Which one is right for your project? 

MQTT :

• Architecture :
  -Publisher /Subscriber model.
  -Centralized broker handles message routing.
  -Suited for cloud-based IoT platforms.
• Key Features :
  -Easy to implement and configure.
  -Relies on external security layers like SSL/TLS.
  -Best for small, frequent updates.
• Use Cases :
  -Remote monitoring.
  -IoT sensor data collection.
  -Real-time alerts in low-bandwidth environments.

𝗢𝗣𝗖 𝗨𝗔 :

• Architecture :
  -Server/Client model.
  -Data modeling and structured information.
  -Often deployed in on-premise industrial environments for high reliability.
• Key Features :
  -Requires more setup but offers advanced functionalities.
  -Strong built-in security (encryption, authentication).
  -Suited for structured, contextualized data.
• Use Cases :
  -Industrial automation.
  -Machine-to-machine communication.
  -Integration with SCADA systems.