Electronics MCP Servers

<!- - mcp-name: io.github.wedsamuel1230/electronic-mcp-server - ->

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:

# # Test with uvx (recommended for MCP clients)

#  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.

# Links

• GitHub Repository
• PyPI Package
• MCP Registry