Out of sync with MicroPython API

[r1chardj0n3s]

This code is unfortunately no longer compatible with the MicroPython API. Notably "pyb" is called "machine" now, but also the I2C API is quite different.

[flashypepo]

based upon Jan Bednařík matrix8x8 driver and two commits from r1chardj0n3s, I got the 8*8 LED matrix (HT16K33 LED backpack from Adafruit) working i.e. it executes the examples game-of-live and test_features.

Configuration:
MicroPython v1.20.0 on 2023-04-26; TinyPICO with ESP32-PICO-D4
microcontroller: TinyPICO (UnexpectedMaker)
LED matrix: Adafruit HT16K33 LED Backpack
Note: the rotate() method was required!

Thanks Jan and Richard.
kind regards, Peter

[flashypepo]

Euh, one caveat: when the device is powered on (cold start), the LEDs of the matrix does not show. Reason: unknown (yet). Peter