Bluetooth: Beacon
功能概述
本例演示了如何使能 BLE 广播功能， 广播内容为 Eddystone URL
环境要求
支持 BLE 功能的开发板
编译和烧录
示例位置：
examples/bluetooth/beacon
编译、烧录等操作，具体参考 快速入门 章节 。
运行结果
I/beacon [0.222] Starting Beacon Demo
I/bt_hci_core [0.246] Identity: 28:6D:CE:01:02:03 (public)
I/bt_hci_core [0.252] HCI: version 4.2 (0x08) revision 0x0709, manufacturer 0x070c
I/bt_hci_core [0.260] LMP: version 4.2 (0x08) subver 0x0709
I/beacon [0.266] Bluetooth initialized
I/beacon [0.272] Beacon started, advertising as 28:6D:CE:01:02:03 (public)