Awesome

CODESYS-ZIGBEE2MQTT

-Library for using zigbee2mqtt with codesys

-Library for easy use of https://github.com/Koenkk/zigbee2mqtt

-until now only some devices, but easy to extend

-take a look in the intigration example, how easy to use it.

-It uses the JSON library from here: https://github.com/stefandreyer/JSON-Library