Can I use a Bang & Olufsen remote to control Home Assistant?

Yes, with the right hardware. Bang & Olufsen remotes such as the Beo4 transmit on a 455 kHz infrared carrier, so you need a receiver built for 455 kHz. A DIY build around a TSOP7000 sensor, or a dedicated bridge like Lydbro Two, captures the commands and turns each button into a Home Assistant action.

Why won't a normal IR receiver or Broadlink read my B&O remote?

Most remotes use a 38 kHz infrared carrier, but Bang & Olufsen has used 455 kHz since the Beolink 1000. Standard IR receivers, learning remotes, and hubs like Broadlink are tuned for 38 kHz and simply cannot see a 455 kHz B&O signal.

Is there a modern alternative to the Lintronic TT455-RT-238?

Yes. The Lintronic converts a B&O remote to infrared, RS232, or relay outputs. Lydbro Two is a modern equivalent: it reads the 455 kHz signal from any B&O infrared remote and speaks to your smart home directly, with a native, local Home Assistant integration plus MQTT and webhooks for other systems.

A modern Lintronic TT455-RT-238 alternative

Bring any Bang & Olufsen infrared remote, Beo4 and beyond, into Home Assistant and the rest of your smart home.

Bang & Olufsen remotes do not speak the same infrared language as everything else, so an ordinary smart-home IR receiver cannot read them. For years the Lintronic TT455-RT-238 was the go-to converter. This guide explains why B&O infrared is different, what the Lintronic did, and the modern ways to turn a B&O remote into smart-home actions.

Why Bang & Olufsen infrared is different

Most remotes transmit on a 38 kHz infrared carrier. Bang & Olufsen has used 455 kHz since the Beolink 1000, which is part of why B&O remotes reach further and are more forgiving to aim, but also why standard IR receivers, learning remotes, and hubs like Broadlink simply cannot see them. To capture a Beo4 or any other B&O remote, you need hardware built for 455 kHz.

What the Lintronic TT455-RT-238 did

The Lintronic TT455-RT-238 is a universal signal converter: it receives commands from a B&O remote and turns them into outgoing actions, standard 38 kHz infrared, RS232, or relay contacts. A single press on the Beo4 could start a projector, dim the lights, and lower a screen. It solved the 455 kHz problem and became a staple of B&O custom installs. The catch today is that it converts to IR, RS232, and relays rather than modern smart-home protocols, and it is increasingly hard to source and configure.

Option 1: Roll your own over a 455 kHz receiver

Because the real barrier is the 455 kHz carrier, a determined tinkerer can build a receiver around a 455 kHz IR sensor such as the TSOP7000, wire it to a Raspberry Pi or ESP32, decode the Beo4 protocol (open-source decoders like the ESP32 Beo4 library exist), and publish the presses to Home Assistant over MQTT. It works and is very flexible. The trade-offs: the TSOP7000 is discontinued and hard to find, and you build and maintain the whole thing yourself.

Option 2: A modern bridge (Lydbro Two)

Lydbro Two is a modern take on the Lintronic: a Bang & Olufsen IR eye that reads the 455 kHz signal from any B&O infrared remote and turns each command into a smart-home action. Instead of RS232 and relays, it talks to your smart home directly through a native, local Home Assistant integration, installable via HACS. MQTT and webhooks are available for other systems like Control4 and Crestron. It runs locally, is configured from a built-in web UI, and updates over the air.

What you can do with it

Use a Beo4, or any B&O infrared remote, as a smart-home controller
Map each button to any Home Assistant automation, scene, or device
Control lights, media players, the TV, blinds, and more
Bridge B&O remote presses to Control4, Crestron, and other systems via MQTT or webhooks

Which option is right for you?

You are comfortable sourcing a TSOP7000 and building on a Pi or ESP32: roll your own.
You want it to just work, with a native Home Assistant integration: Lydbro Two.
You already run a Lintronic and only need IR, RS232, or relay outputs: it still does that job.

About Lydbro Two

References & further reading

Lintronic TT455-RT-238 hardware manual
aanban/esp32_beo4 (open-source Beo4 IR decoder for the TSOP7000)
MQTT integration (Home Assistant docs)

We are an independent company and are not affiliated with, endorsed by, or connected to Bang & Olufsen or Lintronic. All product names, trademarks, and registered trademarks are the property of their respective owners.