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Dec 20, 2015
Dec 20, 2015
Dec 20, 2015
Dec 20, 2015


What is µGUI?

µGUI is a free and open source graphic library for embedded systems. It is platform-independent and can be easily ported to almost any microcontroller system. As long as the display is capable of showing graphics, µGUI is not restricted to a certain display technology. Therefore, display technologies such as LCD, TFT, E-Paper, LED or OLED are supported. The whole module consists of three files: ugui.c, ugui.h and ugui_config.h.

µGUI Features

  • µGUI supports any color, grayscale or monochrome display
  • µGUI supports any display resolution
  • µGUI supports multiple different displays
  • µGUI supports any touch screen technology (e.g. AR, PCAP)
  • µGUI supports windows and objects (e.g. button, textbox)
  • µGUI supports platform-specific hardware acceleration
  • 16 different fonts available
  • cyrillic fonts supported
  • TrueType font converter available (
  • integrated and free scalable system console
  • basic geometric functions (e.g. line, circle, frame etc.)
  • can be easily ported to almost any microcontroller system
  • no risky dynamic memory allocation required

µGUI Requirements

µGUI is platform-independent, so there is no need to use a certain embedded system. In order to use µGUI, only two requirements are necessary:

  • a C-function which is able to control pixels of the target display.
  • integer types for the target platform have to be adjusted in ugui_config.h.


µGUI - Open Source GUI module for embedded systems




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