The latest lv_micropython can be built for the 'M5CORE2'-board.
(I used ESP-IDF v4.0.2 on Ubuntu 20.04)

Stuff I tested successfully on my M5Core2:

• display with lvgl widgets
• touchscreen
• WLAN
• RTC
• SDCard (read)

Might be interesting for people searching pure Micropython + lvgl on the Core2.

@purpledread
I'm using VSCode with the PyMakr extension (see LeMaRiva's blog for install-instructions).
Nice IDE with integrated serial-console for REPL and up-/downloading of files.

But I guess any serial-console (i.E. PuTTY) should allow you to see error messages.
Also check micropython.org for instructions to get a REPL over the serial port.

@purpledread That link still works for me, but here it is uploaded to an alternative.

@favnec5
My workaround for this (known) problem:

1. during boot mount the sdcard and load files to ram
2. then unmout the sdcard
3. initialize the display

something like:

import uos
from machine import Pin, SDCard

sdcard = SDCard(slot=2, sck=Pin(18), miso=Pin(38), mosi=Pin(23),  cs=Pin(4), freq=40000000)
uos.mount(sdcard, '/sd')
...
uos.umount('/sd')
sdcard.deinit()

before initializing the display:

from ili9XXX import ili9341
lcd = ili9341(spihost=1, mosi=23, miso=38, clk=18, dc=15, cs=5, invert=True, rot=0xC0, width=320, height=240, rst=-1, power=-1, backlight=-1)

I'm loading weathericons to use with openweathermap that way.

@favnec5 said in Pure Micro Python without Ui-Flow on my M5Stack core2:

@dhed
hi Dhed, is it possible for you to share the last bin pure lv_micropython firmware for M5CORE ?
it's been several days i 'm trying to compile it but i'm a win64 user... it's hard for me.

Here's my compiled firmware: zippyshare-link.
Should be flashable with:

esptool.py --chip esp32 -p COM3 -b 460800 erase_flash
esptool.py -p COM3 -b 460800 --before default_reset --after hard_reset write_flash --flash_mode dio --flash_freq 80m --flash_size 16MB 0x8000 partition-table.bin 0x1000 bootloader.bin 0x10000 micropython.bin

(flashing works even under Windows with the ESP-IDF toolchain installed)

The latest lv_micropython can be built for the 'M5CORE2'-board.
(I used ESP-IDF v4.0.2 on Ubuntu 20.04)

Stuff I tested successfully on my M5Core2:

• display with lvgl widgets
• touchscreen
• WLAN
• RTC
• SDCard (read)

Might be interesting for people searching pure Micropython + lvgl on the Core2.