Circuit Search Results

How To: Identify the switched live wire in a lighting circuit

Before undertaking any electrical project, it is imperative that you know precisely what it is you're doing and to keep in mind that electricity can kill. With that said, this electrical tutorial presents a guide to identifying the switched live wire on a lighting circuit and also explains how to rewire a ceiling rose. For detailed, step-by-step instructions on completing this home project, take a look.

How To: Craft and use the Redstone Repeater in Minecraft

Minecraft Beta 1.3 has introduced some awesome elements to the game, foremost among them for all you Redstone heads out there is the Redstone Repeater. It's a new block you can craft that allows you to adjust the delay on the redstone circuit passing through it, allowing more finesse in timing your traps and other Redstone circuit contraptions and allowing you to save space by not making unnecessarily long circuits for the sake of timing.

How To: Breadboard a DIY USB power supply

While breadboarding may seem like some odd combination of snowboarding and consuming the fluffy pastry at the same time, it's actually just the technical term for using a construction base to build a prototype electric circuit. Breadboards are solderless so they're great for circuit design and are reusable.

How To: Make a CCTV monitor effect in After Effects

CCTV's (closed-circuit televisions) are more common than ever before, and have become more and more popular to depict in films and in video games like Manhunt. This video will teach you how to create a CCTV monitor effect akin to what a security guard would see on their camera monitor using After Effects. This will work great for any horror movie that you might be shooting, the effect is very creepy.

How To: Build a Laser Trip Wire Alarm System

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 triggers for this boundary could be as simple as a pressure sensor, or as complicated as a laser network. They all do the same thing, but some work better than others.

How To: Make an evasive beeping thing

This video shows you how to make a prank toy called "The Evasive Beeping Thing." You will need: a 555 timer, a couple of 3904 transistors, a couple of capacitors, some resistors, a 9-volt battery clip, a small speaker, and a small piece of circuit board to settle everything. Follow these simple steps:

How To: Embed lights into a colorful brooch with LilyPad

Get started with the LilyPad Arduino! It's a sewable microcontroller that lets you embed lights, sounds, sensors, and much more into your wearables, perfect for clothing and accessories. In this Make Magazine intermediate, soft circuit, video tutorial, you'll see how to sew up this little colorful brooch using a LilyPad tri-color LED and three small potentiometers for a customizable color wardrobe embellishment. Get the details.

How To: Build a universal motion alarm to protect your home

This video shows us the method to make a universal motion alarm to protect your home. You will need a reed switch with an alternating contact, a 9V battery with a battery clip, a switch, a buzzer, a small plastic box and a magnet. When a magnet is brought near the reed switch, it switches to the other contact and the switch is open. If the magnet is removed, the switch is closed and the buzzer starts ringing. Make the circuit with correct polarity for battery and the buzzer. Make a hole in th...

How To: Build Your Own Mini Altoids Guitar Amp for About $5

I love making beeps and bloops with the Arduino pitches library, but sometimes archaic 8-bit tunes just don't cut it. Whether you want your robot to terrify your enemies with a demonic synthetic voice, you just need a pocket boom box on the go, or you want to a miniature guitar amp, a simple LM386 amplifier can crank up those signals loud enough to play through any speaker.

How To: Wire a single pole light switch

Before working on any circuit in your house, make sure you turn the light off at the circuit breaker and then test it at the switch. Use 14-2 wire which has two insulated wires, a white and a black, and a bare copper wire which is used for grounding. First you run a 14-2 wire from the main circuit panel into the switch box. Then run a 14-2 wire from the switch to the light bulb. The black wire from the main circuit panel gets attached to one of the poles on the switch. The black from the 14-2...

How To: Make a "Shocking" Deck of Prank Playing Cards Packed with 330 Volts of Electricity

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 "Electric Shock Kissing Prank" to show the ladies how a man can really put the sparks in a kiss.

How To: Strengthen your lower body

In this video tutorial, viewers learn how to do a pedestal routine. This exercise circuit contains exercises. The exercises in this circuit are: 5 reps of prone leg lift, 5 reps of lateral leg lift, 5 reps of supine leg lift, 10 reps of donkey kicks, 20 reps of scorpions, 5 reps of Rockies, 5 reps of donkey whips, 10 reps of lower body crawl, 20 reps of iron cross, 20 reps of Australian crawl, 5 reps of pedestal lateral leg lift, 10 reps of groiners, 10 reps of hurdle seat exchange, 5 reps of...

How To: Make a rechargeable, solar-powered USB battery

An emergency battery charger for your mobile phone comes in handy, but it's not the ultimate solution; once it's dead it's useless (what a waste). If you want to really get off the metaphorical grid, you can follow the steps in this video to construct a more robust circuit that will not only bail you out of an inconvenient situation but also recharge in between uses. The simple addition of a low voltage solar panel and rechargeable batteries makes this possible. Enjoy!

How To: The Complete Guide on How to Build a Crystal Radio—Plus How They Work

There's a lot that goes into making a nice crystal radio set, so this is going to have to be broken down into two parts. The first part is the actual making of a functional radio, and the second part is making the whole arrangement look nice. In this part, I'm actually going to tell you more than just how to make a crystal radio, but I'm also going to explain how and why they work. Crystal radios are pretty Steampunk in and of themselves, since they were first developed in the late 19th centu...