const int PIRpin=23;
const int BUZZERpin=22;
void setup(){
  pinMode (PIRpin,INPUT);
  pinMode (BUZZERpin,OUTPUT);
}
void loop() {
 int motion = digitalRead(PIRpin);
  if  (motion == HIGH) {
 digitalWrite(BUZZERpin,HIGH);
  }
     else {
   digitalWrite(BUZZERpin,LOW);
  }
}