利用STC89C52、DS18B20、LCD1602、AT24C02等芯片/元器件设计一个数据采集与显示系统。系统具有以下功能：

1、能实时采集温度，显示在1602上；

2、能实时显示时钟，在1602上；

3、按键1按下，将当前的温度值保存到AT24C02

4、按键2按下，可逐个显示之前采集到的温度值；

5、当温度超过设定值，则蜂鸣器报警。



扩展功能：

自行设定，如按键调整温度报警阈值等-Use STC89C52, DS18B20, LCD1602, AT24C02 other chip/component design a data acquisition and display system. System has the following features:

1, real-time acquisition temperature, displayed on 1602

2, real-time display clock, in 1602

3. Press the button 1 to save the current temperature value to AT24C02

4. Press the button 2 can be collected individually before displaying temperature values

5, when the temperature exceeds the set value, the buzzer alarm.



extensions:

Set their own, such as buttons to adjust the temperature alarm thresholds, etc