int led = 13;
int ledFade = 0;
char buffer[40];

template <typename T> Print& operator<<(Print& printer, T value)
{
  printer.print(value);
  return printer;
}

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

void loop()
{
  int sensorValue = analogRead(A0);
  float voltage = sensorValue * (5.0 / 1024.0);
  ledFade = map(sensorValue, 0, 1023, 0, 255);
  analogWrite(led, ledFade);
  Serial << "LedFade:" << ledFade << " AnalogValue:" << sensorValue << " Voltage:" << voltage << '\n';
  delay(1);
}