Parts List

Kate Dougherty edited this page Apr 20, 2017 · 25 revisions

Table of Contents

  1. Parts List
    1. Large Parts
    2. Small Parts
      1. Resistors
      2. Small Parts on the Small Parts Placement Guide
      3. Additional Small Parts
      4. Headers
      5. Fasteners and Spacers
    3. Obtaining Parts
      1. Kit Order Fulfillment
      2. Distributor
  2. Accessories and Options
  3. Licenses

Parts List

See the Nano Assembly Manual for placement guides and photos.

Large Parts

  1. LND-7317 pancake Geiger
  2. Medcom IMI iRover HV board
  3. bGeigieNanoKit v.1.0.l PCB (printed circuit board). See the blog announcement of Nano's purple-color Community PCB available from OSH Park. (The color of the PCB that comes with the kit is blue.)
  4. Arduino Fio
  5. OpenLog
  6. Adafruit Ultimate GPS
  7. Monochrome 128x32 SPI OLED graphic display
  8. 2000mAh 3.7V 7.4Wh lithium polymer battery (Li-Po)
  9. Pelican 1010 micro-case

Small Parts


The kit contains a total of 11 resistors. The resistors come in six different types:

  1. 047 Ohm , x1 ; (R7)
  2. 001 k Ohm , x4 ; (R2; R4; R10; R12)
  3. 004.7 k Ohm , x2 ; (R5; R9)
  4. 009.1 k Ohm , x1 ; (R1)
  5. 047 k Ohm , x2 ; (R3; R8)
  6. 100 k Ohm , x1 ; (R6)

Small Parts on the Small Parts Placement Guide

The following parts are listed on the Small Parts Placement Guide.

  1. Capacitors, 100nF Ceramic x3 (C1, C2, C3)
  2. Diode 1N4148
  3. Dual-Dipswitch
  4. LED, blue (Count)
  5. LED, red (Log/alarm)
  6. Piezo buzzer (B1)
  7. Push button (S5)
  8. On/off switch (power)
  9. Toggle Switch (mode)
  10. Transistor 2sc1815 (T1)

Additional Small Parts

  1. Audio port connector 3.5 mm


  1. One 40-pin length male header
  2. One 19-pin length male header
  3. One 10-pin length angled male header
  4. One 6-pin length female header
  5. One 8-pin length female header

Fasteners and Spacers

  1. Black Plastic 10mm long, with hexagonal standoffs (x12)
  2. Clear plastic screws and nuts, to fasten black standoffs
  3. Various stainless steel standoffs, screws, and nuts (for connecting boards; e.g., the two nuts used to secure the LED display to the Nano are size M2)
  4. Double-sided foam tape
  5. Plastic square (insulation to protect battery)
  6. Strap(s) for mounting
  7. Clear neoprene feet (runners or pads) (x8)
  8. Laser-cut panels (3 cut plates: rear, middle, front)

For those sourcing their own parts:

  1. Open the GitHub repository containing the templates for laser cutting.
  2. Click on RAW to download the "" file from GitHub. (To view this Adobe Illustrator file, rename the extension from .ai to .pdf, and then open it with your PDF reader.)
  3. The average thickness of the three plates is 2.0mm.

Note that, according to Devices Group member Pieter, if all three plates have a thickness of 2.5mm, the Pelican case won't close. 1.5mm will work better. Another option is to cut one of the plates (preferably the middle one) from 2.5, and the other from 1.5mm to get a better "fit." If you need access to a laser-cutting machine or would like the address of a reasonable web order service, try searching the Internet, or asking around locally. You can also post to the Devices Group or email support at

Obtaining Parts

Kit Order Fulfillment

To request missing/replacement kit part(s) by air mail, contact You can also try searching the web for sources of DIY electronics.


As of April 1, 2017, the Nano Kit is available from Amazon through Geiger Counters.

Alternatively, you can acquire parts separately and source your own kit. All parts are available off the shelf. A purple version bGeigie Nano PCB is available at OSH PARK.

Keep in mind that buying all of the parts at retail would likely cost at least as much as the complete kit.

Accessories and Options

FTDI Breakout Board 3.3V

A small tool necessary for loading firmware upgrades and fixes. Here are a few options:

Pocket AVR Programmer

This is for technical users who would like to program the Nano firmware. To learn more, see “Set Up System on Mac OS X”, visit your local hackerspace, network with the Devices Group, or read the Arduino programming manuals on sites like Arduino and Adafruit. Low-Voltage Bluetooth Wireless Option

The BLEBee v1.0.1 board and iOS app BLExplr designed by Dr. Michael Kroll offer a low-voltage Bluetooth option.

For more on this option, see the product page, the BLEBee product forum, and the Safecast announcement.

BoPET (Mylar) film and/or Cut-Away Case for alpha-/beta Window or beta/gamma Window

According to user Joe Moross, "As the plastic case blocks alpha and beta particle radiation, a hole (40 to 45mm in diameter) for a custom alpha-/beta-window can be bored in the case over the sensor. Emergency 'space blankets' are a good source for thin aluminized Mylar...The thickness should be between 10 and 30 microns. Thinner than 10um and it's too fragile. Thicker than 30um and you'll block all the alpha particles and noticeably attenuate the betas as well. Optionally the Nano can be fitted with a beta/gamma-only window, which is less fragile...You can use duck tape to seal the film over the hole as we did on the earliest bGeigies. Or, if you want a neater appearance, try searching hobby stores for model airplane covering film. The "chrome" film is aluminized BoPET (expanded Mylar) usually 25um thick. It also has a thin layer (~5um) of thermoplastic adhesive...The mylar a/b window is only useful where there are sufficient airborne particles."

Extras for Charging the Nano's Battery

Hikers might be interested in using an nPower® PEG portable solar charger. Alternatively, you can use Lithium/Iron Disulfide AA batteries (Li/FeS2) and a 2xAA->USB charger, such as the Arisuti ALICITY AD28S.

Wireless chargers (5V 500mA) are also available. To learn more, consult the devices thread Wireless charger for bGeigieNanoKit.... Some of our community members prefer Qi. If you don't have a spare USB port on your computer, you can use a USB LiPoly Single Cell Battery Charger. If there's no possible recharge, you can always use a spare. Bring double-sided tape, solder, and tools to switch to your reserve battery.

You may also wish to add a GPS External Antenna.


The hardware developed by Safecast is open source. You are free to open, manipulate, hack, break, and/or improve anything.

All copyrightable, non-text works, hardware reference design, etc. are published under a Creative Commons Attribution Share Alike License.

You are free to copy, edit and republish these, but you must make it clear we are the original source and must publish under this same license. You can’t copyright anything you make based on our work.

All the copyrightable functional works of our hardware designs are published under BSD.

All the patentable functional works of our hardware designs are published under an XL1.0 Cross License.