Decoded message not published via mqtt?

[hdtodd]

I've written and debugged a decoder and confirmed that it correctly decodes the message that was transmitted. But in my "production" environment, the messages from that device are not published via MQTT while messages from other devices ARE published.

For example, rtl_433 -F json -F mqtt://localhost:1883 shows all decoded messages on the console, but the messages from the new device (Protocol 275) are not published via MQTT (while all the others are):
{"time":"2025-02-04 11:28:26","protocol":40,"model":"Acurite-Tower","id":4652,"channel":"A","battery_ok":1,"temperature_C":6.4,"humidity":54,"mic":"CHECKSUM","mod":"ASK","freq":433.94736,"rssi":-0.308662,"snr":23.26314,"noise":-23.5718}
appears on the console AND the MQTT client (on another, network-connected computer), but
{"time" : "2025-02-04 11:28:26", "protocol" : 275, "type" : 1, "id" : 1, "temperature_C" : -95.900, "temperature_C" : -18.300, "humidity" : 35.000, "humidity" : 49.000, "pressure_hPa" : 999.300, "voltage_V" : 4.940, "mic" : "CRC8", "mod" : "ASK", "freq" : 433.947, "rssi" : -0.309, "snr" : 23.263, "noise" : -23.572}
does NOT appear on the MQTT client. [No, it's not -95.9°C here ... just test data to validate the decoder.]

Any suggestions where I might look to fix this? I have a feeling that it's something simple that I overlooked, perhaps not even related to the rtl_433 cmake build.

[zuckschwerdt]

Don't use type, don't duplicate keys, use temperature_1_C and humidity_1, mic should be "CRC".

[hdtodd]

Thanks. Fixed, but the no-MQTT issue continues. I get this on the console:
{"time" : "2025-02-04 12:25:11", "fmt" : 1, "id" : 1, "temperature_1_C" : 22.200, "temperature_2_C" : -18.300, "humidity_1" : 50.000, "humidity_2" : 49.000, "pressure_hPa" : 993.300, "voltage_V" : 4.940, "mic" : "CRC"}
but only the various Acurite sensors are published via MQTT.

[zuckschwerdt]

Minimum set of keys is "model" and "id".

[hdtodd]

THANKS! That did it. Now reported on MQTT feed:
{"time":"2025-02-04 13:51:06","model":"Omni","fmt":1,"id":1,"temperature_1_C":22.3,"temperature_2_C":21.1,"humidity_1":44.0,"humidity_2":49.0,"pressure_hPa":994.09998,"voltage_V":4.85,"mic":"CRC"}

I think I saw that minimum set of keys statement somewhere but failed to note it. My apologies ... and thanks.

[zuckschwerdt]

There is some info here but from the user not the developer viewpoint. https://triq.org/rtl_433/DATA_FORMAT.html