Gridfinity enclosure for Cajoe Geiger Counter
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A Gridfinity box to protect the Geiger tube and protect people from the high voltage.
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Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Public Domain
This is a case for the cheap Geiger Counter available from China. It is combined with a ESP32 to display the count and also upload it to thinkspeak for remote monitoring.
It features a hole for the ESP32 screen as well as another for a USB power cable. I added a lid and wired in a USB Mushroom cloud light that blinks on each detection.
Hardware
Cajoe Geiger counter ≈ 25 Euros
ESP32 OLED WiFi Modules+ Bluetooth ≈ 4 Euros
Mushroom Cloud USB light ≈ 15 Euros Thingspeak
Software
I followed this guide by SensorsIot and tweaked the code to add in the light. Here is a video from the original creator if you would like to see how the hardware works. The graph is currently displaying count per hour.