This is a Python 2.7+ library for the Pico Scope. It uses the provided DLL for actual communications with the instrument. There have been a few examples around, but this one tries to improve on them via:
- Subclass instrument-specific stuff, so can support more families
- Use exceptions to raise errors, and gives you nice English error messages (copied from PS Manual)
- Provide higher-level functions (e.g. just setup timebase, function deals with instrument-specific limitations)
- Supports both Windows and Linux and Mac
System has support for:
- PS5000A Class (PicoScope 5242A/5243A/5244A/5442A/5443A/5444A/5242B/5244B/5442B/5443B/5444B)
- PS4000A Class (PicoScope 4444/4824)
- PS3000 Class (PicoScope 3204/3205/3206/3224/3424/3425)
- PS3000A Class (PicoScope 3204A/3204B/3205A/3205B/3206A/3206B/3207A/3207B/3204/3205/3206/3404A/3404B/3405A/3405A/3406A/3406B)
- PS2000 Class (PicoScope 2104/2105/2202/2203/2204/2205/2204A/2205A)
- PS2000A Class (PicoScope 2206/2206A/2206B/2207/2207A/2207B/2208/2208A/2208B/2205A MSO/2206B MSO/2207B MSO/2208B MSO/2405A/2406B/2407B/2408B)
Note the 'A' series covers a different ground than the non-A series! Check the programming manuals posted at http://www.picotech.com/document/ for details.
You need to install the Python module as well as the Picoscope libraries for your Operating system.
pip install picoscope
If you are developping the library, or need some feature that we haven't pushed to PyPi yet, use git clone to put the directory somewhere. Then use the setup.py script to install the library in development mode:
git clone firstname.lastname@example.org:colinoflynn/pico-python.git cd pico-python python setup.py develop
You will require the PicoScope DLLs for this package to work. The easiest method is to install the latest PicoScope software or SDK from https://www.picotech.com/downloads .
Install the PicoScope Beta for Linux version of PicoScope as describe under Getting DLL's (above). Currently this is the only way to install the shared libraries (SDK)
Once you have PicoScope running you need to add your login account to the pico group in order to access the USB. The examples will crash if you don't have permission to use the USB. This is true for use of the shared libraries in general, even if you're not using pico-python.
useradd -G pico $USER
You either want to add this every time before you start python or IPython, but I think it is best to add this line to
.bash_profile (or the Mac Equivalent ????).
Recently, this directory has moved to a new location See Issue #143
export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:/Applications/PicoScope 6.app/Contents/Resources/lib"
See Issue 80 for more information on how this was found.
You should also add yourself to the pico group so that your user has access to the picoscope as a USB device
# Create the new pico group : sudo dseditgroup -o create pico # Add the current user to the pico group : sudo dseditgroup -o edit -a $USER -t user pico
Seems like Anaconda has an issue with ctypes. See the comment here imdatacenters says to:
If you are using a special version of Python [like Anaconda] and you can't fix it. Navigate to line 362 of lib/ctypes/init.py and change it to:
self._handle = _dlopen(str(self._name), mode)
PicoPy uses Cython to interface with a PicoScope 3000A https://github.com/hgomersall/PicoPy
Picoscope offers their official wrappers, https://github.com/picotech/picosdk-python-wrappers
Authors, Copyright, and Thanks
pico-python is Copyright (C) 2013 By:
All rights reserved. See LICENSE.md for license terms.
- Make a new branch.
- Commit to your new branch.
- Add yourself to the authors/acknowledgments (whichever you find appropriate).
- Submit a pull request.
Alternatively, you can follow more thorough instructions here.
Commit and create a new tag with git
git commit git tag -a X.Y.Z -m "Short descriptive message"
Push the tags to the repo
git push origin X.Y.Z
or to push all tags
git push --tags
versioneer takes care of updating the version. New tags will be pushed to PyPi automatically by Travis.