iNav

Connect to a free UART
In Ports tab:
Enable Serial RX on the UART
In Configuration tab:
Set Receiver Mode to Serial-based Receiver
Set Serial Receiver Provider to CRSF
Save and reboot
Go to Receiver tab to test channel mapping and failsafe
Connect to a free UART
In Ports tab:
Enable Serial RX on the UART
In Configuration tab:
Set Receiver Mode to Serial-based Receiver
Set Serial Receiver Provider to CRSF
Save and reboot
Go to Receiver tab to test channel mapping and failsafe