   };
   stepper.disableOutputs();
 
-  pinMode(DOOR_SENSOR, INPUT_PULLUP);
+  pinMode(GROTE_SCHAKELAAR_SENSOR, INPUT_PULLUP);
 
   ledcSetup(BUZ_CHANNEL, 2000, 8);
   ledcAttachPin(BUZZER_GPIO, BUZ_CHANNEL);


// See https://mailman.makerspaceleiden.nl/mailman/private/deelnemers/2019-February/019837.html
//
#define DOOR_SENSOR       (34)
#define DOOR_IS_OPEN      (LOW)
// #define AARTLED_GPIO      (16) // weggehaald, maar 2019, Lucas

#define BUZZ_TIME (5 * 1000) // Buzz 8 seconds.



  reader.onSwipe([](const char * tag) -> ACBase::cmd_result_t {

    if (machinestate > CHECKINGCARD) {
      Debug.printf("Ignoring a normal swipe - as we're still in some open process.");
      return ACBase::CMD_CLAIMED;
