Docker-IOT: Arduino Sensor Data to Dockerized Node-RED Dashboard via MQTT

Welcome to the repository! Here you will find Arduino scripts designed to read data from various sensors and transmit this information to a Raspberry Pi using Bluetooth modules through serial communication. Subsequently, this data is processed and sent via MQTT to a Node-RED environment executed within Docker containers.

Contents

• Arduino Scripts: Optimized scripts for various sensors that will allow you to gather essential data.
• Python Script: A Python script that reads data left on the serial port by Bluetooth communication on the Raspberry Pi.
• Docker_compose: Docker container configuration with MQTT broker and Node-RED framework.

Components

• Arduino boards and corresponding sensors.
• Bluetooth module compatible with Arduino HC-05.
• Raspberry Pi 3B with Python and necessary libraries installed.

Schematic

For a visual representation of the system architecture, refer to the schematic diagram provided in the:

Testing

Node-RED Dashboard: The Node-RED dashboard was tested for responsiveness and real-time updates. MQTT Integration: MQTT communication was validated by subscribing to and publishing data between different components of the system. Node-red Arduino and Sensors: Conexion