Geiger Counter
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Project description
We've revised the Geiger counter once again, this time replacing the switch with a more robust right angle switch. This version also includes the necessary capacitor to support Arduino's auto-reset feature. This USB powered Geiger Counter is equipped with an ATMega328 that can be programmed in circuit using one of the programmers below. Simply plug the unit into USB (make sure you have installed), open a terminal program to the correct COM port at 9600bps, and you will see random bits being generated from the random . Each bit generated (actually an ASCII byte, 0 or 1) represents an actual event in the tube in real-time, so the output can be used to deduce CPM or what ever units you need. Here at SparkFun, on average, we get about 25 counts a minute.
Check out the random number generating Geiger counter for more information.
Project description, more information and ordering can be found at https://www.sparkfun.com/products/10742
Firmware - unit ships with v12: https://github.com/a1ronzo/SparkFun-Geiger-Counter
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