UV ML8511 Sensor

Projects Programming
9

Yes that is where I am encountering challenges I tried but this too is not working.

 {
  int uvLevel = averageAnalogRead(UVOUT);
  int refLevel = averageAnalogRead(REF_3V3);
  float uvIntensity = 15.0;
   if (uvIntensity > 11.0)
    {
  //Use the 3.3V power pin as a reference to get a very accurate output value from sensor
  float outputVoltage = 3.3 / refLevel * uvLevel;
  float uvIntensity = mapfloat(outputVoltage, 0.99, 2.9, 0.0, 15.0);
  digitalWrite (buzzer, HIGH);
  Serial.print("MP8511 output: ");
  Serial.print(uvLevel);
  Serial.print(" MP8511 voltage: ");
  Serial.print(outputVoltage);
  lcd.setCursor(4,1);
  lcd.print("UV Intensity:");
  lcd.setCursor(0,1);
  lcd.print(uvIntensity);
  delay(1000);
  lcd.clear();
  }

 else

 {
    
       digitalWrite(buzzer, LOW);
 }


  
  }