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Hot Other Devices How-Tos

How To: Use a multimeter to test common household appliances

If you're doing any sort of electrical work at home, a multimeter is an invaluable tool to have. But as invaluable as it is to have a volt/ohm meter, it is obviously even more invaluable still to know how to use one. And, with this electrician's how-to, you'll learn how to do just that. For more information, and to get started using and reading multimeters yourself, watch this free video guide.

How To: Print 2-sided (duplex) w/ an Epson all-in-one printer

The Epson video describes how to print two-sided on one piece of paper. When document is ready, go to "File" and then "Print". Click the "Properties" button and select Page Layout tab and turn on the two-sided printing option. Click "OK" in print window. Wait for Epson printer to complete the first page. Take paper, flip over and put it back upside down in the paper feeder. There are instructions that will pop out on screen for this. Click resume and the second page will be printed on the bac...

How To: Calculate compound interest using a TI-84 and solver

This is a video tutorial in the Electronics category where you are going to learn how to calculate compound interest using a TI-84 and solver. Press the apps button on the calculator and press enter to load the TVM Solver which is the 1st choice. Here the meaning of various notations are N is time, I% is the percentage, PV is present value, PMT is payment, FV is future value and C/Y is compounding period. The problem is find the compound amount and the interest earned on $12,903.45 compounded...

How To: Make a burning laser pointer that produces heat

In this video tutorial, viewers learn how to make a burning laser pointer. Users will just need a regular 5Mw green laser pointer. Begin by unscrewing the top of the laser pointer and take out the batteries. Carefully with a pair of pliers, break the glue seal and remove the laser. Using a micro screwdriver, make sure that the screw on the laser is tight. Now using a soldering iron heat the 03 component shown in the video for a few seconds. Then assemble the laser back together. This video wi...

How To: Graph Mario on a TI-83 Calculator

When it comes to graphing and comparing functions, the TI-83 graphing calculator is the end-all device for math and science students. But one of the most entertaining aspects of Texas Instruments' powerful algebraic and trigonometric calculator is not the equations themselves, but rather the art that can be "equated" on them—just think of them as the mathematical equivalent of the Etch A Sketch.

How To: Hack someone's web cam or online security camera

This tutorial will let you hack into a wide selection of web cams and online security cameras. The hack is actually quite easy, and is best done with a browser like Mozilla Firefox. Navigate to Google in your browser, and then type in "inurl:viewerframe?mode+refresh". This piece of code will open up a list of active webcams. Then just surf through your choices and watch whatever you want. You can even change the camera angle and zoom in and out of the picture!

How To: Skip commercials with your Comcast DVR remote control

In this tutorial, we learn how to skip commercials with your Comcast DVR remote control. First, press the cable button, then press and hold the set up button until the cable button blinks twice. Now, enter in "994" on your remote. After this, the cable button will blink twice again. Now, press the setup button again and type in "00173", then press a button you don't use a lot. Now, the cable button will blink again. Now, turn on a show you have recorded and it will just through the commercial...

How To: Use Quick Connect Wireless with Epson projectors

In this tutorial, we learn how to use Quick Connect Wireless with Epson Projectors. First, make sure you have one cable connected to the projector and one cable connected to the computer with a USB streamline. This makes it much easier and more efficient to plug in your projector. As soon as you plug this in, you will see a message appear on your notebook, then the screen will star to appear on the projector as it does on the notebook. It will take a few seconds, depending on the monitor and ...

How To: Transform Multiple Screens into One Big Virtual Display

The Junkyard Jumbotron is an amazing project that allows a collection of random web browser enabled displays—laptops, smartphones or tablets—to share a single image split across the group, creating one large virtual display. Created by Rick Borovoy at MIT's Center for Future Civic Media, the app is completely free and open, meaning you can do it yourself in a matter of minutes. It works like this:

How To: Set up an X10 spy camera

The spy camera shown in this how-to video has a 60 foot cable, and is full color and has audio. This spy cam can be used as a security device, or to feed paranoid delusions or stalking urges. Watch this video tutorial and learn how to set up an X10 spy camera.

How To: Make your laser pointer run on AAA batteries

This video shows us the method to make your laser pointer work with AAA batteries. Take a metal casing made of metal. In the video, we take a Duracell mini flashlight and remove the front and back part. Unscrew the top and back of the laser pointer and remove the batteries. Roll some aluminium foil and put it in the metal casing. Put the AAA batteries in the casing with positive side inside. Put the casing and the laser pointer together and the laser works. Bind the two together by two rubber...

How To: Start using Sony's new Internet TV Blu-ray Disc player with Google TV

Google TV is a revolutionary new way to enjoy your two favorite things in life— Internet and TV. And Sony just happens to be the first company to design television products powered by Google, like their Internet TV Blu-ray Disc Player (Model NSZ-GT1). If you're thinking of getting one, this video provides a hands on, showing you how to use the new Sony Internet TV, paired with practically any television.

How To: Simply read a binary clock

Sydus 93 teaches You Tubers how to read a binary clock by demonstrating the following process: A binary clock is made up of four rows and six columns of colored or uncolored dots. The rows, from bottom to top, represent the numbers one, two, four and eight. From left to right, columns one and two represent hours, three and four minutes and five and six are seconds. In order to tell time using the binary clock, begin at the left of your chart and simply determine which dots are filled in and a...

How To: Replace ink cartridges in an Epson Artisan

We all know how frustrating it can be to replace ink cartridges in a printer. With the Epson Artisan printer, the task is simple and easy. The hardest part about replacing the cartridge is selecting the correct one. Even this job is made easy by the numbers on the cartridge casings. Simply pull off the tab before replacing, pop in the new one until it clicks, and you're ready to start printing whatever your heart desires. Exceed your vision!

How To: Make a night vision device

Ever wish you could see in the dark? Well, you can't but this how-to will show you a way to build a device to help you out. You will need light polarizors, a flashlight, and a digital camera. Make an infrared night vision device, just follow along with the steps in this video tutorial. Now you can see at night!

How To: Begin circuit bending

Looking to get into the weird world of circuit bending? In this four part video tutorial geared towards beginners, learn in thirty minutes how to circuit bend. Tools you will need include a soddering iron with innerchangeable tips (thin pencil preferred), thin sodder, hook-up wire, a wire cutter, a wire stripper, a drill with drill bits, plyers (needle nose included), and screw drivers of various small sizes. Other useful tools include cresent wrenches for toggle switches, jewelers files, & a...

How To: Build an electric motor

Want to make a simple electric motor at home? Andy and Mike show you how in just a few easy steps, using a block of wood, two paperclips, a AA battery, some insulated copper wire, and a magnet. This is a fun and simple science experiment that anyone can do at home. Wrap the wire seven times into a circular coil, with the enamel stripped off at both ends. Place the battery between the two paperclips, which serve as conductors and also hold the coil in place. Place the magnet below and between ...

How To: Build a computer numerical control or CNC machine

Take a look at this instructional video and learn how to build your own miniature computer numerical control (CNC) machine. A CNC machine acts as a controller that reads G Code instructions for machine tools such as drills and printers. To perform this task, you'll need some geared motors you can find in old analog camcorders with optical zoom.

How To: Repair headphones by soldering

Teaching the basics of soldering, you should be able to learn how to fix broken headphones. There should be two wires protected by a covering, one which is a silvery metal and an orange wire which is your copper wire. Taking the plate for your speakers, there should be two connections where the wires belong. Using your soldering material, melt some onto your soldering gun and apply it to the two sites of the connection on your speaker plate. Place your wires on the correct areas and carefully...

How To: Replace the battery in a Garmin ice 3600 GPS unit

Don't let an overpriced professional take over your Garmin battery replacement when you can do it yourself for a far less price and a higher feeling of satisfaction. Your GPS will thank you with years of use. This step-by-step video demonstration will show you the procedure for replacing the battery in your Garmin iQue 3600 GPS unit. You can use the replacement battery found in the video, or any other replacement battery, the results are the same.

How To: Check if a remote controller is working

When your remote isn't working, it's hard to tell what's broken. Is it the remote, the think the remote's supposed to be controlling, or maybe even just the batteries? This quick and easy how-to will help your troubleshoot your remote. Follow along and learn how to check if a remote controller is still working.

How To: Make a simple toy motor

It’s just a few steps to make a toy motor. Take a battery of any brand, then take two safety pins. Attach them to both the sides of battery as they act as positive and negative. Then take a magnet, keep it on the battery. Now take a strip, which is rolled into a circle, and take two leading wires from it. Then keep this strip in between the safety pins and just start it up by rotating to one side. Then leave it aside, it rotates continuously.

How To: Make your own radio station

This instructional video offers a description and overview of how to set up your own FM broadcast station. Operating from 88 MHz to 108 MHz. It describes how a FM transmitter works and how to make one. It presents a simple di-pole radio antenna for FM broadcasting and how to make one. And finally it explains how with theses two components one can set up their own station from anywhere. The video was made by Seth Gadsden in collaboration with Stephen Dunifer and Free Radio Berkeley.

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