My HC-SR04 always return 1149

Other Hardware General Electronics
1

https://www.picz.in.th/image/Y57Ii8

It always return 1149.
Is it broken , is there anyway to fix it

this is my code

2

You only read the sensor once and that is before setup() so the result of the reading is suspect. Try reading the sensor in the loop() function.

void loop() {
  delay(50);
  int d = sonar.ping_cm();
  Serial.println(d);
}
3

THX alot guy why did forget about that