I almost finished my M4-setup, but have trouble with the N4-expander. BT is paired with my smartphone, but when i want to connect to GCS-App, it disconects after 3 - 4 seconds. So guess there is a problem on the board, maybe solderwork.
Can i use the UART1-connector to check if i can connect to the module by serial monitor / PC ? Must i disconnect the N4 from the M4 FCU ? Or any other suggerstion how to check the problem ?