Victron BMV-70x battery monitor update

[ajay100]

Hi all,

I have updated my Python 3 code for the BMV battery monitor to add optional CSV logging and also to make it a bit more reliable. It uses a LUA parser to parse the required data to Domoticz (in my case Voltage, Current, Power, SOC, kWHr in, kWHr out and AHr).

It is all running on a Raspberry Pi 3. The BMV is plugged in to the RPi via a Victron serial to USB adapter.

The code is here: https://github.com/ajay10000/victron_bmv

I hope it may be useful for others with the BMV. Feel free to ask if you have any questions.

There are also many good references here: https://www.victronenergy.com/live/open_source:start

Cheers - Andrew

[jortg]

Hi Andrew,
Hope you can help me, i fail to get it working. Not strange as i am for sure not a specialist....
In the log of domoticz i get the following error:
CLuaHandler: udevices: ERROR:
2019-07-03 22:37:09.899 CLuaHandler: udevices: /home/pi/domoticz/scripts/lua_parsers/ap_bmv.lua:26: attempt to perform arithmetic on global 'val' (a nil value)
2019-07-03 22:37:09.898 Error: CLuaHandler (applyJsonPath from LUA) : Invalid Json data received

Log on the pi with the vedirect.py file reports no errors.

Thanks! JG

[ajay100]

Hi @jortg, sorry I missed your question as I was not subscribed to the topic. I hope you have resolved it by now. I've updated the README on GitHub to provide some more information.