[graduation project 2] intelligent range hood system based on stm32

Tips ： Record 2022 year 4 Completed design by month 2

Preface

be based on STM32 Intelligent range hood system , The master controller uses STM32F103C8T6 Core board

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One 、 Functional requirements :

• Design of intelligent range hood based on single chip microcomputer system , Realize intelligent smoke extraction .
• The smoke sensor can detect the current oil smoke concentration .
• The fan speed can be adjusted according to the oil smoke concentration .
• Fire and carbon monoxide prevention alarm is realized through relevant sensors , If the temperature is too high or the concentration of carbon monoxide is too high, give an alarm in time , And on the LCD , Measurement error <=5%.
• It can be done by APP Control the fan speed , Set the temperature 、 Smoke and carbon monoxide concentration alarm threshold .APP Show the temperature 、 Gas concentration and other relevant information .

Two 、 Code thinking

Turn on timer 2, As the system running time ;
esp8266 Every time 2.5S Refresh once ;
dht11 Every time 1s Refresh once ;
OLED Every time 2s Refresh once ;

3、 ... and 、 Hardware description

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• After system startup , There will be “MyPro” This WiFi, Connect with the mobile network assistant ,

• ip Address ：192.168.1.1 , port 8080

• Pin connection ：

•         ESP8266:	EN		B0
    					RST		B1
    					RX		B10  
    					TX		B11		
    			
          OLED：      D0    PA5（SCL1）
            			D1    PA7（SDA1）
             			RES   PB7
            			DC    PA4
            			CS    PA6 
    										
    		 fire ：       Pick up  pcf8591
    					
    					
    		PCF8591：   SCL2   A0
    					SDA2   A1
    					
    	    smoke ：      Connect to PCF8591 On 
    					
    		CO：       Connect to PCF8591 On 
    					
    		DHT11：    from “S” From end to right PB9/3.3V/GND;
  

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  • @attention 1、 Provide to ESP8266 The voltage of （3-4v） Or when the current is not enough , Connect wifi Will fail
    2、 The motor must be powered separately
  • The experiment platform :STM32C8T6 Core board

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Four 、 Contact for consultation qq：2424644692

Undertaking stm32 Single chip microcomputer 、STC Series MCU design, etc

5、 ... and 、 Code, block diagram and other information

link : https://download.csdn.net/download/qq_43625266/85566512

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