buzzer does not work with distance sensor hc-sr04

Projects General Guidance
25

This works here.
Try:

#define trigPin 7
#define echoPin 8
#define buzzerPin 10
unsigned int duration, distance;

void setup()
{
  Serial.begin(9600);
  pinMode(trigPin,OUTPUT);
  pinMode(buzzerPin,OUTPUT);
  pinMode(echoPin,INPUT);
}

void loop()
{
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(1000);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  Serial.print(distance);
  Serial.println("cm");
  delay(500);
  
  if(distance > 100)
  {
    digitalWrite(10,LOW);
  }
  else
  {
    digitalWrite(10,HIGH);
  }
}