll be covering Triggers and Coils, part two of the series (see part one here). Generally, a simple EMP generator consists of four components; a capacitor, a transformer, a trigger and a coil of copper wire. The transformer component can be varied, but the co ...more

You may already know that you can build a functional circuit on a sheet of paper with the graphite from a pencil, but you'd probably never think of using it to fix an electronic device. This same principle can be used to bring back a bricked phone, but can also repair a damage ...more

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more

After many years of rumors, the second-generation iPhone SE is here. At $399, it is the most inexpensive iPhone Apple has sold since the original iPhone SE came out. And while the new SE comes with Apple's typical five-watt power adapter, the smartphone supports fast charging ...more

Contrary to popular belief, augmented reality apps have been available for a while now. I remember using the Layar app (still available for iOS and Android) to explore nearby businesses and landmarks with varying success via an early-generation Android handset. It would be ha ...more

I think it's fair to say that every maker yearns for a 3D printer. You can replace circuit board connectors, fix your glasses, create ski grips, and make whole machines out of printed plastic parts—even a 3D printer. But without a 3D printer on hand, you can always resort to S ...more

At one point in time, Tesla coils were actually used for things like wireless telegraphy and electrotherapy, but as technology advanced, they shifted to a slightly more enjoyable purpose—entertainment. What's even more entertaining than using a Tesla coil? Building your own. O ...more

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, ...more

Anybody who was around in the '80s and '90s associates Sony with music still to this day, thanks to their wildly successful Walkman brand. And that's not even mentioning their major label record company. Indeed, the Tokyo-based electronics maker/media conglomerate has music em ...more

In this article, I'll show you how to create a simple yet effective way of scaring off intruders. Of course, there are methods around this approach, but it's great for office pranks and general fun. The project requires a little background knowledge in electronics and circuitr ...more

Defcon is the largest hacker conference with something for everyone, whether it be the talks, parties, villages, or any of the hundreds of events. In this guide, we'll take a holistic view at everything that goes into attending the con for the first time, from securing your el ...more

Before, the only way to really tell how your iPhone's lithium-ion battery was performing was to use tools such as Geekbench and Battery Life, but now Apple has included some quick battery health checks right into iOS 11. This feature is only available starting in iOS 11.3, so ...more

Ever wonder how all of those tiny chips and components can fit inside your laptop or smartphone? If you tried to squeeze them in there yourself, your laptop would quickly become too heavy for your lap, and your mobile phone would need wheels to stay mobile. The secret to mini ...more

By trial and error, I have found a good way to remove the door panel from a 2002 Ford Explorer (and other similar years). The first two steps can be done in either order, but doing them in the order I have listed below will prevent damage and scratches to the paneling. Remov ...more

Whether you're in an airport, restaurant or waiting room, the insidious grip of televisions on human life is omnipresent. Sometimes it's nice to talk to other human beings while looking at them directly—actually hearing what they have to say. Thankfully, there's a DIY device ...more

Hello, Null Byte! Mkilic here. I doubt anyone knows I even exist on Null Byte, so hopefully this post will allow me to become more involved in the community and also help me learn even more. This project is somewhat similar to OTW's article here, and pry0cc's here, in which b ...more

If you shatter your new Samsung Galaxy S8 display, then be prepared to pay a hefty repair fee for that bezel-less baby. Yeah, you already purchased Samsung's latest flagship for approximately $700. The world's first Infinity Screen stares at you like it would never be anythin ...more

If your Android phone was made by Samsung, LG, HTC, or any other manufacturer that likes to apply skins on top of stock Android, then your camera app is tied to the custom gallery app that was preinstalled on your device. In other words, when you tap that little image preview ...more

Malware attacks on mobile phones are reaching an all-time high and it looks like companies like Samsung are doing all that they can to prevent any unwanted hackers from accessing its sensitive user data. When it comes to Samsung, well, they get enough flack already being all ...more

Kirsten Dunst is turning Japanese in short skirts and thigh highs. The art world crashes Hollywood in this video piece starring Dunst, directed by McG and produced by world renown Japanese artist Takashi Murakami. Dunst does cosplay, dancing through the streets of Tokyo to Th ...more

The DIY industry is booming, despite the desperate blackmailing of society by finance capitalists. Companies like Adafruit and Makerbot are grossing well over a million dollars a year, and Evil Mad Science Laboratories just recently dedicated themselves to running a full-time ...more

All across the world, Nexus 7s have been secretly living a double life. The clean, simple look of the stock Holo user interface is nice if minimalism is your thing, but to softModders like me, Holo is bare, lacking style, overly blue, and an eyesore. It gets the job done, but ...more

Oh, LifeHacker, we love you. You've brought us so many handy HowTo's: Hack Wireless Internet, Bypass Blocked Websites, Convert a Laptop Into a Projector, Watch TV & Movies on the Web For Free, 10 Must-Know Google Privacy Settings, and more. And now, another great one: LifeHac ...more

Video game makers have never had great name recognition amongst the American public. Shigeru Miyamoto, Cliff Bleszinski, and Will Wright are names most Americans can't be bothered to remember, whatever their contribution to games have been. Most people are familiar with their ...more

Each generation of smartphones ushers in a new set of top-of-the-line specs, with processing power, battery size, and display resolution growing by the year. These headlining features get the most press, but there's one unsung hero that has the potential to make the biggest di ...more

For the uninitiated, it can be difficult to buy that special hacker in your life a perfect holiday gift. That's why we've taken out the guesswork and curated a list of the top 20 most popular items our readers are buying. Whether you're buying a gift for a friend or have been ...more

With just two microcontrollers soldered together, you can inject keystrokes into a computer from a smartphone. After building and programming the device, you plug it into a desktop or laptop, access it over a smartphone, and inject keystrokes as you would with a USB Rubber Duc ...more

I record close-cropped videos and take macro still shots with my smartphones on a daily basis, so as you would expect, I spend a lot of time cleaning these devices. Over the course of a couple years, I've fine-tuned my cleaning regimen, and at this point, it's down to a near-s ...more