Vehicle counter using Arduino and loop detector

Projects General Guidance
19

I've posted the final code and schematic diagram we referred

int count = 100;
int previous = 0;
int sensorValue = 6;
int voltage;

void setup() 
{
  Serial.begin(115200);
  pinMode(sensorValue,INPUT_PULLUP);
}

void loop()
{
  delay(2000);
  voltage= digitalRead(sensorValue);
  if ( voltage == LOW)
  {
    Serial.println(voltage);  
    }
  else
  {    
    Serial.print("Car hai");
    Serial.println(voltage);

    if (previous != LOW)
    {
      Serial.println("Same car");
    }
    else
    {
      count--;
      Serial.print("count is ");
      Serial.println(count);
    }
  }
  previous =voltage;
}
![circuit diagram (1)|689x372](upload://3HUlXwC7CvkW2GkjhiqeyPdlThc.png)