If you have ever worked with a monochrome OLED, a graphic LCD (like the Nokia 5110), or a VGA text generator on an FPGA, you have likely encountered a family of fonts known as the "Fixed" fonts. Among them—hiding in plain sight in thousands of repositories—is Font 6x14.h.
static const uint8_t font6x14[FONT6X14_COUNT][FONT6X14_HEIGHT] = /* 32 ' ' */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 33 '!' */ 0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x10,0x10,0x00,0x00,0x00,0x00, /* 34 '"' */ 0x28,0x28,0x28,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 35 '#' */ 0x00,0x28,0x28,0x7C,0x28,0x28,0x7C,0x28,0x28,0x00,0x00,0x00,0x00,0x00, /* 36 '$' */ 0x10,0x3C,0x54,0x50,0x3C,0x14,0x14,0x74,0x50,0x4C,0x00,0x00,0x00,0x00, /* 37 '%' */ 0x60,0x92,0x92,0x24,0x10,0x48,0x92,0x92,0x04,0x00,0x00,0x00,0x00,0x00, /* 38 '&' */ 0x38,0x44,0x44,0x38,0x50,0x48,0x44,0x44,0x3A,0x00,0x00,0x00,0x00,0x00, /* 39 ''' */ 0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 40 '(' */ 0x08,0x10,0x10,0x20,0x20,0x20,0x20,0x20,0x10,0x10,0x08,0x00,0x00,0x00, /* 41 ')' */ 0x20,0x10,0x10,0x08,0x08,0x08,0x08,0x08,0x10,0x10,0x20,0x00,0x00,0x00, /* 42 '*' */ 0x00,0x10,0x7C,0x38,0x38,0x7C,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 43 '+' */ 0x00,0x00,0x10,0x10,0x10,0x7C,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 44 ',' */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x20,0x00,0x00,0x00,0x00, /* 45 '-' */ 0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 46 '.' */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 47 '/' */ 0x02,0x04,0x04,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x00,0x00,0x00,0x00, /* 48 '0' */ 0x3C,0x42,0x42,0x66,0x5A,0x4A,0x4A,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 49 '1' */ 0x10,0x18,0x1C,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00,0x00,0x00,0x00, /* 50 '2' */ 0x3C,0x42,0x02,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00,0x00,0x00,0x00, /* 51 '3' */ 0x3C,0x42,0x02,0x1C,0x02,0x02,0x02,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 52 '4' */ 0x04,0x0C,0x14,0x24,0x44,0x7E,0x04,0x04,0x04,0x00,0x00,0x00,0x00,0x00, /* 53 '5' */ 0x7E,0x40,0x40,0x7C,0x02,0x02,0x02,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 54 '6' */ 0x1C,0x20,0x40,0x7C,0x42,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 55 '7' */ 0x7E,0x02,0x04,0x08,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 56 '8' */ 0x3C,0x42,0x42,0x42,0x3C,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 57 '9' */ 0x3C,0x42,0x42,0x42,0x3E,0x02,0x04,0x08,0x30,0x00,0x00,0x00,0x00,0x00, /* 58 ':' */ 0x00,0x00,0x00,0x10,0x10,0x00,0x00,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 59 ';' */ 0x00,0x00,0x00,0x10,0x10,0x00,0x00,0x10,0x10,0x20,0x00,0x00,0x00,0x00, /* 60 '<' */ 0x00,0x00,0x04,0x08,0x10,0x20,0x10,0x08,0x04,0x00,0x00,0x00,0x00,0x00, /* 61 '=' */ 0x00,0x00,0x00,0x7C,0x00,0x00,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 62 '>' */ 0x00,0x00,0x20,0x10,0x08,0x04,0x08,0x10,0x20,0x00,0x00,0x00,0x00,0x00, /* 63 '?' */ 0x3C,0x42,0x02,0x04,0x08,0x10,0x10,0x00,0x10,0x10,0x00,0x00,0x00,0x00, /* 64 '@' */ 0x3C,0x42,0x5A,0x5A,0x5A,0x5A,0x42,0x22,0x3C,0x00,0x00,0x00,0x00,0x00, /* 65 'A' */ 0x10,0x28,0x28,0x28,0x44,0x44,0x7C,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /* 66 'B' */ 0x78,0x44,0x44,0x78,0x44,0x44,0x44,0x44,0x78,0x00,0x00,0x00,0x00,0x00, /* 67 'C' */ 0x3C,0x42,0x40,0x40,0x40,0x40,0x40,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 68 'D' */ 0x70,0x48,0x44,0x44,0x44,0x44,0x44,0x48,0x70,0x00,0x00,0x00,0x00,0x00, /* 69 'E' */ 0x7E,0x40,0x40,0x7C,0x40,0x40,0x40,0x40,0x7E,0x00,0x00,0x00,0x00,0x00, /* 70 'F' */ 0x7E,0x40,0x40,0x7C,0x40,0x40,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0x00, /* 71 'G' */ 0x3C,0x42,0x40,0x40,0x4E,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 72 'H' */ 0x44,0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /* 73 'I' */ 0x38,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00,0x00,0x00,0x00, /* 74 'J' */ 0x1E,0x08,0x08,0x08,0x08,0x08,0x48,0x48,0x30,0x00,0x00,0x00,0x00,0x00, /* 75 'K' */ 0x44,0x48,0x50,0x60,0x50,0x48,0x48,0x44,0x42,0x00,0x00,0x00,0x00,0x00, /* 76 'L' */ 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7E,0x00,0x00,0x00,0x00,0x00, /* 77 'M' */ 0x82,0xC6,0xAA,0x92,0x82,0x82,0x82,0x82,0x82,0x00,0x00,0x00,0x00,0x00, /* 78 'N' */ 0x44,0x64,0x54,0x4C,0x44,0x44,0x44,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /* 79 'O' */ 0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 80 'P' */ 0x78,0x44,0x44,0x44,0x78,0x40,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0x00, /* 81 'Q' */ 0x3C,0x42,0x42,0x42,0x42,0x4A,0x4A,0x24,0x3A,0x00,0x00,0x00,0x00,0x00, /* 82 'R' */ 0x78,0x44,0x44,0x44,0x78,0x50,0x48,0x44,0x42,0x00,0x00,0x00,0x00,0x00, /* 83 'S' */ 0x3C,0x42,0x40,0x3C,0x02,0x02,0x02,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /* 84 'T' */ 0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 85 'U' */ 0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x3C,0x00,0x00,0x00,0x00,0x00, /* 86 'V' */ 0x44,0x44,0x44,0x44,0x44,0x28,0x28,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 87 'W' */ 0x82,0x82,0x82,0x92,0x92,0xAA,0xAA,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /* 88 'X' */ 0x44,0x44,0x28,0x10,0x10,0x28,0x28,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /* 89 'Y' */ 0x44,0x44,0x28,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /* 90 'Z' */ 0x7E,0x02,0x04,0x08,0x10,0x20,0x40,0x40,0x7E,0x00,0x00,0x00,0x00,0x00, /* 91 '[' */ 0x3C,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3C,0x00,0x00,0x00,0x00,0x00, /* 92 '\' */ 0x40,0x20,0x20,0x10,0x10,0x08,0x08,0x04,0x04,0x02,0x00,0x00,0x00,0x00, /* 93 ']' */ 0x3C,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x3C,0x00,0x00,0x00,0x00,0x00, /* 94 '^' */ 0x10,0x28,0x44,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 95 '_' */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x00,0x00,0x00,0x00, /* 96 '`' */ 0x10,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 97 'a' */ 0x00,0x00,0x00,0x3C,0x02,0x3E,0x42,0x46,0x3A,0x00,0x00,0x00,0x00,0x00, /* 98 'b' */ 0x40,0x40,0x40,0x5C,0x62,0x42,0x42,0x62,0x5C,0x00,0x00,0x00,0x00,0x00, /* 99 'c' */ 0x00,0x00,0x00,0x3C,0x42,0x40,0x40,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /*100 'd' */ 0x02,0x02,0x02,0x3A,0x46,0x42,0x42,0x46,0x3A,0x00,0x00,0x00,0x00,0x00, /*101 'e' */ 0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /*102 'f' */ 0x0C,0x12,0x10,0x7C,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /*103 'g' */ 0x00,0x00,0x00,0x3A,0x46,0x42,0x46,0x3A,0x02,0x44,0x38,0x00,0x00,0x00, /*104 'h' */ 0x40,0x40,0x40,0x5C,0x62,0x42,0x42,0x42,0x42,0x00,0x00,0x00,0x00,0x00, /*105 'i' */ 0x10,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /*106 'j' */ 0x04,0x00,0x04,0x04,0x04,0x04,0x04,0x44,0x44,0x38,0x00,0x00,0x00,0x00, /*107 'k' */ 0x40,0x40,0x40,0x44,0x48,0x50,0x60,0x50,0x48,0x00,0x00,0x00,0x00,0x00, /*108 'l' */ 0x18,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00,0x00,0x00,0x00, /*109 'm' */ 0x00,0x00,0x00,0x6A,0xFE,0x92,0x92,0x92,0x92,0x00,0x00,0x00,0x00,0x00, /*110 'n' */ 0x00,0x00,0x00,0x5C,0x62,0x42,0x42,0x42,0x42,0x00,0x00,0x00,0x00,0x00, /*111 'o' */ 0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x3C,0x00,0x00,0x00,0x00,0x00, /*112 'p' */ 0x00,0x00,0x00,0x5C,0x62,0x42,0x62,0x5C,0x40,0x40,0x40,0x00,0x00,0x00, /*113 'q' */ 0x00,0x00,0x00,0x3A,0x46,0x42,0x46,0x3A,0x02,0x02,0x02,0x00,0x00,0x00, /*114 'r' */ 0x00,0x00,0x00,0x5C,0x62,0x40,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0x00, /*115 's' */ 0x00,0x00,0x00,0x3E,0x40,0x3C,0x02,0x02,0x7C,0x00,0x00,0x00,0x00,0x00, /*116 't' */ 0x10,0x10,0x10,0x7C,0x10,0x10,0x10,0x12,0x0C,0x00,0x00,0x00,0x00,0x00, /*117 'u' */ 0x00,0x00,0x00,0x44,0x44,0x44,0x44,0x4A,0x34,0x00,0x00,0x00,0x00,0x00, /*118 'v' */ 0x00,0x00,0x00,0x44,0x44,0x28,0x28,0x10,0x10,0x00,0x00,0x00,0x00,0x00, /*119 'w' */ 0x00,0x00,0x00,0x82,0x92,0xAA,0x44,0x44,0x44,0x00,0x00,0x00,0x00,0x00, /*120 'x' */ 0x00,0x00,0x00,0x44,0x28,0x10,0x10,0x28,0x44,0x00,0x00,0x00,0x00,0x00, /*121 'y' */ 0x00,0x00,0x00,0x44,0x44,0x46,0x3A,0x02,0x44,0x38,0x00,0x00,0x00,0x00, /*122 'z' */ 0x00,0x00,0x00,0x7E,0x04,0x08,0x10,0x20,0x7E,0x00,0x00,0x00,0x00,0x00, /*123 '' */ 0x0C,0x10,0x10,0x10,0x20,0x10,0x10,0x10,0x0C,0x00,0x00,0x00,0x00,0x00, /*124 '' */ 0x30,0x08,0x08,0x08,0x04,0x08,0x08,0x08,0x30,0x00,0x00,0x00,0x00,0x00, /*126 '~' */ 0x00,0x00,0x00,0x32,0x4C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*127 DEL (blank) */ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ;void setup() u8g2.begin(); u8g2.setFont(u8g2_font_6x14_t); // <-- The 6x14 font built-in u8g2.setFontDirection(0); Font 6x14.h Library Download
0x00 represents a row where no pixels are lit.0x08 in binary is 00001000 (The pixel in the 4th column is lit).Readability: The 14-pixel height allows for clear character definition, including recognizable descenders for lowercase letters, which are often lost in smaller 5x7 or 6x8 fonts. The Unsung Hero of Clarity: A Deep Dive into the Font 6x14
6x14 allows you to render a full sentence of text without the letters bleeding into the row above or below. It is the smallest font that properly handles typography (ascenders like 'b' and descenders like 'p'). 0x00 represents a row where no pixels are lit
Dimensions: The name signifies a fixed-width font where each character is 6 pixels wide and 14 pixels high.
// Total bytes = (Height + 7) / 8 * Width // For 14px height: (14 + 7) / 8 = 2 bytes per column // 2 bytes * 6 columns = 12 bytes per char #define FONT_6X14_BYTES_PER_CHAR 12The Logic of a 6x14 Font: