使用夏普GP2Y1010AU0F灰尘传感器检测空气质量

1、使用夏普GP2Y1010AU0F尘埃传感器检测空气质量.使用夏普GP2Y1010AU0F尘埃传感器检测空气质量.12/12使用夏普GP2Y1010AU0F尘埃传感器检测空气质量.使用夏普GP2Y1010AU0F尘埃传感器检测空气质量夏普尘埃传感器价钱较廉价，能检测出室内空气中的尘埃和烟尘含量.检测原理其原理以以下列图，传感器中心有个洞能够让空气自由流过，定向发射LED光，经过检测经过空气中尘埃折射事后的光芒来判断尘埃的含量。电路图由于数据是经过pin5的电压模拟信号输出的，而树莓派的引脚不支持模拟信号直接读取（需要增添数模转换芯片），因此先用Arduino来实验。Arduino代码依据电路图，

2、把Arduino和传感器连结起来：1.Sharppin1(V-LED)=5V串联1个150欧姆的电阻（最幸亏电阻一侧和220uf的电容）GND之间再串联一个Sharppin2(LED-GND)=GND3.Sharppin3(LED)=ArduinoPIN2（开关LED）Sharppin4(S-GND)=GND5.Sharppin5(Vo)=ArduinoA0pin（空气质量数据经过电压模拟信号输出）Sharppin6(Vcc)=5V/*InterfacetoSharpGP2Y1010AU0FParticleSensorProgrambyChristopherNafisWrittenApril2

3、0125.8.9.Sharppin1(V-LED)=5V(connectedto150ohmresister)Sharppin2(LED-GND)=ArduinoGNDpin11.Sharppin3(LED)=Arduinopin212.Sharppin4(S-GND)=ArduinoGNDpin13.Sharppin5(Vo)=ArduinoA0pin14.Sharppin6(Vcc)=5V*/#include#includeintdustPin=0;intledPower=2;intdelayTime=280;intdelayTime2=40;floatoffTime=9680;intdu

4、stVal=0;inti=0;floatppm=0;28.chars32;floatvoltage=0;floatdustdensity=0;floatppmpercf=0;voidsetup()Serial.begin(9600);pinMode(ledPower,OUTPUT);/givetheethernetmoduletimetobootup:delay(1000);39.i=0;ppm=0;43.voidloop()i=i+1;46.digitalWrite(ledPower,LOW);/powerontheLEDdelayMicroseconds(delayTime);dustVa

5、l=analogRead(dustPin);/readthedustvalueppm=ppm+dustVal;delayMicroseconds(delayTime2);51.digitalWrite(ledPower,HIGH);/turntheLEDoffdelayMicroseconds(offTime);54.voltage=ppm/i*0.0049;55.dustdensity=0.17*voltage-0.1;ppmpercf=(voltage-0.0256)*120000;if(ppmpercf0)58.ppmpercf=0;if(dustdensity0.5)62.dustdensity=0.5;StringdataString=;64.dataString+=dtostrf(voltage,9,4,s);dataString+=,;66.dataString+=dtostrf(dustdensity,5,2,s);dataString+=,;68.dataString+=dtostrf(ppmpercf,8,0,s);i=0;ppm=0;Serial.println(dataStr