That unit plugs into a USB port, so did you just plug it into your HA server?
How do you get the data from the SDR into MQTT?
No, I decided to put the SDR dongle on an old Raspberry Pi 3b and place it in another part of my house so it would get better coverage. It’s possible that you could run it on the HA server, especially if you have a more powerful PC, but for me, it’s separate.
In the setup (rtl_433.conf for me) you simply tell the program that you want the output to go to MQTT. The relevant line in my file is:
output mqtt://homeassistant:1883,user=mqttuser,pass=**PASSWORD**,events=rtl_433[/model][/id]
Other options are to send data to a file, or to a database. Again, just set that up via the config file or command-line options.
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Could that be used to transmit signal? So I can just send all is good and get rid of all the constant bullshit warnings?