Use Switches Safely for Your Electrical Needs

Fireworks are the best part about the Fourth of July and other celebrations, but they can easily cause accidental injuries. It's both safer and more fun to set them off remotely, so we'll hack some standard fireworks with nichrome wire, a relay, and an Arduino to ignite remote ...more

Clumsiness is the great equalizer when it comes to smartphones — it makes no distinction between the most expensive flagship handset and cheaper mid-range models. A hard drop onto pavement will usually result in a shattered screen, regardless of how pricey your device is. And ...more

Remember the arcades? Were you saddened when they closed up one by one, leaving no outlet to actually go out and socialize while you played video games? With all the home consoles and internet connectivity, gaming has evolved, but the social factor has been eliminated. Sure we ...more

Don't want one of your Facebook "friends" knowing your status updates? Prefer to keep a few of those "friends" out of your photo albums? Would you like to prevent a few "friends" from accessing your address? The simple answer would be to remove all of those so-called friends— ...more

The internet is something most people rely on, so when you buy a used laptop without a wireless card or yours needs to be replaced, it's easier to do it yourself. Having someone else do it can cost more than you think, so here's an easy way if you own a Dell Inspiron E1505. R ...more

For most people, New Year's Eve means watching the ball drop in Times Square. It means celebrating the New Year with friends and family. Countdown parties, clocks, confetti... passing out before the clock strikes midnight because you drank too much. But there's one more thing, ...more

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...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

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

Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons. Presumably, the sonic screwdriver creates sonic vibrations to achieve whatever the doctor wants by vibrating th ...more

I love my laptop. It goes wherever I go. Unfortunately, that means that it also gets pretty grubby after a while. The screen gets dusty. The frame gets smudgy. The spaces between the keys fill up with crumbs of questionable origins. And my desktop? That thing is a dust bunny m ...more

Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more

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

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

A relay is an electrical component that works like a light switch, where it's turned on or off with an electrical signal. By connecting a relay to a Wi-Fi connected microcontroller like an ESP8266, you can build a connected switch that can be controlled from the web browser of ...more

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. Before starting on this project, there are a couple of videos you should check out, because yo ...more

The best part about April Fool's Day is that everyone is fair game. Even big tech companies like Google and Twitter get in on the action every year. It encourages even the most uptight, unfunny party-poopers among us to have a little fun driving each other crazy with pranks — ...more

Presented by Apartments.com When looking for a new apartment, it's hard not to notice the improvements (on large and small scale) needed prior to moving in. While your landlord may be taking care of new carpeting, cleaning the central air vents, and fresh paint on the walls, ...more

In the past few weeks, you've already learned how to make your bike light up at night with some DIY rim lights and handlebar lights. But how about something a little more functional? Instead of using those tedious hand signals (which drivers don't even understand), spruce up y ...more

Hello! This post is about the electrical socket. Imagine that somebody pulled the cable out of the possible protection outlet too fast? The result can be seen on the following photo. What to do next? Step 1: Preparation First, make sure that your work will be done in a safe m ...more

Over time, the dryer belt can become hard and brittle when the drum is turning loud noises such as squeaking, squealing or thumping noises can occur. Replacing the belt is an easy task for the do-it-yourselfer. All that’s required is a few simple tools. Here’s a step-by-step g ...more

Smartphones and tablets are great for watching movies and videos while you're out, but at home, the screen is just too tiny. There are quite a few projectors on the market that work with mobile devices, but they can get pricey. The good news is that it's pretty simple to hack ...more

Your iPhone's Messages app has some impressive new features and changes with iOS 17, and you've probably already noticed some of them just by using the updated app. But there are less apparent features, even hidden ones, that have likely eluded you that you're going to want to ...more

Google's feature drops for Pixel devices have added fun and useful new abilities, such as AR effects for Duo, Call Screen automation, scheduling Dark Mode, and Quick Access Wallet for Google Pay, that are exclusive to the company's line of smartphones. The latest feature drop ...more

Not all threats to our privacy come from hackers thousands of miles away. Often, we just want to keep our data safe from those around us, who may snoop in our phones or demand we reveal our secrets. That's where BlackBerry Locker comes in. Starting with the BlackBerry KEYone, ...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

The menu bar is a great place to perform quick searches, track battery life, and switch Wi-Fi networks on your Mac, but it can do way more than that if you let it. I've rounded up some menu apps below that not only have features that will boost your productivity, but are light ...more

The integration of technology into automobiles is becoming more and more widespread each year. Tesla's Model S features a 17" display in the middle of the dash with navigation, music control, and even an Internet browser. Mercedes is working on incorporating Google Glass into ...more

War leaves a lot of stuff behind. Torn families, delegitimized institutions, mass graves, and unexploded ordinances litter the post occupation landscape. Whether or not you have driven the imperialist out, or are still in the phase of armed resistance, you will need the abilit ...more

If you pay close attention, you might notice that the screen on your Android begins to flicker or pulsate when you lower the brightness past a certain point. This is a result of the AMOLED technology Samsung, among other manufacturers, use in their displays, and the way that t ...more

It's easy to run Kali Linux from a live USB on nearly any available computer, but many publicly accessible laptops and desktops will be locked down to prevent such use. School, work, or library PCs can be secured with a BIOS password, which is often an easily recovered default ...more