U8x8 Fonts

You will often see names like u8x8_font_5x7_r and u8x8_font_5x7_b.

Most people encounter U8x8 fonts through the popular U8g2 library for Arduino and other microcontrollers. This library offers two rendering modes: u8x8 fonts

When you call u8x8.drawString(0, 0, "Hello"), the library looks up each character in the compiled U8x8 font table and writes its 8 bytes directly to the display controller. You will often see names like u8x8_font_5x7_r and

Here are the most commonly used fonts categorized by style. When you call u8x8

A U8x8 font is a C array stored in PROGMEM (Flash). Each character is 8 consecutive bytes. For a full ASCII set (32-127, that's 96 characters), you need 96 * 8 = 768 bytes.

Here is the pattern for the letter 'A' (8x8):

// 'A' (ASCII 65)
0x00, // ........
0x3C, // ..####..
0x66, // .##..##.
0x66, // .##..##.
0x7E, // .######.
0x66, // .##..##.
0x66, // .##..##.
0x00  // ........