* **board** - breakout-specific pin identities
* **microcontroller** - chip-specific pin identities
+* **analogio** - analog input/output pins, using pin identities from board+microcontroller packages
* **digitalio** - digital input/output pins, using pin identities from board+microcontroller packages
* **bitbangio** - software-driven interfaces for I2C, SPI
* **busio** - hardware-driven interfaces for I2C, SPI, UART
=============
The Micropython compatibility layers described above are intended to provide a CircuitPython-like API for devices which
-are running Micropython. Since corresponding packages should be built-in to any standard
+are running CPython or Micropython. Since corresponding packages should be built-in to any standard
CircuitPython image, they have no value on a device already running CircuitPython and would likely conflict in unhappy ways.
The test suites in the test/src folder under **testing.universal** are by design