Marcus Vohburger created this very interesting device: a geiger counter powered by Flyport.
Let’s discover the project with Marcus
The nuclear catastrope in Fukushima (and of course Chernobyl, Harrisburgh and so on) made it clear that using radioactive materials for generating energy can and probably will end in a horrible disaster.
Very soon after the first reactor in Fukushima exploded, geiger counters were sold out eveywhere and prices soared to almost ridiculous levels. Although I do not live in or near Japan, I too wanted to have a geiger counter to monitor radioactivity myself, being prepared in the case some nuclear accident should happen in my part of the world (central Europe).
So I started researching for suitable DIY circuits on the net, testing a few of them and as none of them would fit my requirements, I designed my own circuits. Building a basic counter that clicks is pretty easy, but such circuits will never give you detailed and reliable information on whats really going on.
So the next step is to add a microcontroller and a display that would allow to calculate numerical values, but this would require you to record the measurements by yourself to have an overview of the long-term development of radiation. So the next logical step was to build a radiation logger device, that would record many thousands of measurements and display them on a computer screen.
A few months ago I created a very basic geiger counter application for the Flyport, it just displayed the Counts per Minute in simple text format. This worked nicely, but with a microcontroller and a wireless Lan you can of course do much more interesting things. The next step was a version of the program that would display one day of logged data with a simple HTML Bar graphic. This was a great improvement, since you could see very well the changes from minute to minute, especially when examining various materials for natural radiation.