Introduction - If you have any usage issues, please Google them yourself
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