一、器材

ZH03B

 资料：http://资料下载：https://pan.baidu.com/s/1R5SN2tdo6uQ4-5TypvfVdg 提取码：v6b4

https://wiki.dfrobot.com.cn/_SKU_SEN0177_PM2.5%E6%BF%80%E5%85%89%E7%B2%89%E5%B0%98%E4%BC%A0%E6%84%9F%E5%99%A8

 需要注意的是上电之后需要等待10S之后才有数据

传来的数据11,12字节为PM1.0浓度，13，14字节是PM2.5浓度，15，16字节是PM10浓度

实测5，6字节也是PM1.0浓度，7,8字节也是PM2.5浓度，9，10字节也是PM10浓度

arduino uno

 二、接线

三、程序

#include <Arduino.h>
#include <SoftwareSerial.h>
#define LENG 31   //0x42 + 31 bytes equal to 32 bytes
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

SoftwareSerial PMSerial(10, 11); // RX, TX

void setup()
{
  PMSerial.begin(9600);   //使用软串口，10口等效为RX，11口等效为TX
  PMSerial.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）
  Serial.begin(9600);
}

void loop()
{
  if(PMSerial.find(0x42)){    //检测到0x42时，开始读取
    PMSerial.readBytes(buf,LENG);
    //值我在这里给*0.0625,也可以不乘
    PM01Value=transmitPM01(buf)*0.0625; //count PM1.0 value of the air detector module
    PM2_5Value=transmitPM2_5(buf)*0.0625;//count PM2.5 value of the air detector module
    PM10Value=transmitPM10(buf)*0.0625; //count PM10 value of the air detector module 
  }

  static unsigned long OledTimer=millis();  //每隔1S打印1次PM2.5,1.0,10的值
    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();
    }
  
}
//读取PM1.0
int transmitPM01(unsigned char *thebuf)
{
  int PM01Val;
  PM01Val=((thebuf[3]<<8) + thebuf[4]); //count PM1.0 value of the air detector module
  return PM01Val;
}

//读取PM2.5
int transmitPM2_5(unsigned char *thebuf)
{
  int PM2_5Val;
  PM2_5Val=((thebuf[5]<<8) + thebuf[6]);//count PM2.5 value of the air detector module
  return PM2_5Val;
  }

//读取PM10
int transmitPM10(unsigned char *thebuf)
{
  int PM10Val;
  PM10Val=((thebuf[7]<<8) + thebuf[8]); //count PM10 value of the air detector module  
  return PM10Val;
}

四、效果