Installing Daqhat Libraries without Python virtual environment

[floordoc]

We are trying to access the daqhats and pi through a connection with matlab it appears that the virtual environment is causing issues. We were not able to get the daqhat library to install outside of a virtual environment. We used the instructions at mccdaq.github.io/daqhats/install.html on a raspberry pi 3b with bullseye. We were able to install it in a virtual environment using the following code in the raspberry pi terminal:

"

python3 -m venv environments

source environments/bin/activate

pip install daqhats

"

 

The virtual environment is fine while running code in a python interpreter, or directly in the raspberry pi terminal, but we have not been able to make it work for running the code from matlab, so we would like to not need to use it.

python code:

is attached

terminal commands:

"

source environments/bin/activate

python3 /home/aset/daqhats/examples/python/mcc172/bert2.py

"

matlab code:

"

if exist('rpi',"var")

else

rpi = raspi("[ip address]","[username]","[password]");

end

system(rpi, 'source environments/bin/activate')

system(rpi, 'python3 /home/aset/daqhats/examples/python/mcc172/bert2.py')

getFile(rpi,'/home/aset/Documents/pythonTests/test.csv')

"

 

bert2.py

[DAQman]

There's plenty of info online regarding MatLab and Python, such as https://www.mathworks.com/help/matlab/matlab_external/install-supported-python-implementation.html and https://www.mathworks.com/help/matlab/ref/pyenv.html.

Setting the MatLab environment to OutOfProcess may be the trick. If you continue to need help, Mathworks tech support is the one to ask.

 

[floordoc]

We actually found a relatively simple work around. We did not find it on Digilent orMatlab's site though. When we call the programs using the entire virtual environment path they work.