Ultra-compact radiation detector add-on for your Flipper Zero. Monitor beta & gamma radiation levels. Gain environmental awareness instantly
Designed by Erwin Ried in Norway
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I love my Flipper Zero, I want to maximize its utility in every possible way. I use the great akopachov's Authenticator every day and Mayhem v2 adds everything else I need... however, living in Norw…
Read More…I love my Flipper Zero, I want to maximize its utility in every possible way. I use the great akopachov's Authenticator every day and Mayhem v2 adds everything else I need... however, living in Norway, in close proximity to Russia, there's one essential addition that I believe should be considered: a Geiger Counter.
I saw some great approaches to this, but I need something that just works, no fiddling around. The beauty of this Geiger Counter is that it seamlessly integrates with the Flipper, drawing power from it, uses its display, and stores the data to it. It's the perfect symbiosis, an essential addition to my toolkit.
The design is heavily based on schematics using a J305 Geiger–Müller tube for the flipper form factor.
Version | Release | Details |
---|---|---|
v1.0.3 | may 2024 | Improved ground around buzzer |
v1.0.2 | nov 2023 | Fixes on some pads and silkscreen graphics |
v1.0 | sept 2023 | First version |
This app gives you a graph view with counts per second (instantaneous measure of the radioactivity) as CPS and per minute as CPM.
There is extra functionality to record, zoom, change units, etc.
(credits to nmrr)
With this app you can get a really random dice based on the geiger counter. Make your decisions and board games extra exciting.
(credits to nmrr)
You can make your own or support the project buying a kit or assembled unit.
The kit might be a bit challenging, keep this in mind, you need to be handy and a good problem solver. The 3d printed parts aren't included except on the fully assembled (Ultimate) edition. Get the 3d models to print your own following the Source code link at the bottom or directly here.
This is assembled, calibrated, tested and ready to use. Includes the case and a protector for the pins while is not being used.
In the Poverty edition, you only get the PCB. The smallest components are included and they are already soldered, you need to buy and solder the rest following the table below this section.
With El Handy KIT you get everything you need (except the 3d printed parts), you need to solder and calibrate, following the information below:
These are the components locations:
Location (PCB) | Component | Remarks |
---|---|---|
(between F1 and F2/F3) | J305 G-M Geiger Tube | - |
F1, F2, F3 | Fuse holder 5x20mm | Check the length of your tube and solder only 2 holders |
LS1 | Buzzer | - |
IC1, IC2 | 555 DIP8 Timer | Make sure the pin 1 is in the correct orientation |
U80 | LM358 DIP8 | Make sure the pin 1 is in the correct orientation |
L1 | 100 uH Inductor | - |
L3 | 10 mH Inductor | - |
Q3, Q4, Q5 | 2N3904 Transistor | Make sure is in the correct orientation |
Q2 | MPSA42 Transistor | Make sure is in the correct orientation |
R100 | 100 Ohm Potentiometer | Orientation does not matter |
C6, C7, C20 | 10nF 1kV Capacitor | - |
C1, C2 | 100uF 25V Capacitor | Make sure the positive leg (longer) is in the correct orientation |
C21 | 270pF 50V Capacitor | - |
D1, D2, D3 | 1N4937 Diode | Make sure is in the correct orientation based on the band |
(for calibration) | 50M ohm resistor |
Only calibrate if you assembled the PCB. If it was pre-assembled, it is already calibrated. You need 50M ohm resistors and a multimeter. Check more details about the process here.
1) Keep the device disconnected from power. Remove the geiger tube if is installed
2) Adjust R100 to 50 ohms
3) Set the multimeter to VDC, highest range (i.e. 400V).
4) Connect GND to the multimeter (i.e. the left tube clamp)
5) Connect the positive tube clamp to the multimeter positive probe, using 50M ohm in resistors between them
6) Power the device and adjust R100 until your multimeter shows 57V (if is a 10M multimeter) or 6.5V (if is a 1M multimeter).
The device is now calibrated. Now you can place the geiger tube. You might add a dab of glue to hold the potentiomenter R100 in place.
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Shipping Rate | Tracked | Ships From | First Item | Additional Items |
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Your package will be dropped off at the post office on the next business day after it is marked as shipped. During weekends, packages may be held at the post office until Monday, even if they were initially dropped off on Saturday morning.
If your shipment doesn't have a tracking code, there might be an extra delay. Estimated delivery times for Europe range from 1 to 4 weeks, depending on your proximity to Norway. For Asia, it typically takes 3 to 6 weeks. If you're in the US or Canada, expect a delivery time of 2 to 5 weeks. For other regions, it can take between 2 to 6 weeks, according to the distance from Norway.
If you do not pick your package, or the provided address is wrong, on some scenarios it will return to me and I can ship it again for a new fee. However, the postal office charges around $35 USD if is a tracked package for concepts of "Return".
Given that each package is crafted by hand, I cannot accept returns. Most items have their parts documented and are open source, so this store is just to provide extra help for people who do not want to tinker themselves with the assembly. There is no warranty on components for self-assembled kits. For fully assembled units, thorough testing is conducted to ensure functionality before shipping. Regarding manufacturing defects, I provide a three-month (90 days) window from the date of package receipt for coverage.
If you need to cancel or modify an order, please reach out to me immediately. Orders typically require several days to assemble, as this is only a hobby of mine and occupies my afternoons, so even if it has not been shipped, part of the process could be already be in progress.
Product: (5.00)
Documentation: (4.67)
Shipping: (5.00)
Communication: (5.00)
Hyeonwoo | July 2, 2024
Maurizio | March 19, 2024
Nate | Feb. 23, 2024
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