Hot Electronics Posts

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: Connect a laptop to a TV using an S-video cable

Have a laptop and a TV? Want to use your laptop on the bigger screen? Well, here's how. This video offers the viewers a detailed step by step explanation on how to connect their laptop to their TV and to use their TV as their new laptop screen. More specifically, this video offers the method for anyone with an S video cable and HDMI connection. The instructions are clear and precise, and viewers should have no problem connecting their devices after this.

How To: Transmit files wirelessly on the Canon EOS 7D

You can easily share and transport your photo and videos on the Canon EOS 7D by using the wireless file transmission option. See exactly how sharing and downloading your files to computers and other devices works in this video. When the digital SLR camera is combined with the WFT-E5A Wireless File Transmitter, transmitting is easy.

How To: Clean the camera contacts on a DSLR

When the camera has trouble auto focusing the first step to take is to clean the contacts on the lens. If it continues then the contacts on the camera may need cleaning. When you clean the contacts in the camera you have to be extremely careful because they are inside the shutter chamber and there are a lot of small parts that can be easily broken in there. Face the camera down at all times during the cleaning procedure. Take the battery out of the camera and remove the lens. Put the rear cap...

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: Use zoom and telephoto lenses on a Canon DSLR camera

Need a primer on how to use zoom lenses with your Canon DSLR camera (a 7D, 5D, or Rebel T2i, for example)? This brief video tutorial from the folks at Butterscotch will teach you everything you need to know. For more information, including detailed, step-by-step instructions, and to get started using zoom and telephoto lenses on your own Canon digital camera, take a look.

How To: Use a Canon EOS 40D camera

This online manual shows you all of the ins and outs of the Canon EOS 40D digital SLR camera. The guide covers: handling the camera, shooting modes, ISO speed, AF modes, Drive modes, image quality, highlight tone priority, picture styles, white balance, and live view mode

How To: Build a DIY 1080p HD projector

Projectors can be pretty pricey. 1080p projectors even worse. If that isn't reason enough for you to build your own, then what is? Systm shows you the complete, detailed process of building your own 1080p HD projector, so pay attention and take some notes!

How To: Use a digital camera as a webcam for Skype

In this video tutorial, viewers learn how to use a digital camera as a webcam on Skype. Users will need the AV cable and a USB capture device. Begin by connecting the AV cable to the USB capture device. Plug the cable to your computer and your digital camera. Users will need to download and install the Debut Video Recording software. Open the program and click on Device. Users may have to go to Options and configure the settings. On Skype, right-click the person you want to call and select Sh...

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: Restore your iPhone or iPod to factory settings

If something happens to your iPod or iPhone and you can't remedy it with a reboot, you will need to restore your device to factory settings. This is not difficult to do and requires only your computer and your device. You should only restore your iPod to default if absolutely necessary, because you will lose all of your files and folders. Make sure you backup your music and photos before you do it! Good luck!

How To: Safely remove scratches from an Apple iPod

This video shows the process of removing scratches from an iPod. The video demonstrates the best way to remove scratches not only from the metal but from the front viewing screen also. One starts with the recommended Weiman Metal Polish and 100% cotton cloth. To achieve best results and a scratch free finish, the video also gives tips like shaking the polish before use. Your iPod as well as any other similar piece of equipment will look scratch free and as good as new by following these simpl...

How To: Set up a hidden camera system

This video shows you how to set up a mini wireless spy cam. Where you put it is up to you. Who you spy on is up to you. If you're wanting to keep an extra set of eyes on someone, watch and learn. So whether you're looking to put a camera in your bathroom or garage, go for it.

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: Solder speaker lead wires

In this video tutorial, viewers learn how to solder speaker lead wires. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal into the joint. Viewers are shown how to solder speaker lead wires to the terminals. This video also shows how to solder two wires together and how to solder a wire to a slip on terminal. This video will benefit those viewers who want to learn how to solder and be able to repair other electronic devices.

How To: Set a custom white balance on the Canon 5D Mark II

Most DSLR's like the Canon 5D Mark II come with pre-programmed white balance settings: daylight, cloudy, tungsten, fluorescent. But what do you do when you're in a mixed lighting situation and you want to balance between exterior daylight and interior tungsten light? If you set it to daylight, your tungsten light will be too orange. If you set it to tungsten, your exterior light will be too blue. The solution: set a custom white balance to balance the disparate lighting situations.

How To: Fix a frozen iPod Classic or Nano

This video describes the procedure of how to unfreeze, or reboot, an iPod Nano or classic. When an iPod of the Nano or classic design is frozen (not in temperature), and has a stuck screen, the procedure of how to unfreeze the iPod Nano or classic requires the user to press down the middle button of the iPod interface, and the menu button of the iPod. Keep the buttons depressed for the duration of approximately eight seconds until the frozen screen goes away, and is replaced with the Apple lo...

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!