I’m planning to connect a u-blox Here4 dual-band RTK module to my laptop using a USB-to-UART converter in order to stream both raw GNSS positioning data and onboard magnetometer (heading) readings. I want to confirm whether Here4’s UART port outputs all necessary NMEA or UBX packets for GPS fixes and magnetometer measurements, and if so, which specific messages I should expect to see. Additionally, I need to know whether I can feed RTK correction streams (e.g., RTCM) back into the Here4 over this same serial link. Any insights on configuring the port, supported packet types, and best practices for two-way UART communication with the Here4 would be greatly appreciated.
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