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64 lines
2.5 KiB
Markdown
64 lines
2.5 KiB
Markdown
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# flipperzero-geigercounter
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A geiger counter application for the Flipper Zero
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You need a **geiger counter** board to run this application. This board can be used : https://aliexpress.com/item/1005004074447209.html
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The geiger counter board can be powered with +5V power pin of the **Flipper Zero**
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Output pin for measure on arduino cannot be used on the **Flipper Zero** because output voltage is too low. You can use jack out port instead. This port must be connected on **A7** GPIO :
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<p align="center"><img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/schematic.jpg" width=75% height=75%></p>
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## Build the program
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Assuming the toolchain is already installed, copy **flipper_geiger** directory to **applications_user**
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Plug your **Flipper Zero** and build the geiger counter :
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```
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./fbt launch_app APPSRC=applications_user/flipper_geiger
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```
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The program will automatically be launched after compilation
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper1.png" width=25% height=25%>
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**A4** GPIO can be connected on **A7** GPIO to test this application without using a geiger tube. **A4** GPIO is generating a signal whose frequency changes every second.
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Press Ok button to clear the graph, press back button to quit
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If you don't want to build this application, just simply copy **flipper_geiger.fap** on your **Flipper Zero**
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## Use cases
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Ambient radioactivity :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper2.png" width=25% height=25%>
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Measure of uranium ore piece inside a lead container :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper3.png" width=25% height=25%>
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Measure of uranium ore piece in contact with the geiger tube :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper4.png" width=25% height=25%>
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All previous measures in a row (the scale of the graph is automatically adjusted) :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper5.png" width=25% height=25%>
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**A4** GPIO on **A7** GPIO :
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<img src="https://github.com/nmrr/flipperzero-geigercounter/blob/main/img/flipper6.png" width=25% height=25%>
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## Changelog
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* 2023-01-15
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* Code fix & a lot of optimizations. Now a lot of events can be handled without any issue
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* 2023-01-09
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* Schematic was added & code fix
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* 2023-01-08
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* Initial release
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