夏普 GP2Y1010AU0F 灰尘传感器
来自Jack's Lab
（版本间的差异）
(→程序) |
(→程序) |
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| 第49行： | 第49行： | ||
const int postingInterval = 10000; //delay between updates to Pachube.com | const int postingInterval = 10000; //delay between updates to Pachube.com | ||
| − | int dustPin=0; | + | int dustPin = 0; |
| − | int ledPower=2; | + | int ledPower = 2; |
| − | int delayTime=280; | + | int delayTime = 280; |
| − | int delayTime2=40; | + | int delayTime2 = 40; |
| − | float offTime=9680; | + | float offTime = 9680; |
| − | int dustVal=0; | + | int dustVal = 0; |
| − | int i=0; | + | int i = 0; |
| − | float ppm=0; | + | float ppm = 0; |
char s[32]; | char s[32]; | ||
float voltage = 0; | float voltage = 0; | ||
| 第77行： | 第77行： | ||
delayMicroseconds(delayTime); | delayMicroseconds(delayTime); | ||
dustVal = analogRead(dustPin); // read the dust value | dustVal = analogRead(dustPin); // read the dust value | ||
| − | ppm = ppm+dustVal; | + | ppm = ppm + dustVal; |
delayMicroseconds(delayTime2); | delayMicroseconds(delayTime2); | ||
digitalWrite(ledPower,HIGH); // turn the LED off | digitalWrite(ledPower,HIGH); // turn the LED off | ||
| 第101行： | 第101行： | ||
ppm=0; | ppm=0; | ||
Serial.println(dataString); | Serial.println(dataString); | ||
| − | delay( | + | delay(3000); |
} | } | ||
} | } | ||
2015年7月17日 (五) 18:17的版本
目录 |
1 概述
GP2Y1010 Datasheet: https://www.sparkfun.com/datasheets/Sensors/gp2y1010au_e.pdf
2 PIN
Sharp pin 1 (V-LED) => 5V (connected to 150ohm resister) Sharp pin 2 (LED-GND) => Arduino GND pin Sharp pin 3 (LED) => Arduino pin 2 Sharp pin 4 (S-GND) => Arduino GND pin Sharp pin 5 (Vo) => Arduino A0 pin Sharp pin 6 (Vcc) => 5V
3 电路
4 程序
/*
Interface to Sharp GP2Y1010AU0F Particle Sensor
Program by Christopher Nafis
Written April 2012
http://www.sparkfun.com/datasheets/Sensors/gp2y1010au_e.pdf
http://sensorapp.net/?p=479
Sharp pin 1 (V-LED) => 5V (connected to 150ohm resister)
Sharp pin 2 (LED-GND) => Arduino GND pin
Sharp pin 3 (LED) => Arduino pin 2
Sharp pin 4 (S-GND) => Arduino GND pin
Sharp pin 5 (Vo) => Arduino A0 pin
Sharp pin 6 (Vcc) => 5V
*/
#include <stdlib.h>
long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
const int postingInterval = 10000; //delay between updates to Pachube.com
int dustPin = 0;
int ledPower = 2;
int delayTime = 280;
int delayTime2 = 40;
float offTime = 9680;
int dustVal = 0;
int i = 0;
float ppm = 0;
char s[32];
float voltage = 0;
float dustdensity = 0;
float ppmpercf = 0;
void setup(){
Serial.begin(9600);
pinMode(ledPower,OUTPUT);
delay(1000);
i=0;
ppm =0;
}
void loop(){
i=i+1;
digitalWrite(ledPower,LOW); // power on the LED
delayMicroseconds(delayTime);
dustVal = analogRead(dustPin); // read the dust value
ppm = ppm + dustVal;
delayMicroseconds(delayTime2);
digitalWrite(ledPower,HIGH); // turn the LED off
delayMicroseconds(offTime);
if((millis() - lastConnectionTime > postingInterval)) {
voltage = ppm/i*0.0049;
dustdensity = 0.17*voltage-0.1;
ppmpercf = (voltage-0.0256)*120000;
if (ppmpercf < 0)
ppmpercf = 0;
if (dustdensity < 0 )
dustdensity = 0;
if (dustdensity > 0.5)
dustdensity = 0.5;
String dataString = "";
dataString += dtostrf(voltage, 9, 4, s);
dataString += ",";
dataString += dtostrf(dustdensity, 5, 2, s);
dataString += ",";
dataString += dtostrf(ppmpercf, 8, 0, s);
i=0;
ppm=0;
Serial.println(dataString);
delay(3000);
}
}
5 参考
- http://www.howmuchsnow.com/arduino/airquality/
- http://sensorapp.net/sharp-dust-sensor-and-arduino/
- https://www.sparkfun.com/datasheets/Sensors/gp2y1010au_e.pdf
- http://blog.yeelink.net/?p=184
