emonCMS Feeds, MQTT & Home Assistant

[haffle (Julian Berry)]

I’m having a senior moment and would appreciate some help!

1. I have a temperature sensor attached to an emonTX which creates & updates 3 feeds (current / max / min).
2. They appear in MQTT Explorer (along with a variety of other related feed values).
3. They “arrive” in Home Assistant - but for the life of me I can’t remember how or why. I don’t think NodeRED is involved, but it might be.
4. My MQTT “broker” is my EmonPi.

What I want to be able to do is remove the (up to 2) decimal places from these temperature values within HA. I suspect this will be easier to do closer to the source than within HA itself.

Any tips & pointers where I should be looking?

TIA

[borpin (Brian Orpin)]

@haffle

I have a temperature sensor attached to an emonTX

In that screen shot, you have 2 temperature values

1. emonpi - t1 = 7.4
2. SerialPiZero_garage T1 = 18.37

I expect both are being sent by emonhub on the respective devices (even on an EmonPi, the internal values are sent via emonhub/MQTT).

@haffle

What I want to be able to do is remove the (up to 2) decimal places from these temperature values within HA.

Use a template and convert to an Integer inside HA - (ask how on the HA forum).

@haffle

I have a temperature sensor attached to an emonTX which creates & updates 3 feeds (current / max / min).

If these are being passed to HA, then that is being done on the EmonCMS Input Process for that Temp Input.

Yes, I try and document what I have done. Had to back and remember how I generated the SSL cert for my Unifi controller today.