I am working on a device prototype which reads load cell data to an Arduino which sends the load cell data via (hardware, not USB) Serial to the Rpi3 running Win10 IoT.
The communication link between the devices works using the Serial test app by Microsoft found at: https://github.com/ms-iot/samples/tree/develop/SerialUART/CS
What I am trying to figure out is: in the device list of the Serial app, a device is always listed as BCM2836#0 followed by what looks like a vendor/hardware ID string. I realize this is the name of the onboard UART controller by which I access the data at the serial port.
However, for the app I am developing I need to automatically connect to the serial port on pins #8 and #10 without having the user select the device. There will only be one serial device in the entire system. Can I then simply open the com port at this address--(in other words, assume the Arduino inherits the identifier from the Pi's UART controller?)