LetsMakeRobot

MicroPython-ST7735 (STM32F4) – Работает.
Библиотека вот отсюда. https://github.com/boochow/MicroPython-ST7735
Немного поправил SPI.

• LED – 3.3V
• VCC – 3.3V
• SCK – PA5
• SDA – PA7
• A0 – PA3
• RESET – PB10
• CS – PA4

self.dc = pyb.Pin(pyb.Pin.cpu.A3, pyb.Pin.OUT, pyb.Pin.PULL_DOWN)
self.reset = pyb.Pin(pyb.Pin.cpu.B10, pyb.Pin.OUT, pyb.Pin.PULL_DOWN)
self.cs = pyb.Pin(pyb.Pin.cpu.A4, pyb.Pin.OUT, pyb.Pin.PULL_DOWN)

spi = SPI(1, SPI.MASTER, baudrate=20000000, polarity=0, phase=0)