Geiger Counter
Project Description
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Project description
You talked, we listened, and we've revised our Geiger Counter board to address some of the most pressing concerns. This version features an improved voltage regulation circuit for the Geiger tube which has a much cleaner output. We've also modified the signal capture portion of the board so that it reads active high, allowing for more dependable counts that are less susceptible to fouling due to line capacitance. The new signal capture circuit also pushes the CPM limit to 100Hz!
Project description, more information and ordering can be found at https://www.sparkfun.com/products/11345
Firmware - unit ships with v12: https://github.com/a1ronzo/SparkFun-Geiger-Counter/commits/master
Product Video: http://youtu.be/zlcA6vjrxxI?t=1m52s
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Component (32)
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SparkFun:RESISTOR:AXIAL-0.3
R14, R9, R17, R16, R15, R6, R8
7
SparkFun:RESISTOR:AXIAL-0.3
SparkFun:5V:
U$23, U$21, U$18, U$16, U$22, U$19
6
SparkFun:5V:
SparkFun:M06:SIP
JP2
1
SparkFun:M06:SIP
SparkFun:RESISTOR:0402-RES
R4, R1, R13, R12, R11, R2, R5, R3
8
SparkFun:RESISTOR:0402-RES
