Design of temperature detection and alarm system based on 51 single chip microcomputer

WeChat official account ： Chuangxiang diary
Keywords occur ： SCM temperature detection
Get schematic source file + Program source file + Simulation source file + The report + Related information

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be based on 51 Temperature monitoring and alarm system based on single chip microcomputer
from STC89C51 Single chip microcomputer + liquid crystal 1602 Show +DS18B20 Temperature sensor + Key module + The alarm module constitutes specific functions ：
① use DS18B20 Temperature sensor is used to measure temperature LCD1602 Show ;
② The key is the setting key , Including plus and minus keys , The upper and lower temperature alarm values can be set ;
③ When the set upper or lower temperature is exceeded , The corresponding indicator light is on , Buzzer alarm ;
④ Temperature measurement range 0 To 99.9 Centigrade , Accuracy of 0.1 Centigrade .

It can be used as a learning reference for course design , The information is detailed and complete .

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Hardware block diagram

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Program flow chart

① Main program flow chart

② Temperature measurement flow chart

③ Alarm threshold setting

④ Alarm module

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Schematic diagram

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simulation model

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For other details, please go to the official account to download .