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nixie-clock/firmware/uniclock/ESP32_UniClock2/font5x7.h
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Import ESP_UniClock (upstream 1189810)
2026-10-25 20:48:04 +01:00
// =============================================================================
// font5x7.h - 5x7 dot-matrix bitmap font table
// =============================================================================
//
// WHAT THIS IS
// A 256-glyph bitmap font (derived from the classic Adafruit GLCD 5x7 font,
// "glcdfont.c") used to render single characters on 5-column x 7-row LED
// matrix / dot-matrix displays. Several glyphs have been hand-modified from
// the original Adafruit set (see "old:" comments below for the replaced
// values), and the upper half of the table (0x80-0xFF) has been customized
// with Hungarian/German accented letters (a, ä, ö, u, Ä, Ö, U), Greek
// letters, and math/misc symbols in place of the original CP437 glyphs.
//
// DATA LAYOUT
// _font[] is a flat byte array with exactly 5 bytes per character:
// _font[c*5 + col] for col = 0..4 (NUMCOLS in wordclock.ino)
// Each byte is one COLUMN of the glyph (column-major, not row-major).
// Within a byte, bit 0 (LSB) is the TOP pixel of that column and bit 6 is
// the BOTTOM pixel (7 rows tall); bit 7 is unused/always 0. Columns are
// ordered left-to-right within each 5-byte block.
// The table holds 256 entries indexed 0x00-0xFF, i.e. it is indexed
// directly by (unsigned) character code - there is no separate character
// map or lookup table.
//
// WHO USES IT
// wordclock.ino is the only consumer: it does #include "font5x7.h" and
// reads the array in show(byte c) as
// loccol[i] = _font[c*NUMCOLS + i];
// then calls transposePattern() to convert the column-major glyph into the
// row-major bit pattern actually clocked out to the display hardware
// (honoring the _upsidedown orientation flag). No other .ino in this
// project references _font[] or includes this header.
//
// CHARACTER RANGE
// 0x00-0x1F : custom symbols (smileys, suits, arrows, euro sign, etc.),
// not standard control characters.
// 0x20-0x7E : standard printable ASCII (space through ~).
// 0x7F-0xFF : custom/extended glyphs - accented Hungarian/German letters,
// Greek letters, and math symbols (see inline comments).
// =============================================================================
byte _font[] = {
0x00, 0x00, 0x00, 0x00, 0x00, // 0x00 empty
0x3E, 0x5B, 0x4F, 0x5B, 0x3E, // 0x01 sad
0x3E, 0x6B, 0x4F, 0x6B, 0x3E, // 0x02 happy
0x1C, 0x3E, 0x7C, 0x3E, 0x1C, // 0x03 heart
0x18, 0x3C, 0x7E, 0x3C, 0x18, // 0x04 diamond
0x1C, 0x57, 0x7D, 0x57, 0x1C, // 0x05 clover
0x1C, 0x5E, 0x7F, 0x5E, 0x1C, // 0x06 spade
0x00, 0x18, 0x3C, 0x18, 0x00, // 0x07 small full circle
0xFF, 0xE7, 0xC3, 0xE7, 0xFF, // 0x08 inverted small circle
0x06, 0x09, 0x06, 0x00, 0x00, // 0x09 small empty circle //old: 0x00, 0x18, 0x24, 0x18, 0x00, // 0x09 small empty circle
0xFF, 0xE7, 0xDB, 0xE7, 0xFF, // 0x0A block (linefeed)
0x30, 0x48, 0x3A, 0x06, 0x0E, // 0x0B male
0x26, 0x29, 0x79, 0x29, 0x26, // 0x0C female
0x40, 0x7F, 0x05, 0x05, 0x07, // 0x0D note (carriage return)
0x40, 0x7F, 0x05, 0x25, 0x3F, // 0x0E two notes
0x5A, 0x3C, 0xE7, 0x3C, 0x5A, // 0x0F sun
0x7F, 0x3E, 0x1C, 0x1C, 0x08, // 0x10 right triangle
0x08, 0x1C, 0x1C, 0x3E, 0x7F, // 0x11 left triangle
0x14, 0x22, 0x7F, 0x22, 0x14, // 0x12 up/down arrow
0x5F, 0x5F, 0x00, 0x5F, 0x5F, // 0x13 double exclamation mark
0x06, 0x09, 0x7F, 0x01, 0x7F, // 0x14 paragraph end sign (pilcrow)
// 0x00, 0x66, 0x89, 0x95, 0x6A, // 0x15 paragraph sign original
0x00, 0x26, 0x49, 0x55, 0x28, // 0x15 paragraph sign
0x60, 0x60, 0x60, 0x60, 0x60, // 0x16 double underline
0x54, 0x62, 0x7F, 0x62, 0x54, // 0x17 up/down arrow with underline
0x08, 0x04, 0x7E, 0x04, 0x08, // 0x18 up arrow
0x10, 0x20, 0x7E, 0x20, 0x10, // 0x19 down arrow
0x08, 0x08, 0x2A, 0x1C, 0x08, // 0x1A right arrow
0x08, 0x1C, 0x2A, 0x08, 0x08, // 0x1B left arrow
0x14, 0x3E, 0x55, 0x41, 0x22, // 0x1C euro
0x63, 0x75, 0x69, 0x75, 0x63, // 0x1D timer
0x30, 0x38, 0x3E, 0x38, 0x30, // 0x1E up triangle
0x06, 0x0E, 0x3E, 0x0E, 0x06, // 0x1F down triangle
0x00, 0x00, 0x00, 0x00, 0x00, // 0x20 space
0x00, 0x00, 0x5F, 0x00, 0x00, // 0x21 !
0x00, 0x07, 0x00, 0x07, 0x00, // 0x22 "
0x14, 0x7F, 0x14, 0x7F, 0x14, // 0x23 #
0x24, 0x2A, 0x7F, 0x2A, 0x12, // 0x24 $
0x23, 0x13, 0x08, 0x64, 0x62, // 0x25 %
0x36, 0x49, 0x56, 0x20, 0x50, // 0x26 &
0x00, 0x08, 0x07, 0x03, 0x00, // 0x27 ´
0x00, 0x1C, 0x22, 0x41, 0x00, // 0x28 (
0x00, 0x41, 0x22, 0x1C, 0x00, // 0x29 )
0x2A, 0x1C, 0x7F, 0x1C, 0x2A, // 0x2A *
0x08, 0x08, 0x3E, 0x08, 0x08, // 0x2B +
0x00, 0x80, 0x70, 0x30, 0x00, // 0x2C ,
0x08, 0x08, 0x08, 0x08, 0x08, // 0x2D -
0x00, 0x00, 0x60, 0x60, 0x00, // 0x2E .
0x20, 0x10, 0x08, 0x04, 0x02, // 0x2F /
0x3E, 0x51, 0x49, 0x45, 0x3E, // 0x30 0
0x00, 0x42, 0x7F, 0x40, 0x00, // 0x31 1
0x72, 0x49, 0x49, 0x49, 0x46, // 0x32 2
0x21, 0x41, 0x49, 0x4D, 0x33, // 0x33 3
0x18, 0x14, 0x12, 0x7F, 0x10, // 0x34 4
0x27, 0x45, 0x45, 0x45, 0x39, // 0x35 5
0x3C, 0x4A, 0x49, 0x49, 0x31, // 0x36 6
0x41, 0x21, 0x11, 0x09, 0x07, // 0x37 7
0x36, 0x49, 0x49, 0x49, 0x36, // 0x38 8
0x46, 0x49, 0x49, 0x29, 0x1E, // 0x39 9
0x00, 0x00, 0x14, 0x00, 0x00, // 0x3A :
0x00, 0x40, 0x34, 0x00, 0x00, // 0x3B ;
0x00, 0x08, 0x14, 0x22, 0x41, // 0x3C <
0x14, 0x14, 0x14, 0x14, 0x14, // 0x3D =
0x00, 0x41, 0x22, 0x14, 0x08, // 0x3E >
0x02, 0x01, 0x59, 0x09, 0x06, // 0x3F ?
0x3E, 0x41, 0x5D, 0x59, 0x4E, // 0x40 @
0x7C, 0x12, 0x11, 0x12, 0x7C, // 0x41 A
0x7F, 0x49, 0x49, 0x49, 0x36, // 0x42 B
0x3E, 0x41, 0x41, 0x41, 0x22, // 0x43 C
0x7F, 0x41, 0x41, 0x41, 0x3E, // 0x44 D
0x7F, 0x49, 0x49, 0x49, 0x41, // 0x45 E
0x7F, 0x09, 0x09, 0x09, 0x01, // 0x46 F
0x3E, 0x41, 0x41, 0x51, 0x73, // 0x47 G
0x7F, 0x08, 0x08, 0x08, 0x7F, // 0x48 H
0x00, 0x41, 0x7F, 0x41, 0x00, // 0x49 I
0x20, 0x40, 0x41, 0x3F, 0x01, // 0x4A J
0x7F, 0x08, 0x14, 0x22, 0x41, // 0x4B K
0x7F, 0x40, 0x40, 0x40, 0x40, // 0x4C L
0x7F, 0x02, 0x1C, 0x02, 0x7F, // 0x4D M
0x7F, 0x04, 0x08, 0x10, 0x7F, // 0x4E N
0x3E, 0x41, 0x41, 0x41, 0x3E, // 0x4F O
0x7F, 0x09, 0x09, 0x09, 0x06, // 0x50 P
0x3E, 0x41, 0x51, 0x21, 0x5E, // 0x51 Q
0x7F, 0x09, 0x19, 0x29, 0x46, // 0x52 R
0x26, 0x49, 0x49, 0x49, 0x32, // 0x53 S
0x03, 0x01, 0x7F, 0x01, 0x03, // 0x54 T
0x3F, 0x40, 0x40, 0x40, 0x3F, // 0x55 U
0x1F, 0x20, 0x40, 0x20, 0x1F, // 0x56 V
0x3F, 0x40, 0x38, 0x40, 0x3F, // 0x57 W
0x63, 0x14, 0x08, 0x14, 0x63, // 0x58 X
0x03, 0x04, 0x78, 0x04, 0x03, // 0x59 Y
0x61, 0x59, 0x49, 0x4D, 0x43, // 0x5A Z
0x00, 0x7F, 0x41, 0x41, 0x41, // 0x5B [
0x02, 0x04, 0x08, 0x10, 0x20, // 0x5C '\'
0x00, 0x41, 0x41, 0x41, 0x7F, // 0x5D ]
0x04, 0x02, 0x01, 0x02, 0x04, // 0x5E ^
0x40, 0x40, 0x40, 0x40, 0x40, // 0x5F _
0x00, 0x03, 0x07, 0x08, 0x00, // 0x60 `
0x20, 0x54, 0x54, 0x78, 0x40, // 0x61 a
0x7F, 0x28, 0x44, 0x44, 0x38, // 0x62 b
0x38, 0x44, 0x44, 0x44, 0x00, // 0x63 c
0x38, 0x44, 0x44, 0x28, 0x7F, // 0x64 d
0x38, 0x54, 0x54, 0x54, 0x18, // 0x65 e
0x00, 0x08, 0x7E, 0x09, 0x02, // 0x66 f
// 0x18, 0xA4, 0xA4, 0x9C, 0x78, // 0x67 g (old)
0x0C, 0x52, 0x52, 0x4E, 0x3C, // 0x67 g
0x7F, 0x08, 0x04, 0x04, 0x78, // 0x68 h
0x00, 0x44, 0x7D, 0x40, 0x00, // 0x69 i
0x20, 0x40, 0x40, 0x3D, 0x00, // 0x6A j
0x7F, 0x10, 0x28, 0x44, 0x00, // 0x6B k
0x00, 0x41, 0x7F, 0x40, 0x00, // 0x6C l
0x7C, 0x04, 0x78, 0x04, 0x78, // 0x6D m
0x7C, 0x08, 0x04, 0x04, 0x78, // 0x6E n
0x38, 0x44, 0x44, 0x44, 0x38, // 0x6F o
0xFC, 0x18, 0x24, 0x24, 0x18, // 0x70 p
// 0x18, 0x24, 0x24, 0x18, 0xFC, // 0x71 q (old)
0x0C, 0x12, 0x12, 0x0C, 0x7E, // 0x71 q
0x7C, 0x08, 0x04, 0x04, 0x08, // 0x72 r
0x48, 0x54, 0x54, 0x54, 0x24, // 0x73 s
0x04, 0x04, 0x3F, 0x44, 0x24, // 0x74 t
0x3C, 0x40, 0x40, 0x20, 0x7C, // 0x75 u
0x1C, 0x20, 0x40, 0x20, 0x1C, // 0x76 v
0x3C, 0x40, 0x30, 0x40, 0x3C, // 0x77 w
0x44, 0x28, 0x10, 0x28, 0x44, // 0x78 x
0x0C, 0x10, 0x10, 0x50, 0x3C, // 0x79 y
0x44, 0x64, 0x54, 0x4C, 0x44, // 0x7A z
0x00, 0x08, 0x36, 0x41, 0x00, // 0x7B {
0x00, 0x00, 0x7F, 0x00, 0x00, // 0x7C |
0x00, 0x41, 0x36, 0x08, 0x00, // 0x7D }
0x02, 0x01, 0x02, 0x04, 0x02, // 0x7E ~
0x3C, 0x26, 0x23, 0x26, 0x3C, // 0x7F house
0x1E, 0xA1, 0xA1, 0x61, 0x12, // 0x81
0x3A, 0x40, 0x40, 0x20, 0x7A, // 0x81 ü
0x38, 0x54, 0x54, 0x55, 0x59, // 0x82
0x21, 0x55, 0x55, 0x79, 0x41, // 0x83
0x21, 0x54, 0x54, 0x78, 0x41, // 0x84 ä
0x21, 0x55, 0x54, 0x78, 0x40, // 0x85
0x20, 0x54, 0x55, 0x79, 0x40, // 0x86
0x0C, 0x1E, 0x52, 0x72, 0x12, // 0x87
0x39, 0x55, 0x55, 0x55, 0x59, // 0x88
0x39, 0x54, 0x54, 0x54, 0x59, // 0x89
0x39, 0x55, 0x54, 0x54, 0x58, // 0x8A
0x00, 0x00, 0x45, 0x7C, 0x41, // 0x8B
0x00, 0x02, 0x45, 0x7D, 0x42, // 0x8C
0x00, 0x01, 0x45, 0x7C, 0x40, // 0x8D
0xF0, 0x29, 0x24, 0x29, 0xF0, // 0x8E Ä
0xF0, 0x28, 0x25, 0x28, 0xF0, // 0x8F
0x7C, 0x54, 0x55, 0x45, 0x00, // 0x90
0x20, 0x54, 0x54, 0x7C, 0x54, // 0x91
0x7C, 0x0A, 0x09, 0x7F, 0x49, // 0x92
0x32, 0x49, 0x49, 0x49, 0x32, // 0x93
0x32, 0x48, 0x48, 0x48, 0x32, // 0x94 ö
0x32, 0x4A, 0x48, 0x48, 0x30, // 0x95
0x3A, 0x41, 0x41, 0x21, 0x7A, // 0x96
0x3A, 0x42, 0x40, 0x20, 0x78, // 0x97
0x00, 0x9D, 0xA0, 0xA0, 0x7D, // 0x98
//0x39, 0x44, 0x44, 0x44, 0x39, // 0x99 Ö (old)
0x3D, 0x42, 0x42, 0x42, 0x3D, // 0x99 Ö
0x3D, 0x40, 0x40, 0x40, 0x3D, // 0x9A Ü
0x3C, 0x24, 0xFF, 0x24, 0x24, // 0x9B cent
0x48, 0x7E, 0x49, 0x43, 0x66, // 0x9C pound
0x2B, 0x2F, 0xFC, 0x2F, 0x2B, // 0x9D
0xFF, 0x09, 0x29, 0xF6, 0x20, // 0x9E
0xC0, 0x88, 0x7E, 0x09, 0x03, // 0x9F
0x20, 0x54, 0x54, 0x79, 0x41, // 0xA0
0x00, 0x00, 0x44, 0x7D, 0x41, // 0xA1
0x30, 0x48, 0x48, 0x4A, 0x32, // 0xA2
0x38, 0x40, 0x40, 0x22, 0x7A, // 0xA3
0x00, 0x7A, 0x0A, 0x0A, 0x72, // 0xA4
0x7D, 0x0D, 0x19, 0x31, 0x7D, // 0xA5
0x26, 0x29, 0x29, 0x2F, 0x28, // 0xA6
0x26, 0x29, 0x29, 0x29, 0x26, // 0xA7
0x30, 0x48, 0x4D, 0x40, 0x20, // 0xA8
0x38, 0x08, 0x08, 0x08, 0x08, // 0xA9
0x08, 0x08, 0x08, 0x08, 0x38, // 0xAA
0x2F, 0x10, 0xC8, 0xAC, 0xBA, // 0xAB
0x2F, 0x10, 0x28, 0x34, 0xFA, // 0xAC
0x00, 0x00, 0x7B, 0x00, 0x00, // 0xAD exclamation mark upside down
0x08, 0x14, 0x2A, 0x14, 0x22, // 0xAE less less
0x22, 0x14, 0x2A, 0x14, 0x08, // 0xAF greater greater
0xAA, 0x00, 0x55, 0x00, 0xAA, // 0xB0
0xAA, 0x55, 0xAA, 0x55, 0xAA, // 0xB1
0xAA, 0x55, 0xAA, 0x55, 0xAA, // 0xB2
0x00, 0x00, 0x00, 0xFF, 0x00, // 0xB3
0x10, 0x10, 0x10, 0xFF, 0x00, // 0xB4
0x14, 0x14, 0x14, 0xFF, 0x00, // 0xB5
0x10, 0x10, 0xFF, 0x00, 0xFF, // 0xB6
0x10, 0x10, 0xF0, 0x10, 0xF0, // 0xB7
0x14, 0x14, 0x14, 0xFC, 0x00, // 0xB8
0x14, 0x14, 0xF7, 0x00, 0xFF, // 0xB9
0x00, 0x00, 0xFF, 0x00, 0xFF, // 0xBA
0x14, 0x14, 0xF4, 0x04, 0xFC, // 0xBB
0x14, 0x14, 0x17, 0x10, 0x1F, // 0xBC
0x10, 0x10, 0x1F, 0x10, 0x1F, // 0xBD
0x14, 0x14, 0x14, 0x1F, 0x00, // 0xBE
0x10, 0x10, 0x10, 0xF0, 0x00, // 0xBF
0x00, 0x00, 0x00, 0x1F, 0x10, // 0xC0
0x10, 0x10, 0x10, 0x1F, 0x10, // 0xC1
0x10, 0x10, 0x10, 0xF0, 0x10, // 0xC2
0x00, 0x00, 0x00, 0xFF, 0x10, // 0xC3
0x10, 0x10, 0x10, 0x10, 0x10, // 0xC4
0x10, 0x10, 0x10, 0xFF, 0x10, // 0xC5
0x00, 0x00, 0x00, 0xFF, 0x14, // 0xC6
0x00, 0x00, 0xFF, 0x00, 0xFF, // 0xC7
0x00, 0x00, 0x1F, 0x10, 0x17, // 0xC8
0x00, 0x00, 0xFC, 0x04, 0xF4, // 0xC9
0x14, 0x14, 0x17, 0x10, 0x17, // 0xCA
0x14, 0x14, 0xF4, 0x04, 0xF4, // 0xCB
0x00, 0x00, 0xFF, 0x00, 0xF7, // 0xCC
0x14, 0x14, 0x14, 0x14, 0x14, // 0xCD
0x14, 0x14, 0xF7, 0x00, 0xF7, // 0xCE
0x14, 0x14, 0x14, 0x17, 0x14, // 0xCF
0x10, 0x10, 0x1F, 0x10, 0x1F, // 0xD0
0x14, 0x14, 0x14, 0xF4, 0x14, // 0xD1
0x10, 0x10, 0xF0, 0x10, 0xF0, // 0xD2
0x00, 0x00, 0x1F, 0x10, 0x1F, // 0xD3
0x00, 0x00, 0x00, 0x1F, 0x14, // 0xD4
0x00, 0x00, 0x00, 0xFC, 0x14, // 0xD5
0x00, 0x00, 0xF0, 0x10, 0xF0, // 0xD6
0x10, 0x10, 0xFF, 0x10, 0xFF, // 0xD7
0x14, 0x14, 0x14, 0xFF, 0x14, // 0xD8
0x10, 0x10, 0x10, 0x1F, 0x00, // 0xD9
0x00, 0x00, 0x00, 0xF0, 0x10, // 0xDA
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // 0xDB
0xF0, 0xF0, 0xF0, 0xF0, 0xF0, // 0xDC
0xFF, 0xFF, 0xFF, 0x00, 0x00, // 0xDD
0x00, 0x00, 0x00, 0xFF, 0xFF, // 0xDE
0x0F, 0x0F, 0x0F, 0x0F, 0x0F, // 0xDF
0x38, 0x44, 0x44, 0x38, 0x44, // 0xE0 alpha
0x7C, 0x2A, 0x2A, 0x3E, 0x14, // 0xE1 beta / ß
0x7E, 0x02, 0x02, 0x06, 0x06, // 0xE2 Gamma
0x02, 0x7E, 0x02, 0x7E, 0x02, // 0xE3 Pi
0x63, 0x55, 0x49, 0x41, 0x63, // 0xE4 Sigma
0x38, 0x44, 0x44, 0x3C, 0x04, // 0xE5 sigma
0x40, 0x7E, 0x20, 0x1E, 0x20, // 0xE6 mu
0x06, 0x02, 0x7E, 0x02, 0x02, // 0xE7 tau
0x99, 0xA5, 0xE7, 0xA5, 0x99, // 0xE8 Phi
0x1C, 0x2A, 0x49, 0x2A, 0x1C, // 0xE9 theta
0x4C, 0x72, 0x01, 0x72, 0x4C, // 0xEA Omega
0x30, 0x4A, 0x4D, 0x4D, 0x30, // 0xEB delta
0x30, 0x48, 0x78, 0x48, 0x30, // 0xEC phi?
0xBC, 0x62, 0x5A, 0x46, 0x3D, // 0xED empty set
0x3E, 0x49, 0x49, 0x49, 0x00, // 0xEE epsilon
0x7E, 0x01, 0x01, 0x01, 0x7E, // 0xEF
0x2A, 0x2A, 0x2A, 0x2A, 0x2A, // 0xF0 equivalence
0x44, 0x44, 0x5F, 0x44, 0x44, // 0xF1 plus minus
0x40, 0x51, 0x4A, 0x44, 0x40, // 0xF2 greater or equal
0x40, 0x44, 0x4A, 0x51, 0x40, // 0xF3 less or equal
0x00, 0x00, 0xFF, 0x01, 0x03, // 0xF4
0xE0, 0x80, 0xFF, 0x00, 0x00, // 0xF5
0x08, 0x08, 0x6B, 0x6B, 0x08, // 0xF6 divided by
0x36, 0x12, 0x36, 0x24, 0x36, // 0xF7 approx
0x06, 0x0F, 0x09, 0x0F, 0x06, // 0xF8 degree
0x00, 0x00, 0x18, 0x18, 0x00, // 0xF9 big dot
0x00, 0x00, 0x10, 0x10, 0x00, // 0xFA small dot
0x30, 0x40, 0xFF, 0x01, 0x01, // 0xFB square root
0x00, 0x1F, 0x01, 0x01, 0x1E, // 0xFC
0x00, 0x19, 0x1D, 0x17, 0x12, // 0xFD power of two
0x00, 0x3C, 0x3C, 0x3C, 0x3C, // 0xFE blob
//0x00, 0x00, 0x00, 0x60, 0x60, // 0xFF: Decimal point: 4 points
0x00, 0x00, 0x00, 0x00, 0x40, // 0xFF: Decimal point, only 1 point
};
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