EasyMCP2221

Easy MCP2221 is a Python module to interface with Microchip MCP2221 and MCP2221A.

Connected to the USB port, this 14 pin chip part can provide a normal computer with the capabilities of a basic microcontroller.

MCP2221’s peripherals:

4 GPIO
3 channel ADC
DAC
I2C
UART
Clock Output
USB Wake-up via Interrupt Detection.

So you can practice the basics of digital electronics, microcontrollers, and robotics using nothing more than a regular computer, a breadboard, a few parts, and Python.

Quick start

Install:

$ pip install EasyMCP2221

First run:

>>> import EasyMCP2221
>>> mcp = EasyMCP2221.Device()
>>> print(mcp)
{
    "Chip settings": {
        "Power management options": "enabled",
        "USB PID": "0x00DD",
        "USB VID": "0x04D8",
        "USB requested number of mA": 100
    },
    "Factory Serial": "01234567",
    "GP settings": {},
    "USB Manufacturer": "Microchip Technology Inc.",
    "USB Product": "MCP2221 USB-I2C/UART Combo",
    "USB Serial": "0000000000"
}

GUI

EasyMCP2221 Workbench is a GUI to play with MCP2221 and MCP2221A chips based on EasyMCP2221 library.

https://github.com/electronicayciencia/EasyMCP2221-GUI

Documentation

Read the Install Guide, Examples and full API Reference here: https://easymcp2221.readthedocs.io/

Illustrative blog post with examples, pictures and schematics (spanish): El integrado MCP2221(A)

Author

Reinoso Guzman (https://www.electronicayciencia.com).

Initially based on PyMCP2221A library by Yuta Kitagami (https://github.com/nonNoise/PyMCP2221A).

License

The MIT License (MIT).

License
- OSI Approved :: MIT License
Operating System
- OS Independent
Programming Language
- Python :: 3

Metadata

License
- OSI Approved :: MIT License
Operating System
- OS Independent
Programming Language
- Python :: 3

Release files for EasyMCP2221 1.8.4

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for EasyMCP2221 1.8.4
File	Size	Uploaded
easymcp2221-1.8.4.tar.gz	30.8 kB	Sep 19, 2025	Details

Built distribution (wheel)

Table of built distributions (wheels) for EasyMCP2221 1.8.4
File	Interpreter	ABI	Platform	Reset
easymcp2221-1.8.4-py3-none-any.whl 33.7 kB Sep 19, 2025	Python 3	none	any	Details

Total release size: 64.5 kB

Release files / easymcp2221-1.8.4.tar.gz

Download URL	easymcp2221-1.8.4.tar.gz
Size	30.8 kB
Tags	Source
SHA-256 checksum How to use checksums	`361488c548322eeb0a887984826313cd2b2c3ff004acfea4ba1c41f753677ce9`
BLAKE2b-256 checksum How to use checksums	`7b2257bf74b2cd1d10f60f457f673ed47a29f38fc3cd237b5f3e717896e3ca2d`
Upload date	Sep 19, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.9.23`

Release files / easymcp2221-1.8.4-py3-none-any.whl

Download URL	easymcp2221-1.8.4-py3-none-any.whl
Size	33.7 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`9e0a274f1f30defd0ad9a30695fd2f4191c398378ee3f645735c4d015aecf2bb`
BLAKE2b-256 checksum How to use checksums	`7a058017e2c4a004cccff910409073be786e21f0dc1e8b0f37a9de750039df79`
Upload date	Sep 19, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.2.0 CPython/3.9.23`