pulseIn(), photogate, time measurement

Projects Discussion and Showcase Science and Measurement
2

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unsigned long time;
void setup ()
{
  Serial.begin(9600);  
  pinMode(7,INPUT);
}

void loop ()
{
  time = pulseIn(7,LOW);
  if (time > 0)
  {
    Serial.println(time);
  }
}

Which version of the IDE are you using ? 1.0 or 0.22 ?
How did you connect the photogate ? Please post schematics?