I have a question regarding the UART hardware connection. From the last question/topic from Marcel
Tiny RTK GPS (NEO-M8P Rover): Use same UART for RTCM and NMEA?,
the TXD and RXD for both port A and B should be connected.
By referring to your wiring and schematic for the Tiny RTK GPS documentation, I tried to check the electrical connection test on both Tiny GPS RTK kit that I’ve. It seems that only the TXD (port A5 and B4) pins connected meanwhile the both RXD pins are not connected between each other. Is it actually a PCB mistake or is it on purpose?
Furthermore, from the documentation there is a switch on the side of Tiny RTK GPS board. What is the purpose of the switch? The Tiny RTK GPS that we recently got are however not featured with switch. (I assume the switch is maybe the updated version of the board).
Best regards, Z. Zulkifli