Arduino
Enables interaction with Arduino development through arduino-cli, allowing sketch management, code compilation and uploading, library and board operations, serial monitoring, and AI-powered circuit diagram generation using WireViz.
What is Arduino?
Arduino is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enables interaction with arduino development through arduino-cli, allowing sketch management, code compilation and uploading, library and board operations, serial monitoring, and ai-powered circuit di...
Enables interaction with Arduino development through arduino-cli, allowing sketch management, code compilation and uploading, library and board operations, serial monitoring, and AI-powered circuit diagram generation using WireViz.
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Enables interaction with Arduino development through arduino
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx mcp-arduinoConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Arduino
MCP Arduino Server bridges AI assistants with the Arduino development ecosystem via arduino-cli, enabling natural-language sketch creation, compilation, and uploading, library and board management, serial port monitoring, and AI-powered circuit diagram generation using WireViz — all from within MCP-compatible clients like Claude Desktop.
Prerequisites
- Python 3.10 or later installed
- arduino-cli installed and available on PATH (https://arduino.github.io/arduino-cli/)
- An MCP-compatible client such as Claude Desktop
- Optional: WireViz installed for AI circuit diagram generation
- Optional: OpenAI or OpenRouter API key for AI-powered diagram generation
Install arduino-cli
Install the Arduino CLI tool which the MCP server uses to manage boards, libraries, and sketch compilation.
# macOS with Homebrew
brew install arduino-cli
# Linux / Windows (curl installer)
curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | sh
# Verify installation
arduino-cli versionInstall the MCP Arduino server from PyPI
Install the mcp-arduino-server package using pip.
pip install mcp-arduino-serverConfigure Claude Desktop
Add the MCP Arduino server to your claude_desktop_config.json. Supply optional environment variables for the arduino-cli path, sketch directory, and AI diagram generation keys.
{
"mcpServers": {
"mcp-arduino": {
"command": "mcp-arduino-server",
"args": [],
"env": {
"ARDUINO_CLI_PATH": "arduino-cli",
"MCP_SKETCH_DIR": "/Users/yourname/Documents/Arduino_MCP_Sketches",
"LOG_LEVEL": "INFO",
"OPENAI_API_KEY": "sk-your-key-here"
}
}
}
}Install board cores and libraries via Claude
Once connected, ask Claude to install the board core for your Arduino board and any libraries needed for your project.
Connect your Arduino and start developing
Plug in your Arduino board via USB, ask Claude to list available boards and ports, then create and upload sketches through natural-language commands.
Arduino Examples
Client configuration
claude_desktop_config.json entry for the MCP Arduino server installed via pip, with OpenAI key for circuit diagram generation.
{
"mcpServers": {
"mcp-arduino": {
"command": "mcp-arduino-server",
"args": [],
"env": {
"ARDUINO_CLI_PATH": "arduino-cli",
"MCP_SKETCH_DIR": "/Users/yourname/Documents/Arduino_MCP_Sketches",
"LOG_LEVEL": "INFO",
"OPENAI_API_KEY": "sk-your-openai-key"
}
}
}
}Prompts to try
Example natural-language prompts to use with the MCP Arduino server in Claude Desktop.
- "Create a new Arduino sketch that blinks the onboard LED every 500ms and upload it to my Uno on /dev/cu.usbmodem14101"
- "Search for and install the Adafruit NeoPixel library"
- "List all connected Arduino boards and their port names"
- "Read the last 50 lines from the serial monitor on /dev/cu.usbmodem14101 at 9600 baud"
- "Generate a circuit diagram for an Arduino Uno connected to a DHT22 temperature sensor and an I2C LCD display"
- "Verify my sketch compiles correctly for the Arduino Mega 2560 board"Troubleshooting Arduino
arduino-cli not found when the server starts
Ensure arduino-cli is installed and on your system PATH. Set ARDUINO_CLI_PATH to the full path of the binary (e.g., /usr/local/bin/arduino-cli) in the env block of your config if the default PATH lookup fails.
Sketch upload fails with 'device not found' error
Verify your Arduino is connected via USB and the correct port is specified. Use the list_boards tool to discover available ports. On macOS, the port is typically /dev/cu.usbmodem* and on Linux /dev/ttyACM0 or /dev/ttyUSB0.
Circuit diagram generation fails
Ensure WireViz is installed (pip install wireviz) and the WIREVIZ_PATH environment variable points to the wireviz binary. Also confirm OPENAI_API_KEY or OPENROUTER_API_KEY is set correctly for the AI description-to-diagram step.
Frequently Asked Questions about Arduino
What is Arduino?
Arduino is a Model Context Protocol (MCP) server that enables interaction with arduino development through arduino-cli, allowing sketch management, code compilation and uploading, library and board operations, serial monitoring, and ai-powered circuit diagram generation using wireviz. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Arduino?
Follow the installation instructions on the Arduino GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Arduino?
Arduino works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Arduino free to use?
Yes, Arduino is open source and available under the NOASSERTION license. You can use it freely in both personal and commercial projects.
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Quick Config Preview
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