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Looking for a Thread 2.4 GHz transmitter to control a light (lemmus.org)

submitted 2 weeks ago by eddiereasoner@lemmus.org to c/homeassistant@lemmy.world

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Hello people of Lemmy,

I have a light bar for my monitor and it has a remote that (I assume) uses a 2.4 GHz radio. Do you have any recommendations for a Thread-enabled transmitter so I can control it from HASS?

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[–] funkajunk@lemmy.world 0 points 2 weeks ago (1 children)

It most likely uses regular old infrared

Try to use the remote from the other side of the door and it probably won't work.

[–] eddiereasoner@lemmus.org 0 points 2 weeks ago (1 children)

I’m completely sure it uses 2.4GHz.

https://a.co/d/06kXPVsY

[–] hendrik@palaver.p3x.de 0 points 2 weeks ago* (last edited 2 weeks ago)

Here's someone reverse-engineering the device: https://github.com/Lexy1972/Reverse-Engineer-a-Quntis-Monitor-LED-Bar-Controller

I'd say an ESP32-C6 with an NRF24L01 and some custom code would probably work as a bridge. The ESP32-C6 (and H2) can do Thread. And the NRF24 blast out 2.4GHz signals. I have no clue how Tread and Matter work, though. If it's HASS, it's probably easier to skip all the Thread and Matter stuff and write some ESPHone component and forward it over Wifi. Basically an RF bridge. But seems like it's a major coding and soldering project.

[–] roofuskit@lemmy.world 0 points 2 weeks ago

What makes you think a remote uses 2.4ghz? And why would a thread enabled radio help with that?

Most remotes are either IR or 433mhz. Both have multiple options for controlling from Home Assistant.

Can you post a listing for the device you're trying to control?

[–] avidamoeba@lemmy.ca 0 points 2 weeks ago

Any Matter/Thread IR blaster should work with HA. Assuming you already have a Thread radio on your HA.

[–] kayohtie@pawb.social 0 points 2 weeks ago

Can you share photos of the underside of the remote and/or light where it lists either "FCC ID" or "Contains FCC ID"? I can't find a listing on it anywhere to figure out what it does, and a LOT of those labels for radio frequency in Amazon images are straight up lies. There's so much noise on those drop-shipped items.