Shelly Plus H&T Wireless Temperature Sensor to Emoncms via MQTT

Integrations
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23

HA has vastly improved the BLE support in the last few releases. It has not adopted all of the ble_monitor stuff yet, so I’m still using that.

24

I’m still looking for a non Home Assistant room temp solution for a mate of mine that would hook best into emoncms.

He’s got a emonbase (emonTX and heatpump HAT). But no HA at the moment.

There’s no real way of running a DS18B20 into a room unfortunately.

Shelly Plus H&T still the best bet do you think?

25

Quite probably. Other way would be an ESP32 and ESPHome to read the BLE data…

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Depends on how much of a finished solution they want/need. A Raspberry pi zero W (or Pico W) plus a DS18B20 or a Si7021 would likely be cheaper.

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While that’s likely, Mick also said:

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Yes, I know, but that’s not what I’m proposing. No long wires required. I’m proposing putting the Pi and the sensor both in the room, much as you would with the Shelly device. The W on the end of the Pi’s name means it supports wi-fi, which is how it would communicate with the emonbase.

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If he’s got no wi-fi issues, that would definitely work.

30

Thanks guys.

I doubt my friend would be up for a Pi/pico/boards etc. Think he’d prefer a more ready made / aesthetically pleasing device on the counter side, ideally battery driven.

So in lieu of the emonTH being available, perhaps the Shelley is the way to go.

31

If anyone is considered using ESPHome, then this is a handy resources of devices that can be flashed https://www.esphome-devices.com

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HI I am a new user just getting set up and have a couple basic questions on this topic. Any guidance would be apricated, thanks!

NOTE: I am currently getting going on the hosted emaonscms.org vs a local rpi/base (but could add that if better)

  1. Is it still the case that the current Shelly H&Ts and their energy reporting smart plugs require a MQTT translation in order to send to emoncms?

  2. Assuming yes to #1, for a limited-skills rpi lunix guy, do you imaging going the nodeRed route or the HA route makes more sense? I have basic experience with both.
    – For nodeRed, since using hosted emoncms I assume I’d run nodeRed and if needed a mqtt receiver on an Ubuntu VM?
    – If HA route, is that easy and reliable?

Note: Its too bad emoncms doesnt have an option to receive variants of mqtt per source.

Thanks

33

Different, not better. You can access more data sources on a local setup via MQTT. the online version is limited to HTTP API.

To an extent, but that would be a lot of work considering the number of different data structures possible. Use a different tool to do the translations.

Use both! HA to receive the data and the Node-RED addon to poll the sensors and send the data to emoncms.

Steep learning curve, but pretty reliable IME and you can do other things with it.

[edit]
Of course HA can then communicate with the online emoncms easily via HTTP.