due to no answer regarding my question via mail I am posting here again.
We do use the RAK Connect with a PI, multiple MPCIE cards (Lora, LTE, GPS) and a PI Hat with UART connected to the standard PI GPIO.
The UART on the PI Hat on pins 8 and 10 should be (in my understanding) connected to the PI CM4 UART0 and when accessed via Minicom/Screen/Whatever i should get the data of the PI HAT connected to, right?
When I do connect to ttyS0 there are multiple GPS messages of the LORA connected to MPCIE1 and even of the connected LTE on MPCIE2.
How is this even possible ? Stating this image, the UART should only be routed to the GPIO. Is there any software relay in your software?
Please let me know what the actual routing of the ttyS0 is or how to access ther GPIO Uarts on Pins 8 and 10.