RP2 Pico: 'module' object has no attribute 'disp_drv_t'

Micropython
17

Hi!

  1. There seems to be a bug in MicroPython or LVGL, that soft-reset does not clear everything. I started to use mpremote reset after every file upload.
  2. Increasing text size => change font.
    In LVGL we have the standard binary font engine, and an optional tinyttf engine. In MicroPython binding the tinyttf is disabled.

Read more about font loading: Fonts — LVGL documentation

File system drivers needs to be registered to load dynamically fonts.
Copy fs_driver.py file to Pico.

Example of loading font:

font = lv.binfont_create("A:KeepCalmMedium-32.font")
label2 = lv.label(screen)
label2.align(lv.ALIGN.TOP_MID, 0, 10)
label2.set_style_text_color(lv.color_black(), 0)
label2.set_style_text_font(font, 0)
label2.set_text("Hello World!")

(the full example: Raspberry Pi Pico W with ILI9341 display - LVGL v9 example · GitHub )

Convert TTF font to LVGL binary font: