/hand-gesture-arduino-led-control

Primary LanguagePythonMIT LicenseMIT

hand-gesture-arduino-led-control

Features

  • Real-time hand tracking using webcam
  • Detects when all fingers are raised
  • Sends command to Arduino via serial
  • Turns all LEDs ON when fingers are open, OFF otherwise

Python Side (Hand Tracker)

Dependencies

Install required libraries:

pip install -r requirements.txt

Run the Script

Make sure your Arduino is connected and update the COM port in main.py:

serial.port = "COM3"  # Replace with your actual COM port

Then run:

python src/main.py

This will open your webcam and start gesture detection.

Arduino Side

Hardware

  • Arduino UNO (or compatible)
  • 5 LEDs + 220Ω resistors
  • Jumper wires
  • Breadboard

Pins

Connect LEDs to:

  • D8, D9, D10, D11, D12

Upload Sketch

Open src/sketch.ino in the Arduino IDE and upload to your board.

Wiring Diagram

Circuit Diagram

Serial Communication

Hand Gesture Command Sent LED Action
All fingers raised '1' LEDs ON
Any finger down '0' LEDs OFF

How It Works

  • MediaPipe detects hand landmarks from webcam input
  • If all 5 fingers are raised, it sends '1' via serial
  • Arduino reads the serial and lights up all 5 LEDs
  • If any finger is down, it sends '0', turning off the LEDs

Project Structure

├── src/
│   ├── main.py          # Python script (hand tracker)
│   ├── sketch.ino       # Arduino sketch
│   └── assets/
│       └── circuit.png  # Wiring diagram
├── requirements.txt
└── README.md

Credits

Uses:

License

Licensed under the MIT License. You can use, modify, and share this freely with attribution.