Arduino气体传感器-Sharp GP2Y10 空气质量传感器

Sharp GP2Y10传感器图片

Sharp GP2Y10传感器介绍

• 夏普光学粉尘传感器（gp2y1010au0f）是检测非常细小的颗粒，像香烟的烟雾效果，是常用的空气净化系统。
• 红外发光二极管和光敏三极管是对角布置的这个装置，让它来检测空气中的尘埃反射光。
• 该传感器具有非常低的电流消耗（20mA最大，典型，可11Ma）采用了7vdc。
• 该传感器的输出是模拟电压正比于测量粉尘浓度，具有灵敏度0.5v/0.1mg/m3。

Sharp GP2Y10传感器参数

• 工作电压: 5 ~ 7V
• 工作温度: -10 ~ 65摄氏度
• 最大电流: 20mA

Sharp GP2Y10传感器连接方式

“Aruduino Pin Map”

Sensor Pin	Arduino Pin
Vled	5V (150ohm resistor & 220uF capacitor)
LED-GND	GND
LED	Digital pin 2
S-GND	GND
Vo	Analog pin 0
Vcc	5V

示例代码

/*
Standalone Sketch to use with a Arduino UNO and a
Sharp Optical Dust Sensor GP2Y1010AU0F
/**user define**/ int voutPin = A0; 
//Connect Vo of dust sensor Vo to Arduino A0 pin int ledPin = 2; 
//Connect LED(3pin) of dust sensor to Arduino D2 pin
*/
/**system define**/ 

int samplingTime = 280; 
int deltaTime = 40; 
int sleepTime = 9680; 
int voMeasured = 0; 
float calcVoltage = 0; 
float dustDensity = 0;


void setup(){

 Serial.begin(9600);
 pinMode(ledPin,OUTPUT);

}


void loop(){

 digitalWrite(ledPin,LOW); // power on the LED
 delayMicroseconds(samplingTime);

 voMeasured = analogRead(voutPin); // read the dust value

 delayMicroseconds(deltaTime);
 digitalWrite(ledPin,HIGH); // turn the LED off
 delayMicroseconds(sleepTime);

 // 0 - 5V mapped to 0 - 1023 integer values
 // recover voltage
 calcVoltage = (float)voMeasured * (5.0 / 1024.0);

 // linear eqaution taken from http://www.howmuchsnow.com/arduino/airquality/
 // Chris Nafis (c) 2012
 if ( calcVoltage >= 0.6 )
 {
     dustDensity = 0.17 * calcVoltage - 0.1;
 }
 else
 {
     dustDensity = 0;
 }

 Serial.print("Raw Signal Value (0-1023): ");
 Serial.print(voMeasured);

 Serial.print(" - Voltage: ");
 Serial.print(calcVoltage);
 Serial.print("V");

 Serial.print(" - Dust Density: ");

 if( calcVoltage > 3.5 )
 {
    Serial.print(">");  // unit: mg/m3
 }
 
 Serial.print(dustDensity);
 Serial.println(" mg/m3");

 delay(1000);
}