const int ldr = A0;
const int led = 10;


void setup() {
  // put your setup code here, to run once:
  pinMode(ldr, INPUT);
  pinMode(led, OUTPUT);
  Serial.begin(115200);

}

void loop() {
  // put your main code here, to run repeatedly:

  int inputValue = analogRead(ldr);
  int outputValue = map(inputValue, 0, 1023, 0, 255);

  Serial.print(inputValue);
  Serial.print(",  ");
  Serial.println(outputValue);

  analogWrite(led, outputValue);

  delay(10);
}