I have bought RAK831+RPI3 board, and i have some issues:
- I think it can support 434MHz and 868MHz, because it has two transceivers, one is SX1255(400-510MHz), and the other is SX1257(860-1000MHz). is it right? if ok, i think RAK831 can support 434MHz or 868MHz at the same board.
- If i want to support 434MHz, how to config the gateway software? i did not find the global_conf.json for 434MHz;
- The thing network IoT platform does not support 434MHz, how to config the IoT platform when i try to use 434MHz frequency?
- I find the GPS chipset is not on the board, without GPS, could i send and receive data use it? what is effect?