// half push
int halfPin =  12;
// shutter push
int phshPin = 10;


void setup()   {
  pinMode(halfPin, OUTPUT);
  pinMode(phshPin, OUTPUT);
}


void loop()
{
  // half push
  digitalWrite(halfPin, HIGH);
  delay(1000);

  // shutter push  
  digitalWrite(halfPin, LOW);
  digitalWrite(phshPin, HIGH);
  delay(1000);

  // off
  digitalWrite(phshPin, LOW);
  delay(1000);
}