MQTT Keep alive and client takeover
Keep alive ensures that the connection between the broker and the client is always open and that the broker and the client is aware of[…]
IoT Protocols
Last Will and Testament Feature
Last will and testament feature enables you to do error detection for mqtt clients. So, basically you get a notification[…]
Retained Messages in MQTT
A retained message is a last known good value persisted by the broker for a topic so this means the last message which was sent by any[…]
Persistence Session & Message Queueing in MQTT
A persistent session the broker remembers the client. So, if you go offline for any reason the broker remembers your state[…]
Quality of Service Level in MQTT
The guarantees for sending and receiving messages between these participants and MQTT knows three different quality of service levels[…]