蓝牙模块，wi-fi，zigbee，sub-1 ghz，多协议，国产，lora
efr32bg24,ble 5.4,silicon labs
efr32mg24,ble 5.4,silicon labs
efr32bg22,ble 5.4,silicon labs
cc2650(fre014),蓝牙5.0
efr32,zigbee
换电,蓝牙,信驰达,低功耗,快递柜
