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.
3 channel ADC
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.
Disclaimer: Some examples in this documentation show bare connections from your USB port to a breadboard. Most USB port controllers are protected against short-circuit between power and/or data lines, but some are not. I am not responsible for any damage you may cause to your computer. To be safe, always use an isolated powered USB hub for experimentation.