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Joel Bodenmann

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About Joel Bodenmann

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    µGFX Developer

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  1. Welcome to the µGFX community & welcome for sharing your workaround, @Matteo Vigni!
  2. Hello & welcome to the µGFX community! The Zephyr port definitely needs a port to v2.9 to cover for the problem you listed (mainly the type updates) and making it therefore future proof for µGFX v3.0. We would greatly appreciate it if you could provide an updated version of the Zephyr port The Zephyr port was provided by the community member @nathan.loretan and I think µGFX 2.7 or 2.8 was the latest release at that point. However, porting to the current v2.9 version should be very easy as not much changed on µGFX's side (see changelogs). The board files are completely indepe
  3. If the memory of the image you're passing is correct then the following two cases seem the most likely: Your GDISP driver / display controller / display module setup has an issue. Perform tests as explained in my previous post to check. There's an issue in the PNG decoder. You can simply test another PNG image to see whether you have the same issue.
  4. Unfortunately nothing comes to mind. Things you can do to proceed: Try to display the same PNG file in an µGFX application you compile as a native desktop application (Windows, Linux, Mac OS...). If that works without any problems there's a good chance that the image you're loading into memory is corrupted at which point you'd need to revisit your USERFS implementation. The PNG decoder is in general known to work although it is not used as often due to large memory requirements for the decompression algorithm. Before all of this it might be worth confirming that your display driver i
  5. It's a bit difficult to judge based on the image with the angle & blury-ness but it looks like there's an issue in the setup of the display controller scanlines. The ili9341 display controller families are known to have various issues such as mis-matching silicon revisions and suppliers simply shipping a slightly different chip. This usually results in incompatible initialization routines. Check out the GDISP driver file (inside something like /src/drivers/gdisp/ili9341/) and check the initialization routine. Usually the manufacturer and/or supplier of a display module will provide yo
  6. Hello & welcome to the µGFX community. Please excuse the inconveniences you experienced. µGFX is very much alive and active. There has simply been an error in the automatic ordering system. All of your orders were received and by now you should have received a manual response to your purchase inquiry. Please do not hesitate to contact us again should you still not have received anything.
  7. I've never heard of anyone writing a µGFX GDISP driver for the NT35510 driver. However, writing a driver is very easy! You can find the corresponding documentation here: https://wiki.ugfx.io/index.php/Display_Driver_Model You can find examples in form of dozens of existing drivers in the µGFX library directory under /drivers/gdisp Furthermore, we're happy to help wherever we can! Just ask if you have any questions.
  8. The imagebox should automatically redraw when necessary. The only thing you have to make sure is that the image remains opened. The imagebox widget will simply clear the area if the assigned image is not opened (i.e. "nothing" will be rendered).
  9. We're happy to help where we can - don't hesitate to ask on the forum. I assume you're referring to the attachment of a few posts above yours? I had no issues downloading it. I've re-attached it to this post. Let me know if the issue persists.ArduinoIDE_ESP32_ILI9341.zip
  10. That should definitely go into a separate topic :)
  11. The µGFX library is actively maintained. There is currently no release date for µGFX v3 as we want to put our best efforts into it. The development repository of v3 is not public hence there's very little publicly visible efforts. µGFX v2.9 is known to be stable. While we do not currently add new features to it we are applying patches & hotfixes as they appear. We can only recommend using the µGFX library in your commercial product ? If it helps: There's an equally named company behind the µGFX library - This is not just a floating piece of software. Also professional support
  12. This was fixed in commit ff93884f71f783627f196330fd0c9f6a639bee56.
  13. Hello & welcome to the µGFX community! It would be definitely very appreciated if somebody could update the demo
  14. Hello & welcome to the µGFX community! This is certainly possible. The graph widget demo also plots multiple values in the same graph. However, in this case you'll most likely just end up having more than one graph widget/window on the same "display page".
  15. Hello & welcome to the µGFX community! Thank you for bringing this to our attention. We'll put it on the ToDo list for checking. Could you please leave a short description (and if necessary examples) as to why you think that this is the case? Some screenshots might also be helpful if possible
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