I am desperate. I loved flying the qq190 and now I have a new receiver (FrSky ACCST R-XSR) binded successfully, but the flight controller does not recognize the SBUS signal anymore ?? I can not calibrate. It says, “Waiting for SBUS and center your sticks, but there’s nothing going on.” Please help me.
now and then, I should read the manual and interpret it correclty.
I plugged the signal cable into the sbus_in pin instead of sbus_out. 🙁
Hi, Sorry to hear you are having this issue. It might be because the R-XSR isn’t outputting SBus mode. In the manual, it states:
To paraphrase this into readable english:
How to change the Frsky R-XSR SBUS/CPPM output Mode:
Sbus mode is indicated on the Frsky R-XSR by the presence of a solid blue led indicator.
If the blue LED is not solid, then the unit is in CPPM mode.
To switch the mode from CPPM to SBUS and vise-versa, long press the Failsafe button on the receiver (marked F/S) for approximately 4 seconds. If the change was successful, the blue led will flash 3 times.
I hope that helps get your QQ190 back in the air!
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