void setup() {
  pinMode(15,INPUT);
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");
}

void loop(){
  int pir = digitalRead(15);
  if(pir == HIGH)
  {
    Serial1.println("MOVEMENT DECTECTED");
    delay(500);
  } 
  else
  {
    Serial1.println("NO MOVEMENT DECTECTED");
    delay(500);
  }
}