question

gr1pen avatar image
gr1pen asked

Cerbo GX energy meter from mqtt?

Im trying to make Cerbo GX aware of my grid comsumption measured by a third party meter.

I amgetting the power consumtion into node red perfectly fine, but how can I map this so Cerbo GX use this as the power meter reading?

I was thinking of MQTT, but I would need a little help where to start.

cerbo gxEnergy MeterMQTT
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1 Answer
animus avatar image
animus answered ·

Hi gr1pen,

i have setup a Raspberry Pi with Venus Os ans use this script from Mr. Manuel

https://github.com/mr-manuel/venus-os_dbus-mqtt-grid

because i dont want to install a EM24.

I read the power consumtion out over IR Reader Head ( Volkszähler, Hichi ) to node red.

The Payload need the format:


msg.payload = {"grid": {"power": msg.payload }};

return msg;


then i subscribe the topic on Venus Os.

This works for me Perfect!


Now i have ordered a Cerbo, and trying this in few days. :-)

2 comments
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odaigle avatar image odaigle commented ·

Hi,

I am trying to do something similar, but I don't find the topic to which I should publish the message. Could you point me to it? Thanks.

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mr-manuel avatar image mr-manuel odaigle commented ·

You can specify the topic in the config file. https://github.com/mr-manuel/venus-os_dbus-mqtt-grid#config

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