QGroundControl - Radio Setup Issue - RadioMaster TX12 MarkII CC2500 - R81-V2 Receiver

QGroundControl
1

I’m having Issue with a radio setup in my drone. I have been able to bind R81 with RadioMaster TX12 but during setup QGroundControl status is “Radio Not Ready - Please turn on Transmitter.” I have connected R81 to Pixhawk 6x RC IN pin. I have attached screenshot of an Issue.

PX4 Pro Version 1.14.3

Screenshot 2024-07-01 131703
Screenshot 2024-07-01 1317031920×977 87.6 KB

2

I had this same issue using a slightly different setup:

  • FS-iA10B receiver
  • FlySky FS-i6X transmitter
  • PX4 Pro 1.14.3 firmware
  • Pixhawk 6C Mini

I was able to find the issue deep in my RC controller settings:

Menu > System setup > RX setup > Output mode > Serial > S.BUS

This was i-BUS but needed to be changed to S.BUS.

Hope this helps!