zunoSendDeviceToSleep()

This function sends the device to sleep. For ZUNO_SLEEPING_MODE_SLEEPING mode Z-Uno will wake up after wakeup period (set up via Wakeup Command Class) or on INT1 going LOW or Key Scanner detects press. For ZUNO_SLEEPING_MODE_FREQUENTLY_AWAKE mode Z-Uno will wake up on packet recieved, after a wake up period defined using zunoSetBeamCountWU() or on INT1 going LOW or Key Scanner detects press.
// LED pin number
// 13 pin - user LED of Z-Uno board
#define LED_PIN 13

// Last saved LED value
byte currentLEDValue;

ZUNO_SETUP_CHANNELS(ZUNO_SWITCH_BINARY(getter, setter));

// next macro sets up the sleeping mode
// device will wake up by user request and regulary listening for packets
ZUNO_SETUP_SLEEPING_MODE(ZUNO_SLEEPING_MODE_FREQUENTLY_AWAKE);

// the setup routine runs once when you press reset:
void setup() {
  pinMode(LED_PIN, OUTPUT); // setup pin as output
}

// the loop routine runs over and over again forever:
void loop() { 
  // this function sends the device into sleep
  zunoSendDeviceToSleep();
}

void setter(byte value) {
  // value is a variable, holding a "new value"
  // which came from the controller or other Z-Wave device
  if (value > 0) {                // if greater then zero
    digitalWrite (LED_PIN, HIGH); //turn the LED on (HIGH is the voltage level)
  } else {                        // if equals zero
    digitalWrite(LED_PIN, LOW);   //turn the LED off by making the voltage LOW
  } 
  // we'll save our value for the situation, when the controller will ask us about it
  currentLEDValue = value;
}
 
byte getter() {
   return currentLEDValue;
}