//detect switch closure
//and count how many time the switch got hit, this implements a very simple debouncing scheme 
//10/15/2008  BitMonkey Labs
//

int inputPin=7; 
//int outputPin=13;
int lastSwitchState=LOW;
int counter=0;

void setup()
{
  pinMode(inputPin, INPUT);
  //pinMode(outputPin, OUTPUT);
  Serial.begin(57600);
}

void loop()
{
  if(digitalRead(inputPin)==HIGH)
  {
      delay(200);    //wait for the plate bounce to settle and read again
       
      if((digitalRead(inputPin)==HIGH)&&(lastSwitchState==LOW))
      //prevent switch from retriggering by just holding it down 
      //in engineerese we are performing "edge detection"
      {
         counter++;        //increment the counter variable every time switch is hit
         Serial.println(counter);    
      }
      
      lastSwitchState=digitalRead(inputPin); 
  }
}