 void loop()
 {
     int pm25, pm10;
-    bool ok;
 
     sensor.set_sleep(false);
     delay(10000);
     sensor.query_data(&pm25, &pm10);
-    ok = sensor.crc_ok();
     sensor.set_sleep(true);
 
-    display_data(pm25, pm10, ok);
+    display_data(pm25, pm10);
 
     delay(60000);
 }


Sds011 sensor(mySerial);

void display_data(int pm25, int pm10, bool crc)
{
    static int count = 0;


    display.print(10*pm25/PM25_NORM);
    display.setCursor(8*6, 8*2);
    display.println(10*pm10/PM10_NORM);

    display.print("Count=");
    display.println(count++);
