U8x8 Fonts [top] Jun 2026
When browsing U8x8 fonts, you will see suffixes:
In the world of embedded systems, resources are currency. You should choose U8x8 fonts when:
This is where the sub-module shines. Operating on a zero-RAM, direct-write architecture , U8x8 sends character data directly to the display hardware without an intermediate frame buffer. To achieve this ultra-low memory footprint, the library enforces a rigid restriction: all characters must fit into a fixed 8x8 pixel grid tile (or neat multiples of it). u8x8 fonts
Not all U8x8 fonts include the entire range of extended ASCII characters. Some fonts may omit special symbols or international characters. Always check the font documentation or inspect the font data to confirm that the characters you need are available. If not, you can add the missing characters manually or find a font that better matches your needs.
Specifically designed for u8x8.setFont() , offering extremely high performance for text-driven menus. 2. Setting Up and Using U8x8 Fonts When browsing U8x8 fonts, you will see suffixes:
They include specialized symbols, useful for icons in IoT devices. U8x8 vs. U8g2 Fonts
# Example: Convert a .bdf font python bdf2u8g2.py myfont.bdf myfont.c --u8x8 To achieve this ultra-low memory footprint, the library
As the U8g2 library continues to evolve, new font formats and capabilities are being introduced. The "big font" format introduced in version 2.25.x opened up new possibilities by allowing larger character sizes within the 8x8 constraint. Future enhancements may include more flexible scaling options, improved UTF-8 rendering performance, and even more memory optimization techniques.
This simple code demonstrates font switching and text placement. The drawString() function takes x and y parameters that represent the character position on the display, not individual pixel locations.
Text updates instantly because the library only sends the raw font bytes directly to the specific screen tile. Understanding U8x8 Font Properties