厦门科拓地磁配置工具，带有串口通信模块，串口接收优化，可快速接收显示串口信息-Xiamen Branch Extension the geomagnetic configuration tool, with a serial communication module, serial receiver optimization can quickly display serial information is received

易语言写的一个测试串口通讯控制5路继电器模块的源码(Use E language to write a test serial communication control, 5 relay module source code)