pymodbus VS genmon

This could work too. This one seems like it's actively maintained: pymodbus

you could get a couple Arduinos with Ethernet or Serial shields and play around with modbus, and there are python or C# libraries for modbus you can use for your PC.

To rewrite the values periodically, modify the program updating_server.py (You can access the license here).

The sample server program is available here. This article uses the version v2.5.2 of the code.

Maybe try this library instead?

Here's the GitHub page: https://github.com/riptideio/pymodbus

Hey all, I just installed three Unifi cameras around our property. I'd like to set up a few monitors around the home that show the RTSP streams in addition to my generator monitor dashboard (https://github.com/jgyates/genmon) as well as a little webpage that shows the state of our garage doors and driveway gate that I created with a couple Pico Ws (it's a _super basic_ HTML page that just refreshes every thirty seconds). I think I have the general structure pretty well mapped out in my head: three quadrants running VLC instances, plus one quadrant with two Chrome windows showing my simple status page and genmon. Planning to use a simple Python script to set up the windows on boot via xdotool, which then turns the streams and monitor on/off based on inputs from a PIO motion sensor. Might add a button to toggle through fullscreening the videos. Anyway, my question: can a Zero 2 W handle playing back three RTSP streams plus Chrome rendering two very simple sites? Given my experience with the Zero W, I think it wouldn't work. The 2 is pretty beefy, though, except for the limited RAM. I don't care too much; I'll find a use for them eventually anyway, and I can't find them in stock regardless (although they seem to be coming gradually back). What do you all think?

I run GenMon on a raspi out near my generator and my tank has a remote ready gauge. I'm working on having GenMon read the gauge directly via a hall effect sensor. GenMon publishes to MQTT and I integrate with Home Assistant that way. I'm not sure of your propane use case, but if it's for a generator, then this might be useful.

if you good with tinkering with stuff you might use this to do a test idle runs: https://github.com/jgyates/genmon