IoT in practice: MQTT

Learn the essentials of MQTT protocol and build connected device applications! This course guides you through the process of enabling seamless communication between your devices using MQTT.

We'll start with a comprehensive overview of the MQTT protocol, exploring its core principles and understanding the role of an MQTT broker.

Next, we'll dive into practical implementation. You'll download and install Mosquitto, a widely used MQTT broker, on Windows. We'll cover configuration for both local machine use and network setups.

Then, we'll get hands-on with ESP32, a popular microcontroller. You'll write code to connect to a Mosquitto broker over WiFi and test its functionality. We'll then extend this to a Raspberry Pi running Mosquitto, connecting your ESP32 devices to a local network MQTT setup.

Master the Mosquitto API by developing a client that can be easily integrated into your projects.

Finally, we'll explore Amazon Web Services (AWS) IoT Core, a leading cloud platform for the Internet of Things (IoT). You'll learn how to connect your devices, create necessary certificates and policies, and securely manage your connected devices. We'll adapt your ESP32 program to work with AWS IoT Core and discover how to apply a single certificate and policy to multiple devices for efficient management.

This course provides a practical, step-by-step approach to building robust and scalable IoT solutions using MQTT and cloud technologies.