A lightweight, low-latency Arduino HID mouse controller with automatic Python discovery via RawHID communication.

• Auto-Discovery: Python automatically finds and connects to Arduino via HID enumeration
• Ultra-Low Latency: Fire-and-forget commands with no response overhead
• Complete Control: Mouse movement, left clicks, and scroll wheel support

1. Hardware: Arduino Leonardo/Micro/Pro Micro (32u4-based)
2. Install Library: HID-Project library in Arduino IDE
3. Upload: arduino_mouse_controller.ino to your Arduino
4. Install: pip install hidapi
5. Run: python mouse_controller.py

mouse = ArduinoMouseController()
mouse.move(x, y)        # Relative movement
mouse.click()           # Single left click  
mouse.click_down()      # Press and hold
mouse.click_up()        # Release click
mouse.wheel(delta)      # Scroll wheel

Thanks Antrophic + Claude Code Sonnet 4