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  • vindar's Avatar
    09-23-2022, 03:27 PM
    I just updated the example in the library to work with LVGL's latest version (the main branch on github). I just tested it from a freshly installed Windows 10 (64 bits) machine and followed the steps: Installed...
    39 replies | 11903 view(s)
  • vindar's Avatar
    09-23-2022, 09:24 AM
    Ok, I think I see the problem: the music player demo fonts are not loaded by default... Edit lv_conf.h located at the root of the arduino /library folder (the same file you already edited) and change the define at...
    39 replies | 11903 view(s)
  • vindar's Avatar
    09-23-2022, 08:59 AM
    Hi, I am the author of the ILI9341_T4 library. Can you tell me more about the problem you encounter with the LVGL examples ? Did you follow the steps described on the examples to install LVGL and connect the screen...
    39 replies | 11903 view(s)
  • vindar's Avatar
    09-23-2022, 08:10 AM
    Hi, I think the problem is that a box/region is defined with the constructor iBox2(minx, maxx, miny, maxy) and not iBox2(minx, maxx, lx, ly) as you can check in Box2.h around line 120. So I believe you should write...
    48 replies | 4441 view(s)
  • vindar's Avatar
    09-23-2022, 06:24 AM
    Hi, I have some examples which shows how to combine LVGL with my ILI9341_T4 library. In particular, there are some instructions in this example or this one on how to install/use LVGL Hopefully, it should not be...
    39 replies | 11903 view(s)
  • vindar's Avatar
    09-01-2022, 04:18 PM
    Hi, I do not have much to contribute here but, as a last resort, you can always perform a dirty const_cast<> to cast away the constness or your calling method in order to call a non-const method from the driver......
    5 replies | 140 view(s)
  • vindar's Avatar
    08-04-2022, 08:02 AM
    The problems I see with simply replacing drawPixel() by drawSpot() are: 1. Each pixel will be written about r times (for a line of thickness r) so it will be quite inefficient. 2. Doing so will mess with...
    48 replies | 4441 view(s)
  • vindar's Avatar
    08-04-2022, 07:48 AM
    Very nice ! Drawing thick curves is challenging and I honestly do not know how to achieve in an efficient manner... However, it should not be difficult to create anti-aliased versions of the spline/bezier methods...
    48 replies | 4441 view(s)
  • vindar's Avatar
    07-30-2022, 12:26 AM
    Hi, Done :) I finally added methods for drawing Bezier curves... The declarations (with the associated docstrings) can be found around line 1350 in Image.h. More precisely, the new methods are: ...
    48 replies | 4441 view(s)
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About vindar

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About vindar
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Maths, Computer science, electronics etc...
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mathematician

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LittleVGL on Teensy 09-23-2022 03:27 PM
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10-08-2016