#define LED_PIN 2
#define BTN_PIN 5

int btn_state;
int lastState; //Flag for keep state of LED

void setup() {
  // put your setup code here, to run once:
 // Serial.begin(115200);
 //Serial.println("Hello, ESP32-C6!");

  // Setup pins :
  pinMode(LED_PIN, OUTPUT);
  pinMode(BTN_PIN, INPUT_PULLUP);

  // First setup :
  digitalWrite(LED_PIN, LOW); // OFF LED
  lastState = 0; //set flag = 0
}

void loop() {
  // put your main code here, to run repeatedly:
  
  btn_state = digitalRead(BTN_PIN);

  if(btn_state == LOW) {

    if( lastState == 0 ) {
      digitalWrite(LED_PIN, HIGH); //ON LED
      lastState = 1;   
    }
    else {
      digitalWrite(LED_PIN, LOW); //OFF LED
      lastState = 0;     
    }

    delay(150);

  }

  // if(btn_state == LOW) {
  //   digitalWrite(LED_PIN, HIGH);
  // }
  // else {
  //   digitalWrite(LED_PIN, LOW) ;   
  // }

  //digitalWrite(LED_PIN, HIGH); 
  //delay(500); // this speeds up the simulation
  //digitalWrite(LED_PIN, LOW); 
  //delay(700); // this speeds up the simulation

}