/*
   PIR sensor tester
*/

int ledPin = 12;
int inputPin = 14;
int pirState = LOW;
int val = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(inputPin, INPUT);

  Serial.begin(9600);
}

void loop() {
  val = digitalRead(inputPin);
  if (val == HIGH) {
    digitalWrite(ledPin, HIGH);
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      // we only want to print on the output change, not state
      pirState = HIGH;
      }
  } else {
   digitalWrite(ledPin, LOW); 
   if (pirState == HIGH) {
     // we have just turned of
     Serial.println("Motion ended!");
     // we only want to print on the output change, not state
     pirState = LOW;
   }
  }
}