IoT devices rely on diverse protocols to communicate efficiently. Here's a quick breakdown of popular ones:

📡 MQTT (Message Queuing Telemetry Transport)

  • Lightweight: Ideal for low-bandwidth, high-latency environments.
  • QoS Levels: Supports three Quality of Service levels for reliability.
  • Use Case: Common in smart home and industrial automation.
MQTT

🌐 CoAP (Constrained Application Protocol)

  • RESTful: Designed for constrained networks and devices.
  • Datagram-Based: Operates over UDP for low overhead.
  • Use Case: Suited for sensor networks and machine-to-machine (M2M) communication.
CoAP

📱 HTTP (Hypertext Transfer Protocol)

  • Ubiquitous: Widely used for web-based data exchange.
  • Stateless: Simple to implement but less efficient for real-time IoT.
  • Use Case: Best for applications requiring human-readable data.
HTTP

🌍 LoRaWAN

  • Long-Range: Enables communication over kilometers with low power.
  • Low Bandwidth: Optimized for battery-powered sensors.
  • Use Case: Perfect for smart cities, agriculture, and logistics.
LoRaWAN

For a deeper dive into IoT protocols, check our overview guide. 🌱