Easy MCP2221

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).