library implementation of OPC UA
open62541 is an open source and free implementation of OPC UA (OPC Unified Architecture) written in the common subset of the C99 and C++98 languages. The library is usable with all major compilers and provides the necessary tools to implement dedicated OPC UA clients and servers, or to integrate OPC UA-based communication into existing applications.
Homepage: https://open62541.org/
Maintainer: Alexander Bluhm <bluhm@openbsd.org>