# Help with basic Z-Wave app for Z-Uno

**URL:** <https://community.homey.app/t/help-with-basic-z-wave-app-for-z-uno/87682>\
**Category:** Questions & Help\
**Tags:** z-wave, homey-pro\
**Created:** [August 22, 2023, 12:58am UTC](https://community.homey.app/t/help-with-basic-z-wave-app-for-z-uno/87682 "2023-08-22T00:58:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Johan\_Rossouw](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/johan_rossouw/32/79349_2.png) [@Johan\_Rossouw](https://community.homey.app/u/Johan_Rossouw)\
**Post date:** [August 22, 2023, 12:58am UTC](https://community.homey.app/t/help-with-basic-z-wave-app-for-z-uno/87682/1 "2023-08-22T00:58:43Z")

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Hi,

I am busy learning the basics on how to get a simple Z-Wave app working with my custom Z-Uno firmware. I got to a point where the app installs and i can add/remove the z-uno device. The device is a basic switch with battery reporting. I have tried coding it based on the examples available here an elsewhere, but still have some issues. The app code is available here:

[https://github.com/jrossouw/page.rossouw.homey.zuno.button](https://github.com/jrossouw/page.rossouw.homey.zuno.button)

When I install the app i can see the device sending reports in the inspect console. I do however see some errors:

 ![Screenshot 2023-08-22 at 8.55.45 am](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/1/9/19ad57b71558eb69a6e82fd6434a1c2c9a3df825.png)

Also when then clicking on the device to toggle its stage i get an error “Missing Capability Listener: onoff”. I cannot find the correct way to add this capabilities listner.

Any help will be greatly appreciated.

Kind regards,  
Johan

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<div class="post-metadata">

**Author:** ![Johan\_Rossouw](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/johan_rossouw/32/79349_2.png) [@Johan\_Rossouw](https://community.homey.app/u/Johan_Rossouw)\
**Post date:** [August 22, 2023, 5:02am UTC](https://community.homey.app/t/help-with-basic-z-wave-app-for-z-uno/87682/2 "2023-08-22T05:02:34Z")

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I managed to get around the missing capability issue and extend the example a bit. Latest code in github.