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Control Geek blog posting Backstage at the Macy’s (Wanamaker’s) Light Show shows you what technology is used to run one large commercial light show. →

Computer keyboards are peripherals partially modeled after the typewriter and designed both for the input of text and characters and also to control the operation of a computer. Keyboards can arrive in many shapes or sizes. 14 Cool Computer Keyboards for Geeks shows you a set of extraordinary and interesting computer keyboard designs currently available →

Simple tester checks Christmas-tree lights article gives you ideas how to test mains powered Christmas lights. The article presents a simple test circuit. Some more testing ideas can be found at Christmas Lights and How to Fix Them web page. LED lights are becoming more and more popular for common in Christmas lights for many →

What do you get when you mix a Christmas Light show with Guitar Hero? Christmas Light Hero! A real game you play with a wii wireless guitar controller. Christmas Light Hero video shows an amazing Christmas Light show with Guitar Hero. →

Do It Yourself Computerizing web page gives idea how to control christmas lights using PC. This web page presents several different technologies to use computer to control lights. If you are interested in the topic after this, it is a good idea to go to ePanorama.net Home Automation forum and read the articles archive there. →

AV Science Forum has an interesting posting on Ayre DX-5 blueray player. The article claims that Ayre DX-5 bluray player is a modified Oppo BDP-83 blueray player and even describes the modifications made to the device. Interesting article indeed to read, although I am a pretty skeptic would those modifications be worth of all of →

Proper ground configuration is essential for a good data acquisition system. Most measurement systems such as data acquisition devices allow for many different types of ground configurations depending on the type of signal being acquired or measured. This flexibility is the source of confusion when deciding which configuration to use in each specific situation. National →

An instrumentation amplifier is a type of differential amplifier that has been outfitted with input buffers, which eliminate the need for input impedance matching and thus make the amplifier particularly suitable for use in measurement and test equipment. The ideal common-mode gain of an instrumentation amplifier is zero, which means that it is a very →

Take a look at my last year’s Christmas Lights display and controlling them posting to Home Automation discussion group. You can find many links to videos and information on computer controlled Christmas Lights displays. →

Ground loops affect video signals. Understand them, then deal with them. When designing or installing the cables for a video transmission system, one assumption that engineers commonly make is that the local earth grounds of both ends of the cable are the same. When circumstances don’t support this assumption, the video performance can exhibit gross →