err_t print_result(const char* str,u16 value)
{
    if(NULL==str)
        return ERROR_PARAM;
    Serial.print(str);
    Serial.println(value);


    return NO_ERROR;
}

const char *str[]={"sensor num: ","PM1.0 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM2.5 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM10 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM1.0 concentration(Atmospheric environment,unit:ug/m3): ",
                    "PM2.5 concentration(Atmospheric environment,unit:ug/m3): ",
                    "PM10 concentration(Atmospheric environment,unit:ug/m3): ",
                    };

PM1.0 concentration(CF=1,Standard particulate matter,unit:ug/m3): 18
PM2.5 concentration(CF=1,Standard particulate matter,unit:ug/m3): 26
PM10 concentration(CF=1,Standard particulate matter,unit:ug/m3): 30
PM1.0 concentration(Atmospheric environment,unit:ug/m3): 18
PM2.5 concentration(Atmospheric environment,unit:ug/m3): 26
PM10 concentration(Atmospheric environment,unit:ug/m3): 30

#include "Seeed_HM330X.h"
#ifdef  ARDUINO_SAMD_VARIANT_COMPLIANCE
  #define SERIAL SerialUSB
#else
  #define SERIAL Serial
#endif


HM330X sensor;
u8 buf[30];


const char *str[]={"sensor num: ","PM1.0 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM2.5 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM10 concentration(CF=1,Standard particulate matter,unit:ug/m3): ",
                    "PM1.0 concentration(Atmospheric environment,unit:ug/m3): ",
                    "PM2.5 concentration(Atmospheric environment,unit:ug/m3): ",
                    "PM10 concentration(Atmospheric environment,unit:ug/m3): ",
                    };

err_t print_result(const char* str,u16 value)
{
    if(NULL==str)
        return ERROR_PARAM;
    SERIAL.print(str);
    SERIAL.println(value);

    return NO_ERROR;
}

/*parse buf with 29 u8-data*/
err_t parse_result(u8 *data)
{
    u16 value=0;
    err_t NO_ERROR;
    if(NULL==data)
        return ERROR_PARAM;
    for(int i=1;i<8;i++)
    {
         value = (u16)data[i*2]<<8|data[i*2+1];
         print_result(str[i-1],value);

    }
}

err_t parse_result_value(u8 *data)
{
    if(NULL==data)
        return ERROR_PARAM;
    for(int i=0;i<28;i++)
    {
        SERIAL.print(data[i],HEX);
        SERIAL.print("  ");
        if((0==(i)%5)||(0==i))
        {
            SERIAL.println(" ");
        }
    }
    u8 sum=0;
    for(int i=0;i<28;i++)
    {
        sum+=data[i];
    }
    if(sum!=data[28])
    {
        SERIAL.println("wrong checkSum!!!!");
    }
    SERIAL.println(" ");
    SERIAL.println(" ");
    return NO_ERROR;
}

void setup()
{

    SERIAL.begin(115200);
    delay(100);
    SERIAL.println("Serial start");
    if(sensor.init())
    {
        SERIAL.println("HM330X init failed!!!");
        while(1);
    }

}


void loop()
{
    if(sensor.read_sensor_value(buf,29))
    {
        SERIAL.println("HM330X read result failed!!!");
    }
    parse_result_value(buf);
    parse_result(buf);
    SERIAL.println(" ");
    SERIAL.println(" ");
    SERIAL.println(" ");
    delay(5000);
}