Shadow PDA – Personal Desktop Assistant

“Always by Your Side”

Shadow PDA is an AI-powered personal desktop assistant that combines conversational intelligence with real-time system automation. Built with Python, Django, and a modern web interface, it enables users to interact through voice or text and perform desktop operations hands-free. Designed with accessibility in mind, Shadow PDA especially benefits visually impaired or physically challenged users.

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🚀 Features

🔹 AI Chat Interaction

• Real-time conversational responses powered by OpenRouter’s GPT-based API.
• Supports both voice and text-based queries.

🔹 Voice-Controlled Automation

Shadow PDA can execute desktop-level tasks such as:

• Opening / closing applications
• Switching between apps
• Searching on Google, YouTube, Wikipedia
• Taking screenshots
• Adjusting system volume
• Setting reminders
• Checking internet speed
• System shutdown or restart

🔹 Speech Output

• Uses pyttsx3 & Web Speech API to speak responses aloud.
• Natural, smooth interaction experience.

🔹 Web Interface

• Clean UI built with HTML, CSS, JavaScript, Bootstrap
• Includes chatbox + microphone button for voice commands

🔹 Dual Modes

• Activate Shadow → Switches to automation mode
• Deactivate Shadow → Returns to normal AI chat mode
• “Daytime” and “Nighttime” fictional modes for personalization

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🏗️ System Architecture

Frontend

• HTML, CSS, JavaScript
• Bootstrap UI
• Web Speech API for voice input

Backend

• Django Framework (Python)
• Routes messages, manages AI interactions, controls automation logic

AI Model

• OpenRouter API (GPT-3.5)

Automation Layer

• Python libraries:

  • os
  • pyautogui
  • webbrowser

• Executes all system-level tasks

Database

• SQLite (default Django storage)

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🧩 How It Works

1. User interacts via chatbox or microphone.
2. Shadow PDA generates intelligent responses using GPT API.
3. For automation, user activates command mode: Say: “Activate Shadow”
4. Shadow PDA switches from text generation → automation mode.
5. Handles desktop tasks via Python automation layer.
6. Commands stop when user says: “Deactivate Shadow”

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🛠️ Technologies Used

Component	Technology
Frontend	HTML, CSS, JavaScript, Bootstrap
Backend	Django (Python)
Database	SQLite
AI Model	OpenRouter API (GPT-3.5)
Speech Engine	pyttsx3, Web Speech API
Automation	os, pyautogui, webbrowser

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📌 Future Enhancements

• User authorization & authentication
• Multi-language speech recognition
• IoT integration
• Offline AI model support

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🙌 Authors

Joel Amos Philip Department of Computer Science & Engineering College of Engineering Poonjar

Under the guidance of Rajesh K R