Live plotting of data from a USB-enabled HOPI HP-9800 power meter
Most lower-level work taken from other similar projects:
- https://github.com/lornix/hopi_hp-9800
- https://gist.github.com/raplin/76da6392f34934738ff865891a7b672f#file-hopi_hp-9800_python_simple-py
- python 3
pyserialmatplotlib(unless you're using this only for the readout code)
From scratch, download and install python 3 and run:
pip3 install pyserial matplotlib
hopy.py- helpers for the next two fileshopi_log.py- opens device, reads out, prints to stdouthopi_plot.py- opens device, reads out, plots in GUI
- wrap into executable, so we don't have to require you install python and some packges
- command line argument parsing
- figure out port naming and priorities on linux
- see if it makes sense to show both apparent and real power (divide by power factor)
CONSIDER
- make the interface connect to devices as you plug them in (also to be able to report, and not just fail silently), not just at startup
- reivew / fix the CRC code (right now the check on incoming data is disabled - I'm not sure whether it's just my HOPI or a general issue)
- rewrite it async style?
- web USB version?