Hi,
the other day I wrote a blog about adding the external sensor of some cheap weatherstation from Aldi to Home-Assistant. Honestly, there are better sensors available, but playing with an RTL-SDR stick, the rtl_433 addon was still nice.
The only drawback for most of you is that I wrote this blog in german — but there are browser plugins (I suggest the one from DeepL, they translate much better than Google Translate) to have things accessible for you.
- Home-Assistant: Aldi Wetterstation WS0306W · Holger Schurig's Computer Calisthenics & Orthodontia
- Home-Assistant: Bresser Außensensor · Holger Schurig's Computer Calisthenics & Orthodontia
So, we have these topics covered in the two blog posts:
- the two devices, batteries needed, rought prices
- routing a USB device via Proxmoxx into the Home-Assistant VM
- using rtl_433 addon
- short intro to MQTT Explorer so that you can see what 433 MHz devices you received
- documentation about how to (intentionally!) manually import some of the found devices as entities into Home-Assistant (there is some auto-import available, but that installs way too many device into HA. Like the tire-pressure sensor of a random car passing your house …)
And since a humidity sensor broke, there is one addon:
- how to replace a hardware outdoor sensor with a template helper that gets the humidity
from your weather integration