For makers and embedded developers, putting text on a small monochrome OLED or LCD screen is often the first step in adding a user interface to a project. While full-featured libraries like U8g2 offer powerful graphics capabilities, they can be overkill and memory-heavy for many projects. That's where the U8x8 library and its fonts come into play.
Some fonts are "large" and take up multiple tiles (e.g., 1x2, 2x2, or 3x6), where the pixel size is a multiple of 8 (a 2x2 font is 16x16 pixels). Commonly Used Fonts The official U8x8 Font List
| Suffix | Name | Description | Best For | | :--- | :--- | :--- | :--- | | | Regular | The standard ASCII set (32-126) and standard Latin-1 characters. | Default usage, English/western text. | | _n | Numbers Only | Contains the digits 0-9, decimal, and maybe a minus sign. | Numeric displays (clocks, counters, measurements). | | _u | u8g2 "Unicode" | Features a broad, user-configurable character range for complete multilingual coverage. | International projects needing full Unicode support. | | _f | Full Range | Provides nearly complete coverage for the target script. | Systems needing extended symbols or more glyphs (font pre-selected by the library author). |
Contains only numbers and basic mathematical symbols ( like . , - , : ). Use this for clocks and sensor readouts. u (Uppercase): Contains only numbers and uppercase letters. Popular U8x8 Fonts to Use 1. Standard 8x8 Fonts (Single Tile Height)
The fundamental rule is that every character you design must occupy a . Each character is stored as 8 individual bytes, with each byte controlling the state of the 8 pixels in a specific row. The leftmost pixel of the character corresponds to the most significant bit of that byte.
embedded directly within Oliver Kraus's popular U8g2 graphics library GitHub repository . Designed exclusively for microcontrollers with extreme RAM constraints, they operate under a distinct architectural philosophy compared to standard graphics fonts.
For makers and embedded developers, putting text on a small monochrome OLED or LCD screen is often the first step in adding a user interface to a project. While full-featured libraries like U8g2 offer powerful graphics capabilities, they can be overkill and memory-heavy for many projects. That's where the U8x8 library and its fonts come into play.
Some fonts are "large" and take up multiple tiles (e.g., 1x2, 2x2, or 3x6), where the pixel size is a multiple of 8 (a 2x2 font is 16x16 pixels). Commonly Used Fonts The official U8x8 Font List u8x8 fonts
| Suffix | Name | Description | Best For | | :--- | :--- | :--- | :--- | | | Regular | The standard ASCII set (32-126) and standard Latin-1 characters. | Default usage, English/western text. | | _n | Numbers Only | Contains the digits 0-9, decimal, and maybe a minus sign. | Numeric displays (clocks, counters, measurements). | | _u | u8g2 "Unicode" | Features a broad, user-configurable character range for complete multilingual coverage. | International projects needing full Unicode support. | | _f | Full Range | Provides nearly complete coverage for the target script. | Systems needing extended symbols or more glyphs (font pre-selected by the library author). | For makers and embedded developers, putting text on
Contains only numbers and basic mathematical symbols ( like . , - , : ). Use this for clocks and sensor readouts. u (Uppercase): Contains only numbers and uppercase letters. Popular U8x8 Fonts to Use 1. Standard 8x8 Fonts (Single Tile Height) Some fonts are "large" and take up multiple tiles (e
The fundamental rule is that every character you design must occupy a . Each character is stored as 8 individual bytes, with each byte controlling the state of the 8 pixels in a specific row. The leftmost pixel of the character corresponds to the most significant bit of that byte.
embedded directly within Oliver Kraus's popular U8g2 graphics library GitHub repository . Designed exclusively for microcontrollers with extreme RAM constraints, they operate under a distinct architectural philosophy compared to standard graphics fonts.