This project initially started from backporting of http://codesys-mqtt-library.sourceforge.net/ version 3.5.0.0.
This Client follows MQTT Specifications v3.1.1.
The only dependencies are Standard, SysLibSockets and SysLibMem libraries.
The following MQTT features are supported:
- CONNECT (incl. randomized or defined ClientId, User/Password authentication (max-length: 80), Last Will QoS 0, auto. reconnection) / DISCONNECT
- Keep Alive (PINGREQ / PINGRESP)
- PUBLISH QoS 0 (incl. Retain, topic max-length: 80)
- SUBSCRIBE QoS 0 (SUBACK) / UNSUBSCRIBE (UNSUBACK)