UART/SBUS Jumper for RC on Navigator

Blue Robotics Products Flight Controllers
1

Greetings All,

We have a HCU/RC unit (Skydroid H16) that we want to use for RC control and to get telemetry information. I have the unit hooked up and we are getting telemetry info in QGC on the HCU, but I am not getting RC control. Turns out this unit uses normal, non-inverted, signal for SBUS. In the manual it says to cut the trace between the SBUS and center solder pad, and solder the UART side to the center pad. Before I proceed I took a picture of our navigator and it does not look like there is any trace soldered.

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Can I just solder the UART to the center pad to get the non-inverted RC signal to be read?

Best,

Ian

2

Hi @FairweatherIT

There is a trace between SBUS and the middle pad, it’s just hard to see because its covered up by the solder mask.

It’s also thick and a little hard to cut through, FYI, I found this out myself.

The newest revision of the Navigator fixes this and this trace should be much easier to see and cut.

3

Thanks Daniel…is the trace located here under the black coating on the Navigator? And we just solder the UART side to the middle pad?

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4

Hi @FairweatherIT -

That’s correct! You can check with a multimeter, you don’t want conductivity between the center and right pad once it is properly cut.