Thank you guys. Ok, so getting an FrSky temp sensor and connect it via Y cable would be easy... but will the Spirit integration still work? I do occasionaly use the integration to check or adjust unit parameters at the field. The receiver has f.port firmware flashed on it and it is connected to the spirit through the default connector using the pins in the image:

Hello !
The fact is that the FPort protocol is bidirectional, otherwise the integration would not work because sending and receiving data is necessary -
The integration works via the antenna of the transmitter and receiver and via the bidirectional protocol - That's why it should be done adding the temperature sensor everything works as usual - you would have to re-explore the temperature sensor by re-reading the telemetry in the remote control, then you also know what it is called and program the corresponding warnings in the control, but I think you know that -
Maybe Tomas has an additional idea what should be observed too -

Regards

Hello,

as I said previously any telemetry sensor will not work with F.Port.
This receiver has support only for F.Port 1 where telemetry sensors are not supported.

You have to use older S.Port or F.BUS. But F.BUS is not supported by this receiver.

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Spirit System developer

Ok, I think I finally got it right. I skipped the f.port 1 and f.port 2 part. One final suggestion if I may ask... what would be my best next option to get the engine temp reading on my TX16s, well except buying a Spirit GTR . Ditch the r-xsr and get another receiver?