Firmware & software

Open source firmware and tools for busware hardware — all public on GitHub ↗.

ESP32 firmware

Current firmware for the ESP32-based sticks and for off-the-shelf boards.

Turns a stock ESP32-C6 into a Zigbee coordinator speaking the ZBOSS NCP protocol.

A complete Thread border router on an ESP32-C6 stick — Home Assistant add-on or plain Docker.

KNX/IP tunnel for the TUL, built on the OpenKNX stack — no separate knxd needed.

Makes the TUL an MCP server an agent can commission KNX devices through — addresses, tables and parameters, without ETS.

Radio firmware — details in the repository.

The firmware behind the classic sub-GHz sticks, still maintained.

Firmware for the classic CUL family, covering the sub-GHz radio protocols.

The culfw variant for the ARM-based CUL devices.

Web flasher for the CUL family.

Most ESP32 devices can be flashed straight from the browser. The live manifests are at install.busware.de ↗.