// Uses a PIR sensor to detect movement
// https://github.com/jamesmoulding/motion-sensor/blob/master/PIR2.ino

int inputPin = 7;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;                    // variable for reading the pin status
void setup() {
pinMode(inputPin, INPUT);     // declare sensor as input
  Serial.begin(9600);
}
void loop(){
  val = digitalRead(inputPin);  // read input value
if (val == HIGH) {            // check if the input is HIGH
delay(150);
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 {
delay(300);    
if (pirState == HIGH){
// we have just turned off
      Serial.println("Motion ended!");
// We only want to print on the output change, not state
      pirState = LOW;
    }
  }
}