I need to write a Windows program that talks to the nRF52840 Dongle. Is there a .dll or .lib or source code for communicating with the Dongle? I have programmed the dongle with s140_nrf52_6.1.0_softdevice.hex. I can not find any documentation of the actual interface that is seen on the PC. Is it just operated via commands over the COM port? Are these commands documented? Where can I find this documentation?
I also need an application to use the nRF52840 Dongle in a pass-through UART mode. Do I need to load a different hex file into it for that? Where can I get that? Is there documentation of the GATT service and characteristic UUIDs for this code?
Thanks!