Install lvgl micropython on thonny ide

[rickyed]

hello

I’m new to micropython world

i’m on thonny ide

is there a tutorial in video or by screenshot and the tools that must be downloaded to successfully compile lvgl for micropython.
i want to put it on esp32
but when i look at the lvgl doc on installing micropython for esp32. it’s really, really unclear to me.
can someone help me to understand

Thank you

[rickyed]

Re

so I re-read the documentation.

then I installed cygwin with the packages:
*mingw64-i8686-gcc-core
*mingw64-x86_64-gcc-core
*make
*python3

then I entered the command in the cygwin command window

$git clone https://github.com/lvgl/lv_micropython.git
then
cd lv_micropython
to go to the directory
then :
$git submodule update --init --recursive lib/lv_bindings

everything is OK

then i have to download the esp-idf

I entered:

$git clone -b v4.0.2 --recursive https://github.com/espressif/esp-idf.git

once downloaded I typed: cd esp-idf to go to the folder
I typed:
$ git checkout v4.2
$git submodule update --init --recursive

everything is going very well

cd esp-idf
and
./install.sh

and it doesn’t work

source export.sh
no more

or am I mistaken?

[amirgon]

I’m not sure you can install that on cygwin.
I’d recommend using Linux.

@rickyed

cd esp-idf
and
./install.sh

and it doesn’t work

Do you get some error message?

[rickyed]

Hello

it tells me that it does not recognize the commands and it installs nothing at all.
I have since gone back to the docs. and the more I read and the more I sink, I really don’t understand anything anymore. I don’t understand how are nesting esp-idf/micropython/ and lv_micropython

I am completely stuck. What I understand is that you have to be on ubuntu to compile because windows does not work.
but is it possible to have a step by step procedure?

thank you for all !!!

[amirgon]

@rickyed

I don’t understand how are nesting esp-idf/micropython/ and lv_micropython

• Micropython is Python for Microcontrollers. It can be built for different architectures (called “ports”).
• ESP-IDF is the BSP for ESP32 microcontroller family. It is used by the Micropython ESP32 port to build Micropython for ESP32.
• lv_micropython is a fork of Micropython that includes the LVGL library, and Python bindings for LVGL.

@rickyed

I am completely stuck. What I understand is that you have to be on ubuntu to compile because windows does not work.

Currently lv_micropython doesn’t officially support Windows. There’s a related open ticked.
The recommended development platform is Linux. If you only have a Windows machine, you can run Linux in a VM on Windows, or try your luck with WSL.

@rickyed

but is it possible to have a step by step procedure?

The lv_micropython README provides a step-by-step procedure, assuming you have some background with Micropython and ESP32.
If you don’t - I suggest you start with the basics: Try to build Micropython and use it on your microcontroller. Make sure you are able to build it, flash it and use the REPL. You can find more examples and guides for pure Micropython than lv_micropython.
Once you are successful with Micropython, switch to lv_micropython by following the build instructions in the README.

[rickyed]

hello

thank you, thank you, thank you very much for the answer!

so I’ve made some progress but it seems that there are still a few things that are wrong

attached the photo:
there are errors
and suddenly the ports are not created.

do you have to configure additional things on ubuntu?

thank you for all !!!

[amirgon]

• Missing ffi.h means libffi is not installed. (try sudo apt-get install libffi-dev)
• Missing SDL.h means SDL is not installed. (try sudo apt-get install libsdl2-dev)
• If you would like to use the unix port with SDL:
  • If you are using Window-11 you can use GUI apps natively: Run Linux GUI apps with WSL | Microsoft Learn
  • If you are using Windows-10, you’d need to set up X-Windows (for example, Setup X11 for Window Sub System Linux 2 for GUI | by ⚗ Kevin Summersill 🔋 | Medium)

[rickyed]

Hello !!!

for the unix port it worked wonderfully !

I followed this procedure to create the environment of esp-idf

What I don’t understand is that it gives me this error. then what i don’t understand is how to link esp-idf with port esp32 in lv_micropython
I thought I understood that it must be in relation to export.sh

Well I feel that we are not very far from getting there. on the other hand after I will have to look at all the configuration part with the drivers. In addition by chance I have a screen with an ili9488 driver and for the touch controller
XPT2046. I think there is no basic provision in lv_micropython?

thank you for everything

[amirgon]

@rickyed

What I don’t understand is that it gives me this error.

But it tells you exactly what the problem is! Python is missing.
Try something like: sudo apt update; sudo apt install python3

@rickyed

then what i don’t understand is how to link esp-idf with port esp32 in lv_micropython
I thought I understood that it must be in relation to export.sh

You should first run export.sh, which defines some environment variables that specify where ESP-IDF is installed.
Then when you run make it will check these environment variables and use ESP-IDF according to them.

@rickyed

In addition by chance I have a screen with an ili9488 driver and for the touch controller
XPT2046. I think there is no basic provision in lv_micropython?

lv_micropython already supports ili9488 and XPT2046 on ESP32.

See:

• lv_binding_micropython/driver/esp32/ili9XXX.py at master · lvgl/lv_binding_micropython · GitHub
• lv_binding_micropython/driver/esp32/modxpt2046.c at master · lvgl/lv_binding_micropython · GitHub
• lv_binding_micropython/driver/esp32/xpt2046.py at master · lvgl/lv_binding_micropython · GitHub

[rickyed]

hello

Great I managed to create the project with the esp32 port. So far I have arrived. I can move on.

a very very very big thank you for your patience!!!

thank you

[gabriele_ponte]

I use Arduino IDE 2.0 with Espressif system boards for Esp32, version 2.0 is very fast when compile, and better features compared with previous versions.
In this 2 projects you can see video and download source project (included also setup for LVGL 7.11 version):

Esp32 use with LVGL library...need a little example

I think this is my last post for this project which I hope will be of help to new users of this great graphics library. The novelties of this latest release are the possibility to edit small text files, line by line, for example an html file to be sent to a web server as in this example: or in this: In CMD01 and CMD02 I put an example of how to read a directory of a remote FTP server and how to download a file from it. To use these 2 commands you have to put the address of the remote serve…

A precision table clock with wind advisor

Ty for help Kisvegabor, i need try this options still. I made some changes: now the current day is also considered if the current time is less than or equal to the time considered to launch the alert. I introduced FTP to transfer files in or out of SPIFFS to the PC, using for example Total Commander on PC. In line 637 you can change username and password for connection with ftp: ftpSrv.begin (“Esp32”, “Esp32”); and obviously you have to set it the same on Total Commander, in addition to the…

Bye

[rickyed]

Hello

I looked at your projects, and it’s really very interesting all that we can do.

however I have a question. because I looked but all the documents I find are for functions in C++. I thought there was a document with the commands for microphyton. but I can’t find it.

is there this kind of document to learn how to use the graphic library

Thank you

[gabriele_ponte]

@rickyed

I looked but all the documents I find are for functions in C++. I thought there was a document with the commands for microphyton

Yes, i use Arduino Ide 2.0 and C++, is very good and fast now.
I think it is better if you deepen your knowledge of C ++ rather than a sub language

@rickyed

is there this kind of document to learn how to use the graphic library

in one of the 2 videos (it seems to me the first) there is also an image that shows the structure that I use in the programs.
Also in the first video you can also understand how to save a screenshot on SPIFFS

[TsXor]

It’s nonsense to force others to do something unless there is a proper reason, and “micropython is sub language” is really not a proper one.

See Micropython — LVGL documentation for a map, micropython API is auto generated!
Micropython — LVGL documentation