const int sensor = A0;

float luminosidade;

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

  pinMode(sensor, INPUT);
  pinMode(8, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  luminosidade = map(analogRead(sensor),1015,8,0,100);
  Serial.println(luminosidade);
  delay(200);

  if (luminosidade < 40){
    digitalWrite(8, HIGH);
    
  }
  else{
    digitalWrite(8, LOW);

  }
    
  



}