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I want to create a GUI driven application for a micro-controller (Atmel XMEGA) that is connected to a 128x64 dots graphics LCD (EA DOGL128-6) and 4 buttons for navigation.
Controlling the display itself (e.g. drawing pixels and characters) is no problem but in order to prevent me from reinventing the wheel I was googling for a GUI-Library/-Toolkit that is written in c, includes its source code, will run on a 32 MHz 8-bit micro-controller and provides at least the following controls:
But I didn't find any thing useful. Does anyone know (or better uses) such a library(preferably for free)?
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LVGL is the most popular free and open source embedded graphics library to create beautiful UIs for any MCU, MPU and display type. It's boosted by a professional yet affordable drag and drop UI editor, called SquareLine Studio.
LvGL is an open-source graphics library providing everything you need to create embedded GUI with easy-to-use graphical elements, beautiful visual effects and low memory footprint.
µGFX is a lightweight embedded library for displays and touchscreens providing everything required to build a fully featured embedded GUI. The library is very small and fast because every unused feature is disabled and not linked into the finished binary. LEARN MORE.
I would consider rolling your own "immediate mode" GUI. Jari Komppa has a good tutorial about them. It's a lot easier than you may think, and you'll probably find most GUI libraries--even those targeting embedded systems--are a bit heavy-weight for your system.
If you insist on using a third-party library, below are a few I found. I've never used any of them and they are probably fairly expensive.
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