A precise and elegant system for automated drawing using Arduino control.

• Modern Web UI: A sleek, user-friendly Electron application for easy control and visualization.
• High-Precision Movement: DC motors with encoders ensure accurate X/Y/Z-axis positioning.
• Interactive GUI: Built with Python and Tkinter for shape design and command execution.
• 3D-Printed Frame: Customizable modular structure for easy assembly.
• Automated Workflow: Converts digital designs into physical drawings via Arduino.

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⚠️ Note: The report mentions Arduino Mega and stepper motors, but the BOM and circuit diagram specify Arduino Uno and DC motors. Ensure consistency in your hardware setup.

1. Assemble the 3D-printed frame.
2. Mount the motors and attach the pen mechanism.
3. Wire components as per the circuit diagram.

# Clone the repository
git clone https://github.com/NacreousDawn596/Penplotter.git

nix-shell

python3 -m venv venv
source venv/bin/activate  # On Windows, use 'venv\Scripts\activate'
pip install -r requirements.txt
arduino-cli core install arduino:avr
arduino-cli lib install Stepper

install the imagemagick package as well if you wanna use the manual method, it's available in most package managers... or compile it from here.

The easiest way to use the Pen Plotter is via the bundled Electron application.

1. Download the latest PenPlotter-x.x.x.AppImage from the releases (or build it locally).
2. Make it executable:

   chmod +x PenPlotter-1.0.0.AppImage

3. Run it:

   ./PenPlotter-1.0.0.AppImage

If you want to build the application yourself:

1. Install Dependencies: Ensure you have npm, python3, and arduino-cli installed.

   # Install Python dependencies
   pip install -r webui/backend/requirements.txt

2. Build the App:

   cd webui/electron
   npm install
   npm run dist

   The output will be in webui/electron/dist.

python3 manual.py /path/to/image

Controls:

• Middle Click: Show/hide the image.
• Right Click: Draw connected polygons.
• Left Click: Draw a separate point and start a new polygon.
• Close Window: Saves the drawing.

python3 main.py -h  # Show help command, adjust the parameters as needed. almost every image needs its own parameters.

Example:

python3 main.py criam.jpg criam  # Convert 'criam.jpg' to a sketch and save the code to ./criam/criam.ino

Alternatively, use an online AI tool to convert complex images to sketches before processing with main.py.

Simply navigate to the folder where you saved your file.ino then:

arduino-cli board list

to show the available boards and finally upload using:

alias ards="sudo arduino-cli compile --fqbn <board, like arduino:avr:mega> ./ 
sudo arduino-cli upload -p <Port, like /dev/ttyACM0> --fqbn <board, like arduino:avr:mega> ./"

Alternatively you can use the ArduinoIDE

Examples of drawings: faces, cars, landscapes, etc....

• ✅ Add SVG file support for more complex designs.
• ✅ Implement wireless control (Bluetooth/Wi-Fi).
• ✅ Enhance precision for intricate patterns.
• ✅ Integrate with Raspberry Pi or ESP32 for advanced functionality.

Crafted with ❤️ by the PenPlotter Team

💡 CRIAM · LinkedIn Page