Tuesday, May 3, 2011

Arduino Geiger Counter

This project involves a Geiger counter that is connected to an Arduino with an ethernet shield. The Geiger counter is a working analog board that is available at


This is based on an idea by ibtek who has kindly provided me with answers to questions I had.


The way to get the signal into the Arduino is to replace the LED with and opto-isolator and then to trigger an interrupt on the Arduino when a count is detected.

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