void setup() {
  Serial.begin(9600);
pinMode(A0, OUTPUT);


}

void loop() {
  int sensorValue;
sensorValue=analogRead(A0);
Serial.print("Sensor Value: ");
Serial.println(sensorValue);
float volt;
volt=sensorValue*(5.0/1023.0);
Serial.println("Voltage: ");
Serial.print(volt);
analogWrite(A0,map(sensorValue,0,1023,0,255));
delay(1000);


}