DS18B20温度计C程序 使用AT89C2051单片机，12MHZ晶振，用共阳LED数码管 P1口输出段码，P3口扫描-DS18B20 thermometer C program uses AT89C2051 Singlechip, 12MHZ crystal, with a total of P1 Yang LED digital tube output above code, P3 port scanning

用AT89C2051控制DS18B20测量温度-A temperature meter used ds18b20　&　at89c2051

用AT89C2051、DS18B20制作的最小系统仿真程序，显示的数据能精确到0.1还能显示负的数值。-With AT89C2051, DS18B20 making the minimum system simulation program, data can be displayed accurately to 0.1 also shows a negative value.