About Us
KNX CERTIFIED PROTOCOL STACK & FRAMEWORKDOWNLOAD FREE · BUILD TODAY · PAY WHEN YOU SHIP
Kbox-UniStack is an open KNX development platform — a platform-independent protocol stack and framework you can drop onto STM32 or ESP, on HAL or bare-metal.
It is more than a protocol implementation. Alongside a complete KNX stack — link, transport, network and application layers, cEMI and raw TP frame handling, and type-safe DPT encode/decode — it ships a framework of ready-to-use building blocks: UART and I2C drivers, Button, Watchdog, Flash and LED classes. You build your product, not the plumbing.
KNX Secure is built in, and the footprint is tuned for constrained flash and RAM, so it runs comfortably even on small devices and is ready for KNX certification when you are.
Our model is simple and transparent: download free and start building today. You pay nothing until your product goes commercial — the stack license is €10,000, plus €1,000 per OEM customer, and these prices are guaranteed for life. Comparable licenses cost up to €30,000 elsewhere, and there you pay before you even begin.
Want to talk licensing or a specific platform? Get in touch.