Cheap and low-effort solution to monitor temperature in 10+ rooms

Hardware
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42

Hi there,
in my exploration of sensors and possible integration with home assistant I made an addition to the shellies discovery gen2 script with the mantainer in order to make it discover also non shelly bthome thermometers like the xiaomi LYWSD03MMC with the ATC custom firmware.

Release Version 3.20.0 · bieniu/ha-shellies-discovery-gen2

so now the sensor is auto discovered and added to home assistant.

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43

With latest Firmware, Z2M can directly run on a SLZB-06 Coordinator.

44

haven’t found this update. Can you link me something to read about it?
The problem with this sml coordinator is that it is not easily purchasable at a cheap price for a company in italy.

46

Thanks! Really thanks!
I Just bought a sonoff dongle max for zigbee2mqtt and a couple of sonoff zigbee thermometers.
The main problem atm Is that on Amazon It there are not too much cheaper options.
I will take a look to your link ASAP!
Thanks again!

47

Ok i just received the sonoff dongle max adapter and i configured my first zigbee thermometer via zigbee2mqtt.
I will continue exploring it tomorrow.

EDIT: I also managed to connect a couple of tuya zigbee sensors that were not working with the official tuya hub i also have:

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48

You are possibly aware that the firmware for the LYWSD03MMC SOC chip can also be updated to make it talk ZigBee?

49

yup but i also saw that there are some issues with latest version and i think i can only get the most recent hw revision at the moment.

50

As an update to this thread, i'm mostly using sonoff zigbee thermometers.
I also have bought some TYZGTH1CH-D1RF to have some non-battery powered thermometers.
I'm also using some eletechsup modbus board in order to gather data from NTC or DS18B20 sensors via a modbus gateway.

51

I’ve been running a bunch of these tiny Bluetooth thermometers around the house and the signal pain stopped once I dropped in a cheap USB Bluetooth dongle on an extension cable to get it away from noisy stuff. Home Assistant picked everything up right away and I didn’t have to babysit batteries all the time. For multiroom setups, spreading a couple of dongles around can smooth things out a lot.

52

Yeah BT is amazing, and the electronic noise is a problem for sure.
But BT proxy is not a suitable option for my setup as i’m not running home assistant on a physical device and it is even not on the same network as my local LAN.
I’ve chosen for my setup zigbee2mqtt and i’m mainly using sonoff thermometers.

53

A BT proxy isn’t the same as a BT dongle directly connected to your server. The proxy relays between BT and WiFi. That’s what an ESPHome or Shelly BT proxy do.