MicroPython Forum (Archive)

I cross-posted to LVGL forums at this address https://forum.lvgl.io/t/esp32-and-lvgl-guru-meditation-error-after-reboot-if-network-initialized/4807/2 , and was able to solve the issue by re-making LVGL using ESP-IDF v4 instead of v3.3, and by adding the proper parameters to the make command, in orde...

Thanks for the reply. I figured it must be something to do with that, but couldn't still pinpoint the origin of the problem. As far as I know, the micropython wrapper for LVGL should be relatively stable and I still think I am doing something wrong, possibly not configuring the build properly. I ha...

One more thing to add is that the issue happens independently from how good the power supply to the esp is..

Hello! I am experiencing issues with the Micropython + LVGL firmware (compiled with all default settings) on an ESP32 Wroom chip. Things seem to go terribly wrong every time I try to instantiate a network.WLAN object. I am not able to debug any further, but I was able to reliably reproduce the error...

Just to update this original thread, I finally got the new display, *with* the touch driver chip soldered on, and connected it to the same SPI bus as the display (using a lower frequency), and everything works just perfectly :) LVGL seems like a really powerful tool to quickly build interfaces: I lo...

Divergentti wrote: ↑

Tue Jan 26, 2021 7:57 am

Reason is most likely Post of Finland

What are the chances.. I'm across the gulf, in Tallinn. Terve fellow micropythonist!

Most likely it is missing. Code you might be interested https://github.com/divergentti/airquality/tree/main/esp32/esp32-mhz19-ili9341-touchscreen Thanks for this pointer also. I have ordered a new display from AliExpress (unfortunately there aren't many for sale where I live and shipping from Amazo...

Wow. Missing chip indeed.
Thanks for pointing that out as I would have never figured it out.

I am trying to experiment with LVGL and an ILI9341 + touch display. So far I managed to compile and deploy Micropython+LVGL and get the display connected via VSPI to the ESP32, and get some demos running. I am amazed at the beauty of the results, using only few lines of python code. I am having trou...

Thank you Peter. Everything clear, and very helpful.