There is now another way to save the data on your Raspberry Pi if you would like to have a .csv spreadsheet. There are two things you need to do.
Get your Muon Hunter hardware ready for datalogging by following the instructions here:
Using the link above you can test your configuration, too using a python interpreter on your Raspberry Pi as explained on the site above.
Download / clone this git repository and follow the instructions here:
This description is valid for rev3. However, the ST powering options are the same, so that information can be used with the previous versions, too. Always double check the schematic supplied with your kit before connecting the power.
You can power the kit using a variety of sources. The analogue circuit is powered from the 3.3V output of the voltage regulator on the ST Nucleo board, therefore the voltage on the GM tubes will not be affected by the input voltage level, provided you power the kit as described below.
The input voltage options for the ST Nucleo are described in the ST Nucleo datasheet page 17, section 6.4.2 for reference.
The power jumpers are JP1 and JP4 on the kit.
JP1 is located under the ST Nucleo board, so you will have to remove the micro controller to change the power options. This helps to maintain safe lab practices, too.
What happens if you drive through a tunnel with the Muon Hunter? Or put it under a large quantity of water? Check out Bremsstrahlung's latest action video to find out.
Check out Bremsstrahlung's latest video featuring the Muon Hunter and some clever mods, hacks experiments, monster GM tubes, great handicraft graphics and cosmic ray basics:
There are a couple of things that might prove useful bearing in mind when thinking about launching a high altitude balloon with the Muon Hunter.
In terms of ballooning, weight minimisation and power consumption minimisation is everything, therefore you can do a few optimisations. Attaching the kit to a Raspberry Pi in this case to save the data could be a sensible option, so this is the scenario imagined here. Check out how to prepare the Pi for muon logging here. However, there's much more you can do, check it out below.
If you fancy great graphics and interactive plots, try out logging muons with the MuonPlottr using your Rapsberry Pi and the Muon Hunter in a Jupyter notebook. The Jupyter setup was developed during a web fest at CERN and won the Best Technology project prize.
Check out the web site here: https://gitlab.cern.ch/MuonPlottr/MuonPlottr/wikis/home
The Muon Hunter makes datalogging very easy by design. The signals are like button presses, just much shorter and you don't have to worry about debouncing.
Getting the muon hunter ready
1. on the ST Micro connect Vin with the 5V input (JP1 on rev3) and
2. on the MH board connect the 5V power to the Raspberry Pi 5V output (JP4 on rev3). Or do the equivalent manipulations with jumper wires. Note: rev2 is connected to the Pi already except for step 1.
Getting the Raspberry Pi ready
Install the pigpio module on the Raspberry Pi as described here: https://www.raspberrypi.org/forums/viewtopic.php?t=66445
In short issue the following commands in shell:
wget abyz.co.uk/rpi/pigpio/pigpio.zip unzip pigpio.zip cd PIGPIO make sudo make install
Then start the daemon from shell:
After a few months of news silence, a new version of the boards are in the making with improved features. Check out the features.
The new rev2 boards have arrived. Nice job from the manufacturer. The order form will be available in a week or so.
CODE examples are on GitHub
About this blog
Welcome and thanks for visiting the Muon Hunter site. You've come to the right place, enjoy.