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Electronics MCP Servers

Official registry Other

14 electronics tools: resistor decoder, capacitor calculator, GPIO reference for ESP32/Arduino/STM32

Source code Documentation

What can you do with Electronics MCP Servers?

  • decode_resistor_color_bands: Convert color bands to resistance value
  • encode_resistor_value: Convert resistance to color bands
  • find_standard_resistor: Find nearest E12/E24/E96 series value

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package electronics-mcp-servers
Claude Code 
claude mcp add electronics-mcp-servers -- uvx electronics-mcp-servers==1.0.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "electronics-mcp-servers": {
            "command": "uvx",
            "args": [
                "electronics-mcp-servers==1.0.2"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Electronics MCP Servers
  2. Installation
  3. Testing & Verification
  4. Features
  5. Supported Boards
  6. Usage
  7. Requirements
  8. License
  9. Links

Electronics MCP Servers

A comprehensive Model Context Protocol (MCP) server providing 14 electronics engineering tools across 3 domains.

Installation

pip install electronics-mcp-servers

Testing & Verification

After installation, verify the package is working:

# Alternative: Test individual servers
uvx --from electronics-mcp-servers resistor-decoder
uvx --from electronics-mcp-servers capacitor-calc
uvx --from electronics-mcp-servers gpio-reference
Test with pip install
# After pip install, test the CLI
electronics-mcp-servers --version

# Or test individual tools
resistor-decoder --help
capacitor-calc --help
gpio-reference --help
Naming Clarification

This project uses different naming conventions in different contexts:

  • MCP Registry ID: io.github.wedsamuel1230/electronic-mcp-server (singular)
  • PyPI Package: electronics-mcp-servers (plural)
  • CLI Executables: electronics-mcp-servers, resistor-decoder, capacitor-calc, gpio-reference

When using uvx, always use the PyPI package name (electronics-mcp-servers).

Troubleshooting

Problem: uvx electronics-mcp-servers shows "executable not provided" error

Solution: The main electronics-mcp-servers executable was added in version 1.0.2. Make sure you have the latest version:

# Force uvx to fetch the latest version
uvx --refresh electronics-mcp-servers

# Or specify the version explicitly
uvx --from electronics-mcp-servers==1.0.2 electronics-mcp-servers

# Check installed version
pip index versions electronics-mcp-servers

If the error persists, PyPI may still be serving version 1.0.1. Wait a few minutes and try again.

Features

🎨 Resistor Decoder (3 tools)
  • decode_resistor_color_bands: Convert color bands to resistance value
  • encode_resistor_value: Convert resistance to color bands
  • find_standard_resistor: Find nearest E12/E24/E96 series value
⚡ Capacitor Calculator (4 tools)
  • calculate_capacitive_reactance: Frequency-dependent impedance
  • calculate_rc_time_constant: RC circuit time calculations
  • calculate_resonant_frequency: LC tank resonance
  • suggest_capacitor_for_filter: Filter design recommendations
📌 GPIO Pin Reference (7 tools)
  • get_pin_info: Detailed pin specifications (ESP32/Arduino/STM32)
  • find_pwm_pins: PWM-capable pin discovery
  • find_adc_pins: ADC channel mapping
  • find_i2c_pins: I2C bus pins
  • find_spi_pins: SPI bus pins
  • check_pin_conflict: Multi-pin conflict detection
  • generate_pin_diagram_ascii: Visual pinout diagrams

Supported Boards

  • ESP32 DevKitC
  • Arduino UNO R3
  • STM32F103C8T6 (Blue Pill)

Usage

As an MCP Server

Add to your MCP client configuration (e.g., Claude Desktop):

{
  "mcpServers": {
    "electronics": {
      "command": "python",
      "args": ["-m", "servers"]
    }
  }
}

Or with uvx:

{
  "mcpServers": {
    "electronics": {
      "command": "uvx",
      "args": ["electronics-mcp-servers"]
    }
  }
}
Direct Python Usage
from servers.resistor_decoder import decode_color_bands
from servers.capacitor_calculator import calculate_rc_time_constant
from servers.gpio_reference import get_pin_info

# Decode a resistor
result = decode_color_bands(["brown", "black", "red", "gold"])
# Returns: {"resistance": 1000, "tolerance": 5, "formatted": "1kΩ ±5%"}

# Calculate RC time constant
tau = calculate_rc_time_constant(10000, 100e-6)
# Returns: {"tau": 1.0, "time_63pct": 1.0, "time_full": 5.0}

# Get ESP32 pin info
pin = get_pin_info("ESP32", 32)
# Returns detailed pin capabilities

Requirements

  • Python 3.10+
  • FastMCP (mcp[cli]>=1.1.0)

License

MIT License - Copyright (c) 2026 Samuel F.

Frequently asked questions

What is Electronics MCP Servers?

14 electronics tools: resistor decoder, capacitor calculator, GPIO reference for ESP32/Arduino/STM32

How do I install Electronics MCP Servers?

It runs on your machine. In Claude Code: claude mcp add electronics-mcp-servers -- uvx electronics-mcp-servers==1.0.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Electronics MCP Servers need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Electronics MCP Servers open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Electronics MCP Servers?

It is published by wedsamuel1230. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.