I have a r1f receiver

i have a iFlight SucceX-D F7 TwinG Flight Controller Unit for DJI Digital HD FPV

which pads do i solder my R1F Receiver Please
im abit stick all the vides i have see are all about the mamba board not the iflight-D F7 Boards

Big-D

Any uart you like. F7 boards don’t have a specific sbus pad

what pads on the board are Uart then please

Any tx and rx pad

Thank you