Circuit Board Articles

At night, it can be pretty difficult to see what's inside drawers and cabinets, unless you have night vision or something. Sure, you can turn on the light, but sometimes you're in such a hurry that you don't have 5 seconds to walk over to the light switch and turn it on. Perh ...more

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 a ...more

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. So, enlist the help of a little unmanned airsoft artillery with this DIY motion-activated a ...more

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. Wit ...more

Have an older car with nowhere to plug in your iPod? Rather than paying to have one installed, you can mount your iPod nano on your car's dash like Redditor hyeinkali did in his 2001 Honda Accord. Normally, there's just a boring digital clock between the air vents, but it's pe ...more

Why do we still need to plug in our phones to charge them? Wireless charging exists, and has for quite some time, but most manufacturers don't include it in their devices. When it comes to the Samsung Galaxy S4, you can buy a QI-compatible wireless charging kit, but between th ...more

For most people, the battery life on a DSLR is more than sufficient, but if you want to do a really long exposure or time-lapse, one charge might not last long enough to get the shot you want. You can always connect it to an extension cord to charge while you shoot, but that c ...more

A deck of cards may be a magician's best way to demonstrate his or her's sleight of hand, but for the prankster, it's the perfect way to deliver a shocking 300 volts of electricity! And that's exactly what I'm going to show you how to do today. Stuart Edge used it in his "Elec ...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

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

A step-by-step guide to replacing the side brush motor on bObsweep Standard or Pethair. Follow the video or multimedia directions in order to open up bObsweep, remove the main board, replace the side brush motor, then close your vacuum for future use. Video: . This repair requ ...more

Apple is known for its dedication to design, attention to detail, and for its apparent belief that its products are half device, half art. If you've ever felt similarly about that latter point, or had a desire to hang your iPhone on the wall, Grid Studio might just have the pi ...more

The internet is constantly under siege by bots searching for vulnerabilities to attack and exploit. While conventional wisdom is to prevent these attacks, there are ways to deliberately lure hackers into a trap in order to spy on them, study their behavior, and capture samples ...more

Both bObsweep Standard and Pethair models have two bumper sensors inside their covers. Whenever Bob runs into an obstacle, the sensors tell Bob to back away. If bObsweep does not change direction after bumping into something, the following guide may help you fix this. Video: ...more

Compared to Apple's products like the iPhone and iPad, Android phones and tablets are very flexible devices. For instance, you can set a new home screen, replace the lock screen, or even beam files using NFC — but that's just the software side of things, and the flexibility go ...more

The USB Rubber Ducky is a well-known hacking device in the cybersecurity industry, but it needs to be preprogrammed before it can be used. That means it's not easy to issue commands to a target computer since you can't interact with it from afar after plugging it in. And if yo ...more

The guide will walk you through a power switch replacement on a bObsweep Standard or Pethair. It includes: Opening and closing bObsweep Removing and re-installing the battery Removing the main board and power switch Video: . The instructions for this repair are the same for b ...more

Biking at night is dangerous. Seriously. If you've ever taken a night ride, you've probably experience a few close encounters with a set of headlights. Which is why you use bike lights—to make yourself more visible. Problem is, unlike modern car lights, bike lights don't turn ...more

A FGPA is chip that is programmable with the computer to create circuit. It is a totally different type of programmable board compared to an Arduino for example. The Arduino will follow lines of codes to generate the necessary outputs. A FPGA won't however read lines of code, ...more

Stand out from the high street fashion clones with stuff you’ve fashioned yourself. It’s easy to take old pieces of electronic junk and transform them into all sorts of fun ‘n’ funky geeky accessories. Like a totally useful tote bag, a what-on-earth-is-that wallet and a bedazz ...more

If you've ever searched for a new job online, chances are you've been completely overwhelmed by the process. Clicking through pages and pages of semi-relevant job postings, sending out hundreds of emailed résumés, and filling out applications is tiresome and dull. Now, thanks ...more

While obvious, it's a lot more difficult to hack into a locked computer than an unlocked computer. As a white-hat hacker, pentester, cybersecurity specialist, or someone working in digital forensics, there's an easy solution — make it so that the computer won't fall asleep and ...more

You must have seen some expensive mp3 players and CD players which have LEDs fixed on them and they dance to the tune looking really pretty. Imagine you could make your own LEDs and configure them to dance to Daft Punk or Swedish House Mafia. I’m going to tell you how it can ...more

The bumper for bObsweep Pethair and Standard are installed the same way. It holds the sensors that allow Bob to see any obstacles in his path. If a repair of the wall detection sensors is needed, the steps for replacing the whole bumper are the same when working on either bObs ...more

I obviously do a lot of Steampunk projects, but there are a ton of things out there that I haven't tried yet. So, in an effort to broaden my horizons, I recently taught myself how to use Arduinos, which I plan to incorporate into some of my future Steampunk builds. Since ther ...more

In this article, I'll be explaining the basics of how microcontrollers work, physically and virtually. First off, microcontrollers are no simple thing, so don't be discouraged if you find it mind-boggling! The world of microcontrollers is fascinating, engaging, and an awesome ...more

Over the years, I have enjoyed playing with Asterisk. I have found Asterisk to be extremely powerful and fun to play with. There are several books and many scattered how to articles out there, but most are outdated and the information required to build Asterisk from beginning ...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

How to Build a Basic BirdhouseMaybe you were outside in your back yard and you noticed that it seemed a little lonely and empty. Our maybe you have young kids that love to experience wild life in their own back yard. Whatever reason you have for searching out this article, you ...more

Garlic is a great addition to many delicious recipes but it can often be a very time consuming process even just to peel. This article will show you a great trick that will make peeling garlic fast and easy. If you're new to cooking or haven't yet learned the trick that's des ...more

I was looking around on this site and this article caught my eye. It was about hiding text in ADS or Alternate Data Streams. While this is nothing new in the tech world, it seems that more and more people are looking at ADS for one reason or another. Years ago, I created a si ...more

Introduction In this article you will find instructions to replace a broken LCD screen of a LG KF600 phone. To execute these steps a new replacement LCD should be bought beforehand. Stores that sell replacement KF600 LCD screen can be found on the Internet. These instructions ...more

It isn't a new gadget, but the EyeClops Mini Projector still makes a great stocking stuffer for Christmas Day. It's great for kids to play with, but for techies— it's sure to be something fun to hack and mod this holiday season. The EyeClops Mini Projector looks more like Wal ...more

Destroy Black Ops Noobs First of all, these tips are great for any consoles that run Black Ops. Whether it be your Sony PS3, Nintendo Wii, XBox 360 or your PC. Internet Connection Before you put the game in to your console, make sure that your internet connection is consist ...more

Zynga games has released their ZLotto feature that you can use to get exclusive prizes for FarmVille, Mafia Wars, YoVille, PetVille, and FrontierVille! In this guide I will discuss all the aspects of this feature, how to use it, and some tips for success. Game Prizes FarmVi ...more

Many new players wonder how one actually gets a rating in SCRABBLE. Now, we're talking about an official rating, not one you would get on SCRABBLE Beta or with the ISC WordBiz player — I mean an "Official SCRABBLE Rating". A rating that allows you to play in the National SCRAB ...more

It's 1976. The hottest arcade game on the market is Blockade (or Blokade), an 8-bit maze game for 2 players. You and your opponent must move your characters around the screen in 90-degree angles, leaving a solid line behind them. Whoever runs into one of the solid lines first, ...more

Choose and buy a Guitar - A beginners guide to the Guitar. The guitar is one of the most popular musical instruments there is, appealing to both the young and the not so young and spanning different musical genre's such as blues, pop, rock, classical and many more. So, Im gu ...more

Health, safety and security are three main issues which determine if your cruise is a successful vacation. Health Health is a big issue because if one person gets sick, the entire ship can become infected. Gastrointestinal illness is the most common illness aboard cruise sh ...more

The first day of Hanukkah is here, the day you start lighting the candles of the menorah. So, why not ditch the wax and light the "lights" this year? (Skip ahead to see the LED menorah) Hanukkah is a Jewish festival that lasts eight days from the 25th day of Kislev, which th ...more

When I was attending college, my friends had a phantom thief in their dormitory. Almost every night, a different item of food would go missing, never to be seen again. There was constant speculation as to whom the thief was and how to catch them. Security cameras were deemed t ...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

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 be showing you how to make a simple yet effective static electricity generator. Basically, this device allows you to carry a constant static charge on your body and discharge it on anything grounded or of opposite polarity. The electricity generated is ar ...more

Building Material Request Links for Brick, Nail, Wooden Board Update: Watering Can Request As the Make a Wish feature from the gift box often end up with errors, here are simple directions to create a personalized gift request that will allow your friends to send you the ite ...more

Welcome to Microwave Energy—the next part of my Making Electromagnetic Weapons series. For the Electromagnetic Pulse Generator, check out the last three articles (One, Two and Three). I'm sure almost all of you have used a microwave at some point in your lives. As a child, I ...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

Etching your own circuit boards is tons of fun, but etching requires strong chemicals to dissolve the copper plating on blank circuit boards. The normal ferric chloride solution works well, but can be expensive and leaves permanent stains. Luckily, we can whip up our own etcha ...more

In my recent Darknet series, I attempted to connect the dots on the Deep Web. I covered the two largest anonymity networks on the Internet today, Tor and I2P. While my initial four articles were meant as an introduction, I ended up receiving a lot of interesting comments and m ...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

Apple's iPhone is considered one of the best smartphones in the world. Many cell phone makers have tried to take down the juggernaut, with some Android-based devices coming close, but in order to become an actual iPhone killer, something revolutionary needs to happen in the mo ...more

Wired posts a gallery of the original models of now iconic devices, with some fun tech-fetish facts. Did you know the first cell phone weighed a whopping 4.4 pounds? Or that the world's first super soaker was invented completely by accident? Examples below; click through for W ...more

From The Huffington Post: California Democrat Maxine Waters faces a House trial this fall on three charges of ethical wrongdoing. The charges focus on whether Waters broke the rules in requesting federal help for a bank where her husband owned stock and had served on the boar ...more