void setup() {
  pinMode(15,INPUT);
  pinMode(10,OUTPUT);
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");
}

void loop() {
  int pir=digitalRead(15);
  if(pir==HIGH)
  {
    Serial1.println("Motion Detected");
    digitalWrite(10,HIGH);
    delay(50);
  }
  else
  {
    Serial1.println("No motion detected");
    digitalWrite(10,LOW);
    delay(50);
  }
}