Rtl_433 Configuration with MQTT

Hello - I have the rtl_433 v0.5.2 addon added to my HomeAssistant. I have configured the rtl_433.conf.template file per the instructions at rtl_433/README.md at 71bcb5b77eddf7a1003672a92df5e55399e1de34 · merbanan/rtl_433 · GitHub, and when I go to the log file for rtl_433, I can see my (single) 433mhz humidity sensor providing an update very ~1min; the values all seem to make sense.

However, when I go to MQTT explorer, I don’t see any updates to the rtl_433 topic. So if I understand correctly, rtl_433 is correctly picking up the wireless signal from the sensor and interpreting it, but it’s somehow not getting published to the MQTT broker (mosquitto MQTT addon).

MQTT messages from other sources (non-rtl433) are getting successfully published to the MQTT broker.

Any thoughts on what I can do to troubleshoot? Previously I was seeing MQTT topics being updated for rtl_433 in MQTT Explorer, but now it seems to be no longer updating.

did you use the rtl_433 HA addon or maybe just a plain rtl_433 install (as u linked to) ?
With the HA addon the mqtt server host should be easily configured and with the
RTL_433 mqtt addon the device automatically integrated in HA.

Otherwise you have to add the mqtt broker adress to your config manually.