Electronics projects to make you sit up and take notice.

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During my daily morning mainline injection of news on the Net this week, a couple of electronics projects caught my eye that I hadn't seen before. The first is a project from SparkFun Electronics that uses higher voltage than I'm used to working with - a Geiger counter kit with a USB interface. The kit is constructed around the popular ATmega 168 microcontroller, which means that the basic Arduino development kit can be used to write code that pulls samples from the Geiger-Muller tube (powered by a tiny high voltage power supply) and outputs numerical values over USB, where the 'counter …

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