// Camila da Silva Sales
// Laboratório 04 - Interrupção Externa

const int pinoLed = 32;
const int pinoLDR = 36;
volatile boolean ledOn = false;

void IRAM_ATTR turnLED_ISR() {
  ledOn = digitalRead(pinoLDR);
}

void setup() {
  Serial.begin(115200);
  pinMode(pinoLDR, INPUT);
  pinMode(pinoLed, OUTPUT);
  digitalWrite(pinoLed, HIGH);
  attachInterrupt(digitalPinToInterrupt(pinoLDR), turnLED_ISR, RISING);
}

void loop() {
  delay(100);
  
  if(ledOn)
    digitalWrite(pinoLed, LOW);
  if(!ledOn)
    digitalWrite(pinoLed, HIGH);
   
  Serial.print("LDR digital read: ");
  Serial.println(digitalRead(pinoLDR));
  
  Serial.print("ledOn: ");
  Serial.println(ledOn);
  Serial.println();
}

// Camila da Silva Sales