KNX IoT defines a new transport medium for KNX, based on Internet Protocol version 6 (IPv6). The KNX Association contracted Cascoda to develop the KNX IoT open-source software stack. The software stack has been designed to work with the robust, tried and tested Thread Mesh LPWAN wireless standard. This has been extended with banking-level security and all that is required to be a perfect product market fit for KNX users.