#define LED 19
#define PB 27

void setup() 
{
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Blink program started");

  pinMode(LED, OUTPUT);
  pinMode(PB, INPUT);
}

void loop() 
{
  // put your main code here, to run repeatedly:
  if (digitalRead(PB) == 1)
  {
    digitalWrite(LED, HIGH);
  }
  else
  {
    digitalWrite(LED, LOW);
  }

  
}