What are the different types of communication protocols used in IoT applications?
There are several communication protocols used in IoT applications, including MQTT, HTTP/HTTPS, CoAP, AMQP, and WebSocket. These protocols enable devices and systems to exchange data, commands, and notifications in an efficient and secure manner. MQTT is a lightweight and publish-subscribe-based protocol widely used in IoT for its low bandwidth requirements and reliability. HTTP and HTTPS protocols are commonly used for web-based communication, providing compatibility with existing infrastructure. CoAP is a lightweight UDP-based protocol designed for resource-constrained devices in low-power, lossy networks. AMQP is a messaging protocol that enables reliable and efficient communication between devices and applications. WebSocket is a bidirectional protocol that allows full-duplex communication over a single TCP connection.