美国DALAS公司的温度传感器ds1820芯片具有高灵敏度、易用性、编程布线简单等优点，被应用到工控行业的各种产品中。 本C51源码能够实现稳定的一线多点测温系统，液晶显示温度值。结合硬件的通信即可实现远程多点测温。本c51的ds1820的c语言驱动程序通过实践使用，程序效率高、稳定准确，可直接使用。 且本原码包括了FYD12864液晶显示源码，为FYD12864液晶初使用者提供了一个实例。--the United States DALAS ds1820 chip temperature sensor with high sensitivity, ease of use, Cabling simple programming advantages, such as being used in various industrial sectors products. The C51 source to achieve stability in the frontline of multi-point temperature measurement system, the LCD temperature. The combination of hardware communications can be realized more remote temperature measurement. The decoder of the c language ds1820 driver through practice use, the efficiency, stability accurate, can be used directly. Primitive code which includes FYD12864 LCD source, FYD12864 LCD early to provide users an example.