YARPF

int pinButton = 9;
int pinLED = 13;

void setup() {
  pinMode(pinLED, OUTPUT);
  pinMode(pinButton, INPUT);
}

void loop() {

  int buttonState = digitalRead(pinButton);

  if (buttonState == HIGH) {
    digitalWrite(pinLED, HIGH);
  }
  else {
    digitalWrite(pinLED, LOW);
  }
}

int pinButton = 9;
int pinLED = 13;
int stateLED = 0;

void setup() {
  pinMode(pinLED, OUTPUT);
  pinMode(pinButton, INPUT);
}

void loop() {

  int buttonState = digitalRead(pinButton);

  if (buttonState == HIGH) {
    if (stateLED == 0) {
      digitalWrite(pinLED, HIGH);
    }
    else {
      digitalWrite(pinLED, LOW);     
    }

    stateLED = 1 - stateLED;

    delay(500);
  }
  
}

int pinButton = 9;
int pinLED = 13;

void setup() {
  pinMode(pinLED, OUTPUT);
  pinMode(pinButton, INPUT);
}

void loop() {

  int buttonState = digitalRead(pinButton);

  if (buttonState == HIGH) {
    digitalWrite(pinLED, HIGH);
    delay(5000);
    digitalWrite(pinLED, LOW);
  }
}