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mcp/harbor
Gemini CLI

Arduino MCP Server for Gemini CLI

io.github.hardware-mcp/arduino-mcp-server

Arduino MCP server for CLI setup, board detection, compile/upload, serial monitoring, and pin refs.

client:Gemini CLI transport:stdio runtime:npm

Install Arduino MCP Server in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "arduino-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "arduino-mcp-server"
      ],
      "env": {
        "ARDUINO_CLI_PATH": "<ARDUINO_CLI_PATH>",
        "ARDUINO_SKETCH_ROOT": "<ARDUINO_SKETCH_ROOT>"
      }
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

Arduino MCP Server in other clients

Arduino MCP Server MCP server