Geiger Counter: Difference between revisions
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NickPGSmith (talk | contribs) (Created page with "== General == Based on [http://arduino-geiger-pcb.blogspot.co.uk this] DiY-GCC2.0 kit ([https://www.ebay.com/sch/impexeris/m.html?_nkw=&_armrs=1&_ipg=&_from= eBay Shop]): a s...") |
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Latest revision as of 04:53, 8 May 2024
General
Based on this DiY-GCC2.0 kit (eBay Shop): a small Mega 328P based microcontroller (Arduino compatible) which drives a 16x2 TC1602A-01T LCD display and an RS232 output. See also useful information here for alternative kit/resources.
Hardware
- Assembly Instructions
- Schematics
- Additional MAX232 serial interface
The board is similar to an Arduino Uno with a 10 MHz crystal. Optiboot bootloader for 10 MHz crystal with default serial parameters: 115200 8N1. Install new board definition from this.
GM Tube
Actual Tube used: CBT-11A
- Voltage of start of counting: 260 - 320 V
- Operating Current each section: 0.5 - 1.1 uA
- Recommended Operating Voltage: 400 V
- Own background: 0.6 c/s
- Plateau Length/Inclination - 80 V/0.5 %/V
Test Sources
- Am 241: 37 kBq mainly alpha source
Software (Stock)
Software (Custom)
Notes
Power On: Hold down MODE button to do reset Mode Press: CLear alarm Mode Double Press: Toggle Backlight Mode Long Press: N/A
Tone Zero Press: Reset base level for tone Tone Zero Double Press: Speaker mute Tone Zero Long Press: N/A