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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: Schematic

Testing

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