首先，在设备之间建立连接。为此，请打开 LightBlue 应用，观察类似于以下内容的屏幕：

在 SPPLEDemo 终端中，将该应用作为服务器启动，注册 SPP LE 服务，然后使用 Server、RegisterSPPLE 和 AdvertiseLE 1 命令开始广播。在终端中观察到以下内容：

OpenStack().
Bluetooth Stack ID: 1.
Device Chipset: 4.1.
BD_ADDR: 0x0017e9d3581a

Command Options: Server, Client, Help 

SPP+LE>Server

 Command Options General: Help, GetLocalAddress, SetBaudRate 
 Quit, 
 Command Options BR/EDR: Inquiry, DisplayInquiryList, Pair, 
 EndPairing, PINCodeResponse, 
 PassKeyResponse, 
 UserConfirmationResponse, 
 SetDiscoverabilityMode, 
 SetConnectabilityMode, 
 SetPairabilityMode, 
 ChangeSimplePairingParameters, 
 GetLocalName, SetLocalName, 
 GetClassOfDevice, SetClassOfDevice, 
 GetRemoteName, SniffMode, 
 ExitSniffMode, Open, Close, Read, 
 Write, GetConfigParams, 
 SetConfigParams, GetQueueParams, 
 SetQueueParams, Loopback, 
 DisplayRawModeData, AutomaticReadMode,
 CBSend. 
 Command Options GAPLE: SetDiscoverabilityMode, 
 SetConnectabilityMode, 
 SetPairabilityMode, 
 ChangePairingParameters, 
 AdvertiseLE, StartScanning, 
 StopScanning, ConnectLE, 
 DisconnectLE, PairLE, 
 LEPasskeyResponse, 
 QueryEncryptionMode, SetPasskey, 
 DiscoverGAPS, GetLocalName, 
 SetLocalName, GetLERemoteName, 
 SetLocalAppearance, 
 GetLocalAppearance, 
 GetRemoteAppearance, 
 Command Options SPPLE: DiscoverSPPLE, RegisterSPPLE, LESend, 
 ConfigureSPPLE, LERead, Loopback, 
 DisplayRawModeData, AutomaticReadMode 

SPP+LE>RegisterSPPLE
Sucessfully registered SPPLE Service.
SPP+LE>AdvertiseLE 1
GAP_LE_Advertising_Enable success.

现在 SPPLEDemo 正在进行广播，请观察 LightBlue 中显示的设备：

接下来，在 LightBlue 中选择 SPPLEDemo 设备，然后观察以下屏幕：

在 SPPLEDemo 终端中，观察以下内容：

etLE_Connection_Complete with size 16.
Status: 0x00.
Role: Slave.
Address Type: Random.
BD_ADDR: 0x5cfc3252180b.
SPP+LE>
etGATT_Connection_Device_Connection with size 16:
Connection ID: 2.
Connection Type: LE.
Remote Device: 0x5cfc3252180b.
Connection MTU: 23.

设备现已连接。