Mobile Trackpad

Turn your mobile device into a wireless trackpad for your computer. This application creates a web server that allows you to control your computer's mouse cursor using your phone or tablet's touchscreen.

Features

• Smooth cursor control with touch tracking
• Two-finger scrolling
• Three-finger swipe for Alt+Tab window switching
• Dedicated scroll bar for precise scrolling
• Zoom bar for quick Ctrl+/- zooming
• Tap to left-click
• Visual touch feedback
• Fullscreen mode support

Requirements

• Python 3.7+
• A mobile device with a modern web browser
• Computer and mobile device on the same network

Installation

1. Install the required Python packages using the requirements.txt file:

pip install -r requirements.txt

2. Download mobile_trackpad.py to your computer.

Usage

1. Run the server:

python mobile_trackpad.py

2. The server will display a URL (e.g., http://192.168.1.100:5000)

3. On your mobile device:

   • Connect to the same network as your computer
   • Open the provided URL in your web browser
   • (Optional) Enable fullscreen mode for better experience

Controls

Gesture	Action
Single finger move	Move cursor
Tap	Left click
Two-finger slide	Scroll vertically
Three-finger swipe	Switch windows (Alt+Tab)
Right scroll bar	Precise scrolling
Bottom zoom bar	Zoom in/out (Ctrl +/-)

Configuration

Key sensitivity settings can be adjusted in the JavaScript code:

const twoFingerScrollSensitivity = 0.3;
const mouseSensitivity = 3.5;
const scrollSensitivity = 1.0;

Technical Details

• Uses aiohttp's WebSocket implementation for real-time communication
• Implements touch event throttling for performance
• Provides visual feedback for touch interactions
• Auto-reconnects if connection is lost
• Uses pyautogui for mouse control and keyboard shortcuts

Troubleshooting

1. Connection Issues

   • Ensure both devices are on the same network
   • Check if firewall is blocking port 5000
   • Try using the IP address instead of localhost

2. Performance Issues

   • Close other browser tabs/applications
   • Reduce animation effects if needed
   • Check network latency

3. Touch Not Working

   • Enable touch events in your browser
   • Clear browser cache
   • Try a different browser

Security Notes

• The server accepts connections from any device on the network
• No authentication is implemented by default
• Use in trusted networks only

Limitations

• Cannot simulate right-click
• Zoom functionality limited to Ctrl+/- commands
• Requires continuous network connection
• Touch gestures may vary by device/browser

Contributing

Feel free to submit issues and enhancement requests!

License

This project is open source and available under the MIT License.