I want to use CP2104 with EFR32MG to build a zigbee gateway. I have few questions :-
1. Do I need a RS232 transceievr to connect CP2104 to EFR32MG over UART??
2. Can the entire system of CP2104 & EFR32MG be powered up from USB port of PC?
3. Does EFR32MG has on chip Anteena for BLE/Zigbee or do I need to use external one??