Cascoda and KNX

Cascoda joined KNX (KNX) in 2021, and we were since contracted to develop the KNX IoT Point API open-source software stack. The company currently holds the following position in KNX:

Member of the Technical Board
Member of the KNX Steering Group (KSG): KNX IoT Class

KNX IoT Point API Overview

KNX is an international standard (ISO/IEC 14543, EN 50090) for commercial and domestic building automation. KNX IoT Point API is the new transport medium of KNX. This new transport medium is fully compatible with existing KNX technology, KNX/TP, KNX/RF and KNXnet/IP.

KNX supports an open source stack that conforms to the IoT Point API specification, available at here. You can subscribe to updates regarding the IoT Point API open source stack here.

Cascoda has already ported the KNX IoT Point API stack to its Thread-based Chili2 module, and has created a full KNX IoT Point API development kit and associated Thread Border Router.

Cascoda® & KNX®

Pioneer of KNX IoT Point API &
author of the open-source implementation

Supports IPv6
Link layer agnostic (Thread, Wi-Fi, Ethernet etc.)
State-of-the-art Security
OSCORE encrypts messages between endpoints in the presence of routers and proxies
IoT Router
An IoT Router (Gateway) to communicate between KNX Classic & KNX IoT Point API
Guaranteed interoperability

The same set of Functional Blocks as KNX classic
The same communication model as KNX classic

Open Source

Open Source Implementation

Works with KNX tooling

KNX IoT Point API has been designed for ETS Integration, allowing installers to use KNX IoT Point API with minimal need for additional training.

Below is an example of ETS being used to configure KNX Iot Point API devices (right-click to show controls).

State-of-the-art security

Many IoT protocols use DTLS encryption between endpoints, which need to be un-encrypted and re-encrypted in the presence of intermediaries such as proxies. In addition, DTLS cannot encrypt multicast messages. This adds points of vulnerability.

KNX IoT Point API uses Object Security for Constrained RESTful Environments (OSCORE) to encrypt all types of messages end-to-end between endpoints, even in the presence of intermediaries such as proxies.