Electronics MCP Servers

Electronics MCP Servers

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

[PyPI version] [License: MIT] [Python 3.10+]

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 serversuvx --from electronics-mcp-servers resistor-decoderuvx --from electronics-mcp-servers capacitor-calcuvx --from electronics-mcp-servers gpio-reference

Test with pip install

# After pip install, test the CLIelectronics-mcp-servers --version
# Or test individual toolsresistor-decoder --helpcapacitor-calc --helpgpio-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 versionuvx --refresh electronics-mcp-servers
# Or specify the version explicitlyuvx --from electronics-mcp-servers==1.0.2 electronics-mcp-servers
# Check installed versionpip 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_bandsfrom servers.capacitor_calculator import calculate_rc_time_constantfrom servers.gpio_reference import get_pin_info
# Decode a resistorresult = decode_color_bands(["brown", "black", "red", "gold"])# Returns: {"resistance": 1000, "tolerance": 5, "formatted": "1kΩ ±5%"}
# Calculate RC time constanttau = calculate_rc_time_constant(10000, 100e-6)# Returns: {"tau": 1.0, "time_63pct": 1.0, "time_full": 5.0}
# Get ESP32 pin infopin = 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