# Add buttons to IR device

**URL:** <https://community.homey.app/t/add-buttons-to-ir-device/10169>\
**Category:** Devices\
**Created:** [March 6, 2019, 8:07am UTC](https://community.homey.app/t/add-buttons-to-ir-device/10169 "2019-03-06T08:07:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Raskolnikov](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/raskolnikov/32/12566_2.png) [@Raskolnikov](https://community.homey.app/u/Raskolnikov)\
**Post date:** [March 6, 2019, 8:07am UTC](https://community.homey.app/t/add-buttons-to-ir-device/10169/1 "2019-03-06T08:07:16Z")

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I want to add my kitchen hood Witt WSU90S as an IR device. But when i try to copy from the remote I get this: “These buttons Homey already knows”.

The thing is this is my first device. Nothing happens when i press "Test. And if i click finish, the button is not added to the IR device. Can someone please help me?

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**Author:** ![Bos](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/bos/32/8527_2.png) [@Bos](https://community.homey.app/u/Bos)\
**Post date:** [April 5, 2019, 9:37am UTC](https://community.homey.app/t/add-buttons-to-ir-device/10169/2 "2019-04-05T09:37:50Z")

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I have the same problem. Homey indicates to know the buttons already… resulting in a device with no controles.

If homey already knows the ir signals, how can I access these? I tried the IR library but i cannot find them through the name of the product/ vendor