GLCD SED1531 Library

C-Library for microcontrollers to control SED1531 based LCD's

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The GLCD SED1531 Library provides functions to draw pixels, lines, filled- and open rectangles and text for micro-controllers such as the Atmel 8-bit AVR series for (very cheap!) SED1531 controller based graphical LCD's.

The library is written with portability to other micro-controllers and compilers in mind; all target specific parts are stored in a separated header file . The included example is for the Atmel ATtiny2313 and AVR-GCC. It is expected that other targets can be supported with minimal effort.

A demo of this library can be watched here:

GLCD SED1531 Library Web Site


  • Drawing functions for pixel, line, text, filled- and open rectangles
  • Flexible font support: proportional-, fixed sized-, custom- and multiple fonts
  • Optimized for 8-bit micro-controllers
  • Small memory footprint (demo requires less than 2KBytes flash)
  • Fonts and text can be retrieved directly from flash memory
  • Portable; entirely written in C, target specific parts in separate header file.

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