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Using a LightwaveRF Door Chime With VERA & the RFXtrx433

This guide shows how to use the recently released LightwaveRF Door Chimes in the VERA Z-Wave Controller using the RFXtrx433E USB 433.92 MHz transceiver with antenna.

The new LightwaveRF Door Chimes use the Byron SX protocol to communicate between the bell-push and chime-unit but have the added functionality of being able to send LightwaveRF commands from the bell-push.

This not only allows the bell-push to be paired to LightwaveRF sockets, dimmers and relays, but also allows VERA to Trigger Scenes when the bell-push is pressed.

NOTE: Unfortunately the VERA plugin for the RFXtrx433 doesn't support the Byron SX protocol directly, so there's no way to trigger the chime-unit from VERA.

Prerequisites

Connect the RFXtrx433E to the VERA Z-Wave Controller and follow our previous guide to install and configure the required plugin.

Make sure that you have "Automatically create devices" active in the VERA plugin - you may wish to follow this guide to get familiar with the plugin.

Configure the bell-push

By default the bell-push doesn't send any LightwaveRF commands at all so the first step is to configure it to send a LightwaveRF command that is recognised by the VERA plugin.

This is achieved by setting "dip-switches" inside the bell-push to send an "ON" action:

  • Open the bell-push carefully using a small screwdriver.
  • Set dip-switches 1 and 4 to ON.
  • Set dip-switches 2 and 3 to OFF.
  • Re-assemble the bell-push.

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Configuring the bell-push dip-switches

NOTE: During our testing we found that the VERA plugin would only recognise the "ON" action, it would not recognise any of the other actions listed in the LightwaveRF Door Chime manual.

Add the device to VERA

Next we need to create a device in VERA for the bell-push, fortunately this is incredibly simple:

  • Bring the bell-push within range of the RFXtrx433.
  • Press the bell-push.
  • The VERA plugin will detect the bell-push and automatically create the device!
  • VERA will restart the LUUP engine and two devices should appear in the VERA UI.
    NOTE: You may need to hard-refresh your web browser before the devices show.
  • A "Binary Light" device and a "Scene Controller" device should be created - they should look similar to the below in the VERA UI:

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Add the device to VERA

The bell-push is best used within VERA as a "Scene Controller" device.

It actually never sends an "OFF" signal anyway, which makes it difficult to use the "Binary Light" device as you would need to implement additional logic to turn the device "OFF" after some sort of delay.

By examining the VERA log files we can see that the VERA plugin generates a "Scene Controller" event every time the bell-push is pressed with a Scene ID of "1":

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Scene Controller Event

We can use this event to Trigger a Scene, but first let's remove the "Binary Light" device since we don't really need that:

  • Make a note of the "Address" shown above the "Binary Light" device.

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Remove device

  • Click the "Spanner" next to the "RFXtrx controller device" on the VERA UI.
  • Select the "Managed devices" tab and put a check-mark next to the "RFX Light" device - make sure you get the correct one based on the address noted down previously!
  • Click the "Delete selected devices & prevent automatic creation" button:

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Remove device

  • VERA will automatically restart the LUUP engine and the "Binary Light" device will be removed.
    NOTE: You may need to hard-refresh your web browser before the device disappears.

Trigger a Scene

Now with everything set-up correctly, we can construct a simple Scene that is Triggered from the bell-push Scene Controller event.

  • Use the VERA UI to create a new Scene with your required device actions - perhaps turning on a light.
  • Add a Trigger to the Scene.
  • In the Trigger pop-up, select the correct device from the drop-down list next to the "Device:" field:

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Trigger a Scene

  • Select "A scene is activated" from the drop-down list next to "What type of event is the trigger?: field.
  • Give the Trigger a name.
  • Enter "1" in the "Which scene number" field.
  • When finished, click "Back to triggers":

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Trigger a Scene

  • For our test Scene I simply entered some LUA code to log a message when the Scene was Triggered:

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Trigger a Scene

  • Confirm the changes and click the "SAVE button to save the Scene.

By examining the VERA log files again we can see that the Scene is Triggered every time the bell-push is pressed and the LUA code is executed:

Using a LightwaveRF Door Chime With Vera & the RFXtrx433Scene Triggered

Conclusion

We hope that you've found this application note useful and are now able to make full use of the LightwaveRF Door Chime!

Related Information

 

Copyright Vesternet 2015

Updated: 01/04/2015

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