I have a BG77 (on a Wisblock RAK5860 module) which I am able to communicate with and configure using Qnavigator by connecting my PC directly to it via USB.
However my microcontroller can’t seem to communicate with the BG77 via UART/serial. I uploaded the arduino sketch to the microcontroller which sends the BG77 AT commands, but it never receives any responses. Even when I send an ATI command via the arduino serial monitor I get no response. The sketch on the microcontroller is running fine.
Any idea what the problem could be?
I tried changing the URC_port setting to uart1 but did not fix the problem. The firmware on the BG77 is BG77LAR02A04.