Friday, March 25, 2011

Zeus: trigger your camera with lightning

Introduction

I have always been fascinated by photographs about lightnings. While it is relatively easily to put a lightning strike in any photograph using image editing techniques :) I still prefer the real thing. Since photography is a hobby of mine, I wanted to be able to photograph lightnings. However, when I tried to do it without any specialized equipment, I didn't have much success.


The finished product.
I don't like the knob on the potentiometer, I just put it on for the sake of the photo - who knows when I will find a nicer one...

Thursday, March 10, 2011

Making of an Internet Radio Station

Introduction

A friend of mine who has been studying journalism asked me to create an internet radio station to complement his web site where he publishes his own and fellow students' articles. The radio station would be set up in his basement and would provide streaming radio 24/7. From time to time he would do live shows with interesting people invited to the studio and listeners calling the show for discussion.

My friend hosting a show

Tuesday, March 1, 2011

Programmable LED Lightshow from the 80s

Introduction

This is an old school circuit - I made it (with the help of a friend) in 1987, when I first started out in digital electronics. At the time there were no PCs - or at least not for the average person in Hungary. So all the planning was done in paper. The proof is the following photo :) :

No computers were harmed in creating this circuit :-)
This circuit is an LED lightshow, or LED chaser. There is no microcontroller or microprocessor used in this circuit making it an easy entry to the world of digital electronics.

A short video demonstrating the features of this circuit: