Laser 미세먼지 센서 data 수집 Coding

[hl5lh]

                                                                - Laser 미세먼지 센서 -

//******************************

//*Abstract: Read value of PM1,PM2.5 and PM10 of air quality

//*Product Link: http://www.dfrobot.com.cn/goods-1113.html

//

//*Version：V3.1

//*Author：Zuyang @ HUST

//*Modified by Cain for Arduino Hardware Serial port compatibility

//*Date：March.25.2016

//******************************

#include <Arduino.h>

#define LENG 31 //0x42 + 31 bytes equal to 32 bytes

#include <Servo.h>

unsigned char buf[LENG];

int PM01Value=0; //define PM1.0 value of the air detector module

int PM2_5Value=0; //define PM2.5 value of the air detector module

int PM10Value=0; //define PM10 value of the air detector module

Servo servo1; // pm 1.0 미세먼지 지시

Servo servo2; // pm 2.5 미세먼지 지시

Servo servo3; // pm 10 미세먼지 지시

void setup()

{

Serial.begin(9600); //使用串口0

Serial.setTimeout(1500); //设置超时时间为1500毫秒（大于传感器传送数据周期1秒）

servo1.attach(2); // pin 2 pm 1.0 servo pin

servo2.attach(3); // pin 3 pm 2.5 servo pin

servo3.attach(4); // pin 4 pm 10 servo pin

servo1.write(0); // 미세먼지 pm 1.0 0 에서 시작

servo2.write(0); // 미세먼지 pm 2.5 0 에서 시작

servo3.write(0); // 미세먼지 pm 10 0 에서 시작

delay(10);

}

void loop()

{

if(Serial.find(0x42)){ //检测到0x42时，开始读取

Serial.readBytes(buf,LENG);

if(buf[0] == 0x4d){

if(checkValue(buf,LENG)){

PM01Value=transmitPM01(buf); //count PM1.0 value of the air detector module

PM2_5Value=transmitPM2_5(buf);//count PM2.5 value of the air detector module

PM10Value=transmitPM10(buf); //count PM10 value of the air detector module

}

}

}

static unsigned long OledTimer=millis();

if (millis() - OledTimer >=1000)

{

OledTimer=millis();

Serial.print("PM1.0: ");

Serial.print(PM01Value);

Serial.println(" ug/m3");

Serial.print("PM2.5: ");

Serial.print(PM2_5Value);

Serial.println(" ug/m3");

Serial.print("PM1 0: ");

Serial.print(PM10Value);

Serial.println(" ug/m3");

Serial.println();

/*

int angle1 = map(PM01Value,0,500,0,160);

servo1.write(angle1);

delay(1000);

int angle2 = map(PM2_5Value,0,500,0,160);

servo2.write(angle2);

delay(3000);

int angle3 = map(PM10Value,0,500,0,160);

servo3.write(angle3);

delay(20);

servo1.write(0);

delay(500);

servo2.write(0);

delay(500);

Serial.println(angle1);

Serial.println(angle2);

Serial.print(angle3);

delay(2000);

*/

}

}

char checkValue(unsigned char *thebuf, char leng)

{

char receiveflag=0;

int receiveSum=0;

for(int i=0; i<(leng-2); i++){

receiveSum=receiveSum+thebuf[i];

}

receiveSum=receiveSum + 0x42;

if(receiveSum == ((thebuf[leng-2]<<8)+thebuf[leng-1])) //check the serial data

{

receiveSum = 0;

receiveflag = 1;

}

return receiveflag;

}