KNXnetIP has three main components for translating messages between the KNXnet/IP wire protocol and Elixir datatypes

Encoding and decoding of KNX datapoints

Encoding and decoding of frame structures defined in the KNXnet/IP specification

Encoding and decoding of KNX telegram structures in cEMI format, as used in KNXnet/IP

A behaviour module for implementing KNXnet/IP tunnel clients