What is the use of MQTT in C++?

In C++, MQTT (Message Queuing Telemetry Transport) is a lightweight communication protocol commonly used for communication between IoT devices. Based on a publish/subscribe model, MQTT enables real-time communication and data transfer between devices.

In C++, MQTT can be used to achieve the following functionalities:

1. Real-time data transfer: Devices can send real-time data to other devices or servers using the MQTT protocol.
2. Remote control: Using the MQTT protocol to control the operations of other devices, such as remote switch control, remote upgrades, etc.
3. Data collection and monitoring: The data collected by devices can be sent to the server via the MQTT protocol to achieve device monitoring and analysis.
4. Facilitate communication between devices: Multiple devices can communicate with each other using the MQTT protocol, enabling collaboration and data exchange between devices.

In general, using MQTT in C++ enables real-time communication and data transfer between devices, aiding in the development of IoT devices and systems.