Write-up: Configuring EmonCMS to read MQTT messages

[Dash]

I’ve been a user of an EmonPi and separate local EmonCMS install for a long time but have now moved inline smart-capable meters to monitor my headline usage. Mostly for my own benefit for when I need to revisit in the future, I’ve documented what steps I took to get send data into EmonCMS via an existing MQTT broker, and thought I’d share here for posterity:

Configuring EmonCMS to consume MQTT streams 🌐aligrant.com

Personally, I’m currently using openHAB to receive data from my energy system (also over MQTT) and to re-post the value to the appropriate topic for EmonCMS.

I’ve also submitted a PR to support legacy settings files when working with MQTT service, but that hasn’t been approved yet, so you need to manually fix your install if you’re not using the current settings schema.

[Robert.Wall]

Would you consider publishing your experience and knowledge here, please? As we say on the FAQ page:

@Bill.Thomson

Please don’t link to files on external sites. Unlike others, we want you to attach your screenshots, log files, etc to your post. If the external site goes away, the material is likely to be lost forever. If that happens, when someone reads your post, your question and our answer will have little or no value.

[borpin (Brian Orpin)]

@Dash

I’ve also submitted a PR to support legacy settings files when working with MQTT

If an ‘ini’ emoncms settings file exists, the (very) old ‘php’ file should be ignored (it is deprecated).

I suggest you start by stating how you did the emoncms install initially and the hardware it is running on. 99% of installs are on RaspberryOS, so this process is not relevant to them and they could break a perfectly good system by following it.

emoncms consumes MQTT quite happily out of the box on a standard install.