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

• 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 (https://github.com/AriZuu)
• 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 is platform-independent, so there is no need to use a certain embedded system. In order touse 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.