18b20温度检测模块与1602液晶显示模块的通信的c语言程序，可以作为参考代码，已经在单片机实验板上通过测试方便使用开发芯片为89s52，可以更改端口后直接烧录-18b20 temperature detection module and the LCD module 1602 c-communication language program, can serve as a reference code, the board has been tested in the SCM test ch