void setup() {
  Serial.begin(115200);
}

void loop() {
  sensorValue = analogRead(analogInPin);            
  outputValue = map(sensorValue, 0, 1023, 0, 255);  
  analogWrite(analogOutPin, outputValue);           

  Serial.print("sensor = " );                       
  Serial.print(sensorValue);      
  Serial.print("\t output = ");      
  Serial.println(outputValue);   
  
  delay(2);         
}