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 →
This is quite funny logo for an IC. This VIA GRA HT8501 is a real chip used on PC motherboards. The question is the naming of the chip intentional or just happened by accident? Original image source:http://leenks.com/gallery1046-58.htm →
Build Your Own Digicomp Mechanical Computer! tells about a plastic mechanical computer from the 1960s. It offered three bits of tabletop computing, back in an age where corded telephones were considered high-tech. According the article Digicomp started a bunch of kids on a career in computers. Now a member of “Friends of Digicomp” Yahoo Group →
Industrial Ethernet Technologies: Overview is a presentation intended to give an overview over the most important Industrial Ethernet technologies. It is good reading for anyone working with Ethernet and/or automation applications. →
Default Password List has saved the day several times when working with different network equipment. When the instructions are missing or the information on default passwords is very well hidden within the documentation, the Default Password List will give you the password information you quickly. →