int sensor = 32;
int led = 21;
int value = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(led, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  value = analogRead(sensor);
  analogWrite(led, value / 4);
  Serial.println(value);
}