Circuits Design Search Results

How To: Measure current, voltage, resistance, and continuity using a multimeter

If you own or have access to an auto-ranging or manual-ranging multimeter you can measure several different aspects of circuits, resistors, and the like. For example, you can determine the resistance, voltage, continuity, and current with the multimeter to help you determine the precision of a resistor. This guide will help you learn how to use a multimeter to perform these tasks.

How To: Use a soldering iron when circuit bending

In a time of ubiquitous electronics, soldering is an essential skill. Fortunately, if you don't already know how it's done, it's an easy skill to pick up and the tools and associated materials can be had for cheap. This video tutorial from MAKE will get you started. For more information, and to get started using a soldering iron yourself, take a look.

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: 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: Wire a light with a 3 way switch

In this video, Mark Donovan teaches us how to wire a light with a 3 way switch. Before starting, make sure the power is turned off from the main circuit panel first, and you test to make sure it's off. You will have two switches for the same light fixture. For a 15 amp circuit, you can use 14-2 and 14-3 wire. These wires will have a black, white, and red wire. The 14-2 wire just has a lack and white wire with a copper ground. The power coming into the base should have all the wires that conne...

How To: Do circuit Pilates exercises to improve your golf game

This clip demonstrates a useful circuit Pilates routine sure to take strokes off of your golf game. With Pilates, as with any physical fitness system, a basic mastery of proper technique is essential for both maximizing the effectiveness of your workouts and avoiding accidental injury. Whether you're looking to slim down or merely tighten up your core, you're sure to be well served by this home fitness how-to from the folks at Balanced Body Pilates. For complete instructions, give this free e...

How To: Build a spy clock

HouseholdHacker teaches you how to make a spy clock. You will need a cheap walkie talkie set and a battery powered clock. Fully disconnect the circuit board and cut the battery off from the walkie talkie. Also clip the microphone. You will want to glue the on/off button so it will always be on. Next, open up the clock and rewire the battery with the walkie talkie circuit board. Wire the walkie talkie into the speaker, inside the clock. The clock should look unopened. You're ready to go.

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: Design a safe kitchen

Home accidents. It's up to you to protect your family… your children… from accidents in the home. And there's one place that seems to get the most attention when dealing with safety concerns… The kitchen is one of the busiest, most accident-prone rooms in the house. Design a kitchen that will keep your family and guests safe.

How To: Turn a used TV into an oscilloscope

Leeann of Hierchiss explains how to turn a TV into an oscilloscope. Turn the TV on and make sure it works. First, unplug the power. Take the back off the television. Cut the four picture wires that attach to the circuit board. Strip the ends of the wires. Tape the remaining wires off to prevent short circuiting. Clamp the red and yellow wires and attach to a 1/4 inch jack which feeds into a tape player. Repeat the same process for the green and blue wires. Plug in the TV to make sure the conn...

How To: This DIY Baby Monitor Uses Lasers and a Wiimote to Detect Your Child's Breathing

Proud new papa Gjoci wanted to make sure he never had to worry about whether or not his baby girl was breathing, so he built this amazing breath-detecting baby monitor using a Wii remote, a printed circuit, and a laser. First, he opened up the Wiimote and took out the camera, then used an Atmel Atmega88 microcontroller to make a printed circuit. Low-power infrared lasers shine on the baby's clothing and the Wii camera detects the motion of the baby's breath, activating an alarm if the motion ...