Project 25 GP2Y10 Dust Sensor

1.Introduction

GP2Y10 Dust Sensor uses Sharp optics sensing system which detects reflected light of dust with IR optics sensor. It can sense very tiny granule, such as cigarette and features low-power consumption and high resolution ratio.

2.Hardware Required

• Arduino Board *1

• V5 Shield*1

• USB Cable*1

• GP2Y10 Dust Sensor*1

• Dupont Line*4

3.Circuit Connection

4.Sample Code

int dustPin=A0;
float dustVal=0;
int ledPower=2;
int delayTime=280;
int delayTime2=40;
float offTime=9680;

void setup()
{
    Serial.begin(9600);
    pinMode(ledPower,OUTPUT);
    pinMode(dustPin, INPUT);
}
 
void loop()
{
    // ledPower is any digital pin on the arduino connected to Pin 3 on the sensor
    digitalWrite(ledPower,LOW); 
    delayMicroseconds(delayTime);
    dustVal=analogRead(dustPin); 
    delayMicroseconds(delayTime2);
    digitalWrite(ledPower,HIGH); 
    delayMicroseconds(offTime);
    delay(1000);
    if (dustVal>36.455)
    Serial.println((float(dustVal/1024)-0.0356)*120000*0.035);
}

5.Result

After uploading the codes, you can see the following value on serial monitor:

Data after testing in contrast to air quality：

• 3000 + = very bad

• 1050-3000 = bad

• 300-1050 = normal

• 150-300 = good

• 75-150 = very good

• 0-75 = tiptop