自己写的串口测试程序，能够采用同步方式给串口发数据，取数据-Cat program to write their own message, use mysql database, you can automatically reply to a message

一个java代码里面有模拟串口发送和接受，同时可以动态的把时间和接受的数据存入数据库（mysql）-Java code which has the analog serial port to send and accept dynamic time and accept the data stored in the database (mysql)

Windows service program, it start and poll serial COM-port with Modbus ASCI protocol and write data to MySQL data base.