基于arduino的空气检测器

使用空气净化器的空气质量检测 #生活技巧# #居家生活技巧# #电器使用技巧# #电动工具使用教学#

此空气检测器用了：OLED,ISD1820,DS18B20,MQ135模块，电扇

#include <OneWire.h> #include <DallasTemperature.h> #include "U8glib.h" // 定义DS18B20数据口连接arduino的2号IO上 #define ONE_WIRE_BUS 2 12345

/ 初始连接在单总线上的单总线设备 OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire); U8GLIB_SSD1306_128X64 u8g(13, 11, 10, 9); // SW SPI Com: SCK = 13, MOSI = 11, CS = 10, A0 = 9 const int gasSensor =0; int toneval; int IN3 = 4; // int IN4 = 5; int ENB = 3; int Play_pin = 7; static unsigned char word1[] U8G_PROGMEM = {0x00,0x00,0x00,0x00,0xBF,0x7F,0x08,0x08,0x08,0x08,0x08,0x04,0x08,0x04,0x3E,0x16, 0x08,0x25,0x88,0x44,0x48,0x44,0x08,0x04,0x38,0x04,0x07,0x04,0x02,0x04,0x00,0x04};//汉字编码 static unsigned char word2[] U8G_PROGMEM = {0x04,0x01,0x04,0x02,0xC4,0x1F,0x84,0x08,0x1F,0x05,0xE4,0x7F,0x04,0x00,0xC4,0x1F, 0x44,0x10,0xC4,0x1F,0x44,0x10,0xDC,0x1F,0x87,0x04,0x82,0x44,0x40,0x44,0x30,0x78};/*"气",1*/ static unsigned char word3[] U8G_PROGMEM = {0x08,0x02,0x08,0x02,0x08,0x05,0x08,0x05,0xBF,0x08,0x48,0x10,0xAC,0x6F,0x1C,0x00, 0x2A,0x11,0x0A,0x12,0x49,0x12,0x88,0x0A,0x88,0x08,0x08,0x04,0xE8,0x7F,0x08,0x00};/*"检",2*/ static unsigned char word4[] U8G_PROGMEM = {0x00,0x20,0xE4,0x23,0x28,0x22,0x28,0x2A,0xA1,0x2A,0xA2,0x2A,0xA2,0x2A,0xA8,0x2A, 0xA8,0x2A,0xA4,0x2A,0xA7,0x2A,0x84,0x20,0x44,0x21,0x44,0x22,0x24,0x28,0x10,0x10};/*"测",3*/ static unsigned char word5[] U8G_PROGMEM = {0x00,0x00,0x7C,0x3E,0x44,0x22,0x44,0x22,0x7C,0x3E,0x80,0x04,0x80,0x08,0xFF,0x7F, 0x40,0x01,0x30,0x06,0x0C,0x18,0x03,0x60,0x7C,0x3E,0x44,0x22,0x44,0x22,0x7C,0x3E};/*"器",4*/ void draw(void) { u8g.setPrintPos(0,35); u8g.print("Air :"); u8g.setPrintPos(0,55); u8g.print("Temp:"); } void setup(void) { Serial.begin(57600);//波特率 pinMode(IN3, OUTPUT); pinMode(Play_pin,OUTPUT); pinMode(IN4, OUTPUT); // 初始库 sensors.begin(); } void loop(void) { float temp; sensors.requestTemperatures(); // 发送命令获取温度 Serial.print("Temperature for the device 1 (index 0) is: "); temp=sensors.getTempCByIndex(0); Serial.println(temp); //通过索引值来获取摄氏温度，输入参数为器件索引值，返回参数为摄氏温度。 u8g.firstPage(); do { u8g.setFont(u8g_font_unifont);//设置字体 u8g.drawXBMP(0,0,16,16,word1); u8g.drawXBMP(22,0,16,16,word2); u8g.drawXBMP(44,0,16,16,word3); u8g.drawXBMP(66,0,16,16,word4); u8g.drawXBMP(88,0,16,16,word5); draw(); float voltage; voltage = getVoltage(0); Serial.println(voltage); u8g.setPrintPos(50,35); u8g.print(voltage); u8g.setPrintPos(50,55); u8g.print((float)sensors.getTempCByIndex(0)); if(temp>30||temp ==30) { digitalWrite(Play_pin,HIGH); delay(500); digitalWrite(Play_pin,HIGH); delay(500); digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); analogWrite(ENB, 128); delay(500); } else { digitalWrite(Play_pin,LOW); digitalWrite(IN3, LOW); digitalWrite(IN4, LOW); } } while( u8g.nextPage() ); delay(500); } float getVoltage(int pin) { return (analogRead(pin) * 0.004882814); }

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