RC transmitter not detected by Navio2

I’m setting up a workbench to do hardware-in-the-loop (HIL) using the Navio2 and PX4 flight stack v1.7.3 release. However, I’m not able to to complete the radio calibrate in QGroundControl since it doesn’t detect the radio channel. I have bound the Taranis transmitter with the D4R-II (receiver led is green) as shown below, but both cat /sys/kernel/rcio/status/alive & cat /sys/kernel/rcio/rcin/ch2 return 0 when I move the throttle stick up and down.

Is the any additional parameter that I need to set in the px4_hil.config file so the px4 can see the rcio values from channel 2?

Hi!

If you have cat /sys/kernel/rcio/status/alive being 0, this means that your Navio2 is not properly connected.
When this is set to 1, and emlidtool recognizes your device, then you should be able to get your throttle via cat /sys/kernel/rcio/rcin/ch2.

@NikitaTomilov, cat /sys/kernel/rcio/status/alive returns 1

But QGC still cannot detect the throttle.

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