# How to send IR signal using action flow card - App Development

**URL:** <https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869>\
**Category:** Developers\
**Tags:** app, infrared, homey-pro, ir\
**Created:** [December 13, 2025, 8:17pm UTC](https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869 "2025-12-13T20:17:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Jon\_Olnes](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jon_olnes/32/91360_2.png) [@Jon\_Olnes](https://community.homey.app/u/Jon_Olnes)\
**Post date:** [December 13, 2025, 8:17pm UTC](https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869/1 "2025-12-13T20:17:50Z")

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Hi!

I want to send IR signals with my Homey Pro 2019 and have started the convoluted route of developing my own app. I’ve set up the app, the flow cards and some mock prontohex IR signals (I will add my own later).

The only missing step is making Homey send the IR signals when the action card is triggered. How do I do this?

I realize I need something inside my actionCard.registerRunListener(), but I don’t know what.

My app is found here:

> **[GitHub - jonsoln/com.jb.IR: Homey IR App](https://github.com/jonsoln/com.jb.IR)**
>
> Homey IR App

Here are the guides I’ve used to get to where I am:

> [@Creating an Infrared (IR) device](https://community.homey.app/t/creating-an-infrared-ir-device/79385):
>
> This is a quick tutorial on how to create a new Infrared (IR) device for homey. Which unfortunately is not as simple as it should be due to bugs in the tools section of homey. This tutorial is for people who are comfortable creating homey apps, or capable to follow the instructions provided by athom. In most cases you should always attempt to find your IR device using the generic built in approach. (Add device → Homey → IR → Search for your device). However if your device is not available, i…

> <https://github.com/athombv/com.lg.ir-example/blob/main/.homeycompose/app.json>

When this app is working, I will publish a guide so other can recreate the app for their own IR devices.

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**Author:** ![Wim\_Post](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/wim_post/32/56793_2.png) [@Wim\_Post](https://community.homey.app/u/Wim_Post)\
**Post date:** [December 13, 2025, 8:37pm UTC](https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869/2 "2025-12-13T20:37:04Z")

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The IR-signal of a Homey Pro 2019 is very poor:

See my post here:

> [@\[APP\]\[Pro\] Deluxe Homeart - Your ambiance, your control! 🕯️mobile\_phone\_with\_arrow](https://community.homey.app/t/app-pro-deluxe-homeart-your-ambiance-your-control/130603/7):
>
> I have a 2019 pro and this Homey sends a apparently week IR-signal. I tested the candles with this set up and not all the candles switch on or off:

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**Author:** ![Jon\_Olnes](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jon_olnes/32/91360_2.png) [@Jon\_Olnes](https://community.homey.app/u/Jon_Olnes)\
**Post date:** [December 14, 2025, 8:42am UTC](https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869/3 "2025-12-14T08:42:36Z")

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I got it to work! I will post a guide in a separate post.

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**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [December 14, 2025, 9:12am UTC](https://community.homey.app/t/how-to-send-ir-signal-using-action-flow-card-app-development/146869/4 "2025-12-14T09:12:07Z")

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> [@Jon\_Olnes](#):
>
> I will post a guide in a separate post.

Please just edit the first post of this thread instead of creating a new thread about the exact same subject.