//                    +-\/-+
//                   1|o   |8  VCC/CE  RED/ORANGE
//  YELLOW   CSN     2|    |7  SCK     GREEN
//  -        SENSOR  3|    |6  MOSI    BLUE
//  BLACK    GND     4|    |5  MISO    VIOLET
//                    +----+

#include <MySensor.h>
#include <Bounce2.h>

#define NODE_ID 1
#define CHILD_ID 1

MySensor gw;
Bounce debouncer = Bounce();
int oldValue = -1;

MyMessage msg(NODE_ID, V_TRIPPED);

void setup()
{
  pinMode(4, INPUT);
  digitalWrite(4, HIGH);

  debouncer.attach(4);
  debouncer.interval(5);

  gw.begin(NULL, NODE_ID, false, 0);
  gw.present(CHILD_ID, S_DOOR);
}

void loop()
{
  debouncer.update();
  int value = debouncer.read();
  if (value != oldValue) {
     gw.send(msg.set(value==HIGH ? 1 : 0));
     oldValue = value;
  }
  gw.sleep(PCINT4,CHANGE, 0);
}