IoT Device Control Script

[dino65-dev]

Pull Request for PyVerse 💡

Requesting to submit a pull request to the PyVerse repository.

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Issue Title

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IoT Device Control Using MQTT and Python

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Info about the Related Issue

What's the goal of the project?
The aim of this project is to develop a Python-based application for controlling IoT devices using the MQTT protocol. It focuses on establishing secure, reliable communication between the application and IoT devices through an MQTT broker. The project incorporates advanced features such as TLS/SSL for secure data transmission, dynamic topic management for flexible device interaction, and robust error handling to ensure seamless operation. Additionally, it includes logging capabilities to monitor and troubleshoot the application's behavior. This setup is designed to facilitate two-way communication, allowing the application to send commands to IoT devices and receive responses, making it suitable for complex IoT environments.

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Name

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Dinmay Kumar Brahma

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GitHub ID

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dino65-dev

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Email ID

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[email protected]

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Identify Yourself

Mention in which program you are contributing (e.g., WoB, GSSOC, SSOC, SWOC).

• GSSOC-EXT 24

• CONTRIBUTOR

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Closes

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*Closes: #1042 *

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Describe the Add-ons or Changes You've Made

Give a clear description of what you have added or modified.

1. Secure Communication:

   • TLS/SSL: The script now uses TLS/SSL for secure communication with the MQTT broker. This is achieved by setting up the tls_set() method on the MQTT client, which ensures that data exchanged between the client and broker is encrypted.

2. Dynamic Topic Management:

   • The script allows for dynamic subscription to a response topic (response_topic) upon successful connection. This enables the client to listen for messages from the IoT device.

3. Enhanced Error Handling:

   • Connection Handling: The on_connect callback function checks the connection result code (rc) and logs whether the connection was successful or failed.
   • Publishing Errors: The script includes try-except blocks around the connection and publishing operations to catch and log any exceptions that occur, providing clear error messages for troubleshooting.

4. Logging:

   • The script uses the logging module to provide detailed logs for various events, such as successful connections, message receipt, and errors. This helps in monitoring the application's behavior and diagnosing issues.

5. Callback Functions:

   • on_connect: Handles connection events and subscribes to the response topic.
   • on_message: Processes incoming messages from the subscribed topic and logs them.
   • on_log: Provides additional logging for debugging purposes.

6. Loop Management:

   • The script uses client.loop_start() to handle network traffic and callbacks in a separate thread, allowing the script to remain responsive and continuously listen for incoming messages.

These enhancements make the script more robust, secure, and suitable for advanced IoT applications where secure communication and feedback from the device are necessary.

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Type of Change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, local variables)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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How Has This Been Tested?

Describe how your changes have been tested.
I have described my testing process in readme file.

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Checklist

Please confirm the following:

• My code follows the guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly wherever it was hard to understand.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have added things that prove my fix is effective or that my feature works.
• Any dependent changes have been merged and published in downstream modules.

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