程序描述：智能温度感测器，这个范例中使用到

（1）8051 的Port 1连接到LCD显示器，PORT 3的P3.3,P3.4和P3.5分别连接到LCD显示器的控制线，程序执行时可以让LCD显示器显示出时间和日期。

（2）温度感测组件AD590经由ADC0804将感测到的温度，转换成数字数据，然后经由PORT 0输入8051。

（3）8051的第10和第11只脚RXD和TXD分别连线到MAX232，然后连接到PC的COM埠。

（4）8051实验板每　小时就读入ADC0804转换的数字温度数据，然后记录在串行式EEPROM 93C66中。

（5）8051实验板可以经由RS232将记录在串行EEPROM 93C66中的数字温度数据传送PC端。-Descr iption: Smart Temperature Sensor, use this example to (1) 8051 Port 1 to connect to LCD displays, PORT 3 of P3.3, P3.4 and P3.5 were connected to the LCD displays the line of control, procedures implementation allows LCD display shows time and date. (2) temperature sensing components through AD590 will ADC0804 to the temperature sensor, converted into digital data, and then enter PORT 0 through 8051. (3) 8051 paragraphs 10 and 11 feet respectively RXD and TXD connected to the MAX232, and then connect to the PC s COM port. (4) 8051 per hour school board ADC0804 conversion into digital temperature data, and then recorded in the Serial EEPROM 93C66 in. (5) 8051 experimental board through RS232 will be recorded in the serial EEPROM 93C66 of digital temperature data transmission PC client.