Database read and write, serial send. Modify source code in the table structure can be realized ODBC database to read sent
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Serial Send Hydrological Data 串口发送水文数据
Out Serial Send Buffer 取出串口发送缓冲区
Implementation Serial Send 实现串口发送
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).
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。
However, RFCOMM is the better choice when you want to send and receive stream data, just like you would with a traditional serial port.
但是，如果想发送和接收流数据，则RFCOMM是更好的选择，就像使用传统的串口一样。
In this lab, you will design a program to send and receive serial data using interrupts.
在这个实验室，你会设计一个程序来发送和接收串行数据用中断。
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