basically programs Will work out of the box.Only when you will start accessing the SPI or I2C, you need different library or Arduino core base code.
even though nrf52 and rak473 are essentially ARM processors, However their base SDK implementation of SPI and I2c drivers will be different bacuase of the different peripheral arrangement and different register configuration.
Hence even though the Arduino code will be mostly same...the internal implementation of SPI and I2C library will be different Hence you need to download the 'board variant' files in order for your code to work for a particular board….
HI! I am actually working with the library for arduino of RAK811 modem, for second band of us915 frecuency and ABP mode. The module works fine; but i have some doubs about "fCnt". The fCnt that i receive is always on "0". I think that maybe one of the next commands maybe restart the counter:
2- at+set_config=dev_addr:" + DevAddr + "&nwks_key:" + NwkSKey + "&apps_key:" + AppSKey?
can you tellme wich are?
We found the cause of the problem，Make WisNode-Lora Shield RST pin bending 90 degrees not plugged in Arduino UNO RES pin will solve this problem.Because WisNode-Lora Shield RST pin is 3.3V, and Arduino UNO RES pin is 5V,Put together will pull low Arduino UNO RES pin voltage，cause download error.