The Internet 2.0

Have you ever wanted to build your own "The Internet" of "The IT Crowd fame? This video will run you through the simple steps to get your "Internet" up and running in no time.


2n3904 NPN Transistor1
LM324 Quad Op-Amp1
47 K Ω resitors4
100 K Ω resitor1
100 Ω resitor1
Red LED1
1n4148 Diode1
Black Plastic Project Box1


Read more:  The Internet 2.0


Bill Bowden's Original circuit called for a LM1458 dual Op-Amp, but I used a LM324 quad Op-Amp, since that's what I had on hand. The pinout numbers are almost identical - only the power and ground pins are different.

Did you like this video? Then check out my work on The IT Life

Original LED Circuit by Bill Bowden

Music - "Internet" by Kubi

Passive Agressive Game Of Life Display

Read more:  Passive Agressive Game Of Life Display

This display was designed and built as part of the "Passive Agressive" art show.

The display uses 100 blue LEDs to display various patterens. Many large scale LED displays are multiplexed, to save power and output pins. The drawbacks are reduced light output, and the need to rely on using Persistance of Vision to simulate a frame on the board. I ended up deciding to make each 'pixel' on my display individuallty adressable. I was able to do this because the number of outputs I needed (100) was reasonable to wire, and I didn't need to acheive a very high refresh rate.

Read more: Passive Agressive Game Of Life Display

Passive Agressive Direct Reader

Read more:   Passive Agressive Direct Reader

The P.A. Direct Reader simply reads all three tracks of data on a standard mag stripe card, and displays that data.

Originally, the setup was not going to use a computer, but run from an arduino. However some last minut problems with reading multiple tracks, and some hardware problems led to the use of a PC. Processing was used to both read the data from the card reader, as well as display/erase the data on screen.

Read more: Passive Agressive Direct Reader

Passive Agressive Audio Interpreter

The purpose of the Audio Interpreter is to read card data, and map the data from the card to different tones and hold times. When swiped, each card will play a different 'song'.

Read more:  Passive Agressive Audio Interpreter

LED Marquee Sign - Custom Control Board

Read more:  LED Marquee Sign - Custom Control Board

Every 2 years my local school system had an auction. This time, I picked up a large LED sign for $22.50.

The sign had a power cable, a couple of ports, and a label that read "Data Design Corp." I bought the unit assuming that I wouldn't be able to get any datasheets or manuals for it, but I did some searchign anyway. I ended up talking to a former VP of the company, who told me the company had been sold and dismanteld years ago.

At this point I had 2 options. The first was to try to figure out the connections on the controller board, and reverse engineer some kind of interface.The second option was to ditch the controller board all together and build one from scratch.

Read more: LED Marquee Sign - Custom Control Board