ZUNO (z-wave arduino) ownhab integration for custom servo actuator

I’m working on a z-wave servo actuator device and it’s integration with openhab2 (using the ZUNO which is similar to a arduino with integrated z-wave).

For the actuator I’m using one multilevel channel:


Additional information under: http://z-uno.z-wave.me/Reference/ZUNO_SWITCH_MULTILEVEL/

The device is discovered by the auto discovery as node28 and I was able to add it. Here are the logs:

2017-12-31 10:43:21.771 [home.event.InboxAddedEvent] - Discovery Result with UID 'zwave:device:ddd3b615:node28' has been added.  
2017-12-31 10:44:47.758 [me.event.InboxRemovedEvent] - Discovery Result with UID 'zwave:device:ddd3b615:node28' has been removed. 
2017-12-31 10:44:47.760 [hingStatusInfoChangedEvent] - 'zwave:device:ddd3b615:node28' changed from UNINITIALIZED to INITIALIZING 
2017-12-31 10:44:47.761 [hingStatusInfoChangedEvent] - 'zwave:device:ddd3b615:node28' changed from INITIALIZING to OFFLINE (BRIDGE_OFFLINE): Controller is offline 
2017-12-31 10:44:47.761 [hingStatusInfoChangedEvent] - 'zwave:device:ddd3b615:node28' changed from OFFLINE (BRIDGE_OFFLINE): Controller is offline to ONLINE
2017-12-31 10:44:47.768 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:ddd3b615:node28' has been updated.  
2017-12-31 10:44:47.772 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:ddd3b615:node28' has been updated.
2017-12-31 10:44:47.776 [me.event.ThingUpdatedEvent] - Thing 'zwave:device:ddd3b615:node28' has been updated.

It is being shown as “Unknown Device” as it’s not in the Z-Wave database (which I understand is hard coded in the binding). And most likely here is the problem.

I have created an item file for it:

Dimmer boiler_servo "Boiler Servo" { zwave="28:command=SWITCH_MULTILEVEL" }

And added it in the site map file, but it is not being shown:

Default item=boiler_servo

My target is to be able to control the actuator from the site map which is currently not possible. What needs to be done?

I assume the issue is being shown as “unknown device” and needs to be added to the database. Would this be possible with a file, without having to recompile the z-wave binding?

Beside this, I’m wondering why my definition in the site map is not being shown at all?

Here is the full arduino code:

 * That is a simple servo test. It just drives a single servo

#include <ZUNO_SERVO.h> 

// For some cases use UART (Serial0/Serial1)
// It's a most comfortable way for debugging
// By default we use built-in USB CDC (Serial)
#define MY_SERIAL Serial

// Connect servo PWM to Z-Uno digital pin 12 
ServoController servo(12);

// variable to store current dimmer value
byte lastSetDimmer;

// next macro sets up the Z-Uno channels
// in this example we set up 1 switch multilevel channel
// you can read more on http://z-uno.z-wave.me/Reference/ZUNO_SWITCH_MULTILEVEL/

void setup() {


void setter(byte value) {
  byte tempVariable;
  // value is a variable, holding a "new value"
  // which came from the controller or other Z-Wave device
  if (value > 99) {
    // by Z-Wave specification, this value can't be more then 99
    value = 99;
  // but the Servo angle scale ranges from 0 to 180
  // we need to prepare our "value" for this new scale
  tempVariable = ((word)value)*180/99;
  // now we set the Servo position
  // let's save our value for the situation, when the controller will ask us about it
  lastSetDimmer = value;

// getter function is called once the controller
// or other device in the network asks Z-Uno about
// it's current level
byte getter(void) {
  // return previously saved (in getter()) value
  return lastSetDimmer;

void loop() {

  MY_SERIAL.print("current value:");


Any help is greatly appreciated.