如果想发送和接收流数据（而且想采用传统的串口应用程序，并给它加上蓝牙支持），那么 RFCOMM更好。
RFCOMM is better when you want to send and receive stream data (and when you'd like to take a traditional serial port application and Bluetooth-enable it).
单片机根据蓝牙HCI层协议对蓝牙接收和发送数据进行处理。
The MCU deals with data received from or to be sent by bluetooth module according HCI protocol, and builds a wireless communication connection.
以GC - 06蓝牙接收模块、SD储存卡和RS232串行通讯接口为数据传输接口的蓝牙接收装置设计。
Take GC-06 blue tooth receive module, SD storage card and RS232 serial communication connection as data transmission connection.
低功耗蓝牙技术使用很低的电量从接收端发送和接收少量信息数据。
Bluetooth Low Energy sends and receives small amounts of data to and from receivers, using a small amount of battery usage.
PC机通过蓝牙适配器接收到蓝牙发来的数据，通过上位机程序将图像显示出来。
PC through Bluetooth to a Bluetooth adapter receives the data sent by the host computer program of the image displayed.
PC机通过蓝牙适配器接收到蓝牙发来的数据，通过上位机程序将图像显示出来。
PC through Bluetooth to a Bluetooth adapter receives the data sent by the host computer program of the image displayed.
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