Session:Geiger Counter Workshop

Description Build a working Geiger Counter
Type Workshop
Kids session No
Keyword(s) hardware, software, embedded, hacking
Tags Village:HardwareHackingArea, soldering, solder, hacking, Geiger, radiation, radioactivity, sensors, kits, microcontrollers, HHA
Processing village Village:HardwareHackingArea
Person organizing User:Mightyohm
Language en - English
en - English
Other sessions... ... further results

Subtitle Geiger Counter Workshop 1
Starts at 2019/08/21 17:00
Ends at 2019/08/21 19:00
Duration 120 minutes
Location Village:HardwareHackingArea

Subtitle Geiger Counter Workshop 2
Starts at 2019/08/23 20:30
Ends at 2019/08/23 22:30
Duration 120 minutes
Location Village:HardwareHackingArea



3.6 Roentgens. Not great, not terrible.

Geiger counter kits are back! First released at Camp 2011, this Geiger counter kit is easy and fun to build.

Come to one of the workshops and learn about radioactivity, learn how Geiger counters work, and build your own sensitive Geiger counter from a kit. All parts are included!

You can also purchase a kit in the Village:HardwareHackingArea at any time and build it at your own pace.


  • Totally 100% Open Source hardware and software. All design files are available online.
  • Included SBM-20 Geiger tube. Sensitive to beta and gamma radiation.
  • On-board LED and speaker indicate detected radiation.
  • Push-button switch mutes the speaker, for silent operation.
  • Serial port for logging of CPS, CPM, and equivalent dose.
  • Pulse output to connect the kit to other stuff.
  • Comes with a stylish clear laser-cut acrylic case

Important Details

  • What: Geiger Counter Workshop. Build your own Geiger counter!
  • When:
    • 17:00 - 19:00, Day 1, Wednesday August 21st
    • 20:30 - 22:30, Day 3, Friday August 23rd
    • Both sessions are the same, you only need to come to one!
    • There is no signup sheet for the workshops. Come early to guarantee a spot.
    • Please purchase a kit prior to the workshop. Keep in mind that kits may sell out.
  • Where: Hardware Hacking Area (in the Belgian Embassy Village and Milliways Cluster)
  • Who: Anyone with an interest in building a Geiger counter. Some previous soldering experience is helpful but not necessary.
  • Max #: 50 participants -- This workshop will fill up, so please arrive early!
    • No need to register, just show up early and buy a kit to take to the workshop.
  • Cost: €100 for all materials needed to build your own Geiger counter (and take it home!)

Location of workshop (Hardware Hacking Area)

Location of Hardware Hacking Area in Belgian Embassy Village / Milliways Cluster

Here's a link to the CCCamp 2019 map:


Prior soldering experience is helpful, but not necessary. There will be folks around to teach you how.

If you have never soldered before, you might want to practice first. There will be lots of kits for sale in the Village:HardwareHackingArea. You can also read the comic book that Mitch, Andie, and I created called Soldering is Easy.

What to bring

Soldering irons, wire cutters, and other small tools will be provided. Just bring yourself!

If you want to connect your kit to a PC (for data logging etc.), bring a USB-serial converter that supports 3V logic levels. It will be easier if your USB-serial converter uses the most common FTDI pinout. The Adafruit FTDI Friend is compatible. For more technical information, see page 11 here: FTDI TTL-232R Cables

If you want to hack the firmware on the kit, bring an AVR programmer that supports the ATtiny2313 with a 2x3 pin connector. You'll also need a working avr-gcc toolchain.

If you want to connect the kit to other stuff (Raspberry Pi etc) you should bring some jumper wires to connect to the 0.1" headers on the kit.