My hcS04 ultrasonic sensor wont work.

Using Arduino Sensors
#1

It was previously working but then suddenly stopped. I have it in conjunction with a LCD display which is working fine. I have looked up many tutorials and none of them make a difference.

My code:

#include <LiquidCrystal.h>
#define trigPin 8
#define echoPin 9

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT); 
  lcd.begin(16, 2);
}

void loop() {
  lcd.setCursor(0, 1);
  lcd.print(millis()/1000);
  int duration, distance;
 digitalWrite(trigPin, HIGH);
 delayMicroseconds(1000);
 digitalWrite(trigPin, LOW);
 duration = pulseIn(echoPin, HIGH);
 distance = (duration/2) / 29.1;
 lcd.print(distance);
 Serial.print(distance);
 
 delay(500); 
  
}

I have the serial.print so I could see if it was the LCD, nothing displays their either.

Any suggestions. Thank you.

#2

Have you tried just using the NewPing library? At least to test with and narrow down where the problem might be?

#3