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#include <Wire.h>
#include <AT24C32.h>
// init extended ascii font [https://github.com/ecraven/g13/blob/815e0001cb5e24a184186506d2c95f4171e48547/g13_fonts.cc]
// other font: [https://github.com/AdamCDunlap/arduino/blob/940c9db5cbeb55ffcba3661697cf0495dd54f8c2/libraries/LEDArray/includes/characters.h]
// other font: [https://github.com/basti79/LCD-fonts/blob/master/5x8_vertikal_LSB_1.h]
uint8_t ascii_font[256][5] = { {0x00, 0x00, 0x00, 0x00, 0x00}, // 0x00
{0x1E, 0x35, 0x31, 0x35, 0x1E}, // 0x01
{0x1E, 0x35, 0x37, 0x35, 0x1E}, // 0x02
{0x0E, 0x1F, 0x3E, 0x1F, 0x0E}, // 0x03
{0x08, 0x1C, 0x7F, 0x1C, 0x08}, // 0x04
{0x18, 0x4A, 0x7F, 0x4A, 0x18}, // 0x05
{0x1C, 0x4E, 0x7F, 0x4E, 0x1C}, // 0x06
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x07
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x08
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x09
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0A
{0x38, 0x44, 0x44, 0x47, 0x3B}, // 0x0B
{0x0E, 0x51, 0xF1, 0x51, 0x0E}, // 0x0C
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x0D
{0x60, 0x7E, 0x02, 0x33, 0x3F}, // 0x0E
{0x2A, 0x1C, 0x36, 0x1C, 0x2A}, // 0x0F
{0x3E, 0x1C, 0x1C, 0x08, 0x08}, // 0x10
{0x08, 0x08, 0x1C, 0x1C, 0x3E}, // 0x11
{0x00, 0x22, 0x7F, 0x22, 0x00}, // 0x12
{0x00, 0x2E, 0x00, 0x2E, 0x00}, // 0x13
{0x06, 0x7F, 0x01, 0x7F, 0x00}, // 0x14
{0x00, 0x4A, 0x55, 0x29, 0x00}, // 0x15
{0x00, 0x18, 0x18, 0x18, 0x18}, // 0x16
{0x00, 0x4A, 0x5F, 0x4A, 0x00}, // 0x17
{0x00, 0x02, 0x7F, 0x02, 0x00}, // 0x18
{0x00, 0x20, 0x7F, 0x20, 0x00}, // 0x19
{0x00, 0x08, 0x08, 0x1C, 0x08}, // 0x1A
{0x00, 0x08, 0x1C, 0x08, 0x08}, // 0x1B
{0x00, 0x3C, 0x20, 0x20, 0x20}, // 0x1C
{0x08, 0x1C, 0x08, 0x1C, 0x08}, // 0x1D
{0x20, 0x38, 0x3E, 0x38, 0x20}, // 0x1E
{0x02, 0x0E, 0x3E, 0x0E, 0x02}, // 0x1F
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x20 (Space)
{0x00, 0x00, 0x9E, 0x00, 0x00}, // 0x21 !
{0x00, 0x0E, 0x00, 0x0E, 0x00}, // 0x22 "
{0x28, 0xFE, 0x28, 0xFE, 0x28}, // 0x23 #
{0x48, 0x54, 0xFE, 0x54, 0x24}, // 0x24 $
{0x46, 0x26, 0x10, 0xC8, 0xC4}, // 0x25 %
{0x6C, 0x92, 0xAA, 0x44, 0xA0}, // 0x26 &
{0x00, 0x0A, 0x06, 0x00, 0x00}, // 0x27 '
{0x00, 0x38, 0x44, 0x82, 0x00}, // 0x28 (
{0x00, 0x82, 0x44, 0x38, 0x00}, // 0x29 )
{0x10, 0x54, 0x38, 0x54, 0x10}, // 0x2A *
{0x10, 0x10, 0x7C, 0x10, 0x10}, // 0x2B +
{0x00, 0xA0, 0x60, 0x00, 0x00}, // 0x2C ,
{0x10, 0x10, 0x10, 0x10, 0x10}, // 0x2D -
{0x00, 0x60, 0x60, 0x00, 0x00}, // 0x2E .
{0x40, 0x20, 0x10, 0x08, 0x04}, // 0x2F /
{0x7C, 0xA2, 0x92, 0x8A, 0x7C}, // 0x30 0
{0x00, 0x84, 0xFE, 0x80, 0x00}, // 0x31 1
{0x84, 0xC2, 0xA2, 0x92, 0x8C}, // 0x32 2
{0x42, 0x82, 0x8A, 0x96, 0x62}, // 0x33 3
{0x30, 0x28, 0x24, 0xFE, 0x20}, // 0x34 4
{0x4E, 0x8A, 0x8A, 0x8A, 0x72}, // 0x35 5
{0x78, 0x94, 0x92, 0x92, 0x60}, // 0x36 6
{0x02, 0xE2, 0x12, 0x0A, 0x06}, // 0x37 7
{0x6C, 0x92, 0x92, 0x92, 0x6C}, // 0x38 8
{0x0C, 0x92, 0x92, 0x52, 0x3C}, // 0x39 9
{0x00, 0x6C, 0x6C, 0x00, 0x00}, // 0x3A :
{0x00, 0xAC, 0x6C, 0x00, 0x00}, // 0x3B ;
{0x00, 0x10, 0x28, 0x44, 0x82}, // 0x3C <
{0x28, 0x28, 0x28, 0x28, 0x28}, // 0x3D =
{0x82, 0x44, 0x28, 0x10, 0x00}, // 0x3E >
{0x04, 0x02, 0xA2, 0x12, 0x0C}, // 0x3F ?
{0x64, 0x92, 0xF2, 0x82, 0x7C}, // 0x40 @
{0xFC, 0x22, 0x22, 0x22, 0xFC}, // 0x41 A
{0xFE, 0x92, 0x92, 0x92, 0x6C}, // 0x42 B
{0x7C, 0x82, 0x82, 0x82, 0x44}, // 0x43 C
{0xFE, 0x82, 0x82, 0x44, 0x38}, // 0x44 D
{0xFE, 0x92, 0x92, 0x92, 0x82}, // 0x45 E
{0xFE, 0x12, 0x12, 0x02, 0x02}, // 0x46 F
{0x7C, 0x82, 0x82, 0xA2, 0x64}, // 0x47 G
{0xFE, 0x10, 0x10, 0x10, 0xFE}, // 0x48 H
{0x00, 0x82, 0xFE, 0x82, 0x00}, // 0x49 I
{0x40, 0x80, 0x82, 0x7E, 0x02}, // 0x4A J
{0xFE, 0x10, 0x28, 0x44, 0x82}, // 0x4B K
{0xFE, 0x80, 0x80, 0x80, 0x80}, // 0x4C L
{0xFE, 0x04, 0x08, 0x04, 0xFE}, // 0x4D M
{0xFE, 0x08, 0x10, 0x20, 0xFE}, // 0x4E N
{0x7C, 0x82, 0x82, 0x82, 0x7C}, // 0x4F O
{0xFE, 0x12, 0x12, 0x12, 0x0C}, // 0x50 P
{0x7C, 0x82, 0xA2, 0x42, 0xBC}, // 0x51 Q
{0xFE, 0x12, 0x32, 0x52, 0x8C}, // 0x52 R
{0x8C, 0x92, 0x92, 0x92, 0x62}, // 0x53 S
{0x02, 0x02, 0xFE, 0x02, 0x02}, // 0x54 T
{0x7E, 0x80, 0x80, 0x80, 0x7E}, // 0x55 U
{0x3E, 0x40, 0x80, 0x40, 0x3E}, // 0x56 V
{0xFE, 0x40, 0x30, 0x40, 0xFE}, // 0x57 W
{0xC6, 0x28, 0x10, 0x28, 0xC6}, // 0x58 X
{0x06, 0x08, 0xF0, 0x08, 0x06}, // 0x59 Y
{0xC2, 0xA2, 0x92, 0x8A, 0x86}, // 0x5A Z
{0x00, 0x00, 0xFE, 0x82, 0x82}, // 0x5B [
{0x04, 0x08, 0x10, 0x20, 0x40}, // 0x5C "\"
{0x82, 0x82, 0xFE, 0x00, 0x00}, // 0x5D ]
{0x08, 0x04, 0x02, 0x04, 0x08}, // 0x5E ^
{0x80, 0x80, 0x80, 0x80, 0x80}, // 0x5F _
{0x00, 0x02, 0x04, 0x08, 0x00}, // 0x60 `
{0x40, 0xA8, 0xA8, 0xA8, 0xF0}, // 0x61 a
{0xFE, 0x90, 0x88, 0x88, 0x70}, // 0x62 b
{0x70, 0x88, 0x88, 0x88, 0x40}, // 0x63 c
{0x70, 0x88, 0x88, 0x90, 0xFE}, // 0x64 d
{0x70, 0xA8, 0xA8, 0xA8, 0x30}, // 0x65 e
{0x10, 0xFC, 0x12, 0x02, 0x04}, // 0x66 f
{0x10, 0x28, 0xA8, 0xA8, 0x78}, // 0x67 g
{0xFE, 0x10, 0x08, 0x08, 0xF0}, // 0x68 h
{0x00, 0x88, 0xFA, 0x80, 0x00}, // 0x69 i
{0x40, 0x80, 0x88, 0x7A, 0x00}, // 0x6A j
{0x00, 0xFE, 0x20, 0x50, 0x88}, // 0x6B k
{0x00, 0x82, 0xFE, 0x80, 0x00}, // 0x6C l
{0xF8, 0x08, 0x30, 0x08, 0xF0}, // 0x6D m
{0xF8, 0x10, 0x08, 0x08, 0xF0}, // 0x6E n
{0x70, 0x88, 0x88, 0x88, 0x70}, // 0x6F o
{0xF8, 0x28, 0x28, 0x28, 0x10}, // 0x70 p
{0x10, 0x28, 0x28, 0x30, 0xF8}, // 0x71 q
{0xF8, 0x10, 0x08, 0x08, 0x10}, // 0x72 r
{0x90, 0xA8, 0xA8, 0xA8, 0x40}, // 0x73 s
{0x08, 0x7E, 0x88, 0x80, 0x40}, // 0x74 t
{0x78, 0x80, 0x80, 0x40, 0xF8}, // 0x75 u
{0x38, 0x40, 0x80, 0x40, 0x38}, // 0x76 v
{0x78, 0x80, 0x60, 0x80, 0x78}, // 0x77 w
{0x88, 0x50, 0x20, 0x50, 0x88}, // 0x78 x
{0x18, 0xA0, 0xA0, 0xA0, 0x78}, // 0x79 y
{0x88, 0xC8, 0xA8, 0x98, 0x88}, // 0x7A z
{0x00, 0x10, 0x6C, 0x82, 0x00}, // 0x7B {
{0x00, 0x00, 0xFE, 0x00, 0x00}, // 0x7C |
{0x00, 0x82, 0x6C, 0x10, 0x00}, // 0x7D }
{0x20, 0x10, 0x10, 0x20, 0x10}, // 0x7E
{0xF0, 0x88, 0x84, 0x88, 0xF0}, // 0x7F
{0x28, 0x7C, 0xAA, 0x82, 0x44}, // 0x80 €
{0xF0, 0x29, 0x27, 0x21, 0xFF}, // 0x81
{0x00, 0xA0, 0x60, 0x00, 0x00}, // 0x82 ‚
{0x40, 0x90, 0x7C, 0x12, 0x04}, // 0x83 ƒ
{0xC0, 0xA0, 0x00, 0xC0, 0xA0}, // 0x84 „
{0x80, 0x00, 0x80, 0x00, 0x80}, // 0x85 …
{0x00, 0x04, 0xFE, 0x04, 0x00}, // 0x86 †
{0x00, 0x44, 0xFE, 0x44, 0x00}, // 0x87 ‡
{0x00, 0x04, 0x02, 0x04, 0x00}, // 0x88 ˆ
{0xC3, 0xD3, 0x08, 0xC4, 0xC2}, // 0x89 ‰
{0x4C, 0x93, 0x92, 0x93, 0x64}, // 0x8A Š
{0x00, 0x10, 0x28, 0x00, 0x00}, // 0x8B ‹
{0x7C, 0x82, 0x82, 0x7C, 0x92}, // 0x8C Œ
{0x02, 0xFE, 0x90, 0x90, 0x60}, // 0x8D
{0xC2, 0xA3, 0x92, 0x8B, 0x86}, // 0x8E Ž
{0x44, 0x92, 0x8A, 0x92, 0x7C}, // 0x8F
{0x70, 0x88, 0x90, 0x60, 0x98}, // 0x90
{0x00, 0x02, 0x04, 0x08, 0x00}, // 0x91 ‘
{0x00, 0x08, 0x04, 0x02, 0x00}, // 0x92 ’
{0x02, 0x04, 0x0A, 0x04, 0x08}, // 0x93 “
{0x08, 0x04, 0x0A, 0x04, 0x02}, // 0x94 ”
{0x00, 0x38, 0x38, 0x38, 0x00}, // 0x95 •
{0x00, 0x10, 0x10, 0x10, 0x10}, // 0x96 –
{0x10, 0x10, 0x10, 0x10, 0x10}, // 0x97 —
{0x02, 0x01, 0x02, 0x04, 0x02}, // 0x98 ˜
{0xF1, 0x5B, 0x55, 0x51, 0x51}, // 0x99 ™
{0x90, 0xA9, 0xAA, 0xA9, 0x40}, // 0x9A š
{0x00, 0x88, 0x50, 0x20, 0x00}, // 0x9B ›
{0x70, 0x88, 0x70, 0xA8, 0xB0}, // 0x9C ϡ
{0x38, 0x7C, 0xF8, 0x7C, 0x38}, // 0x9D
{0x88, 0xC9, 0xAA, 0x99, 0x88}, // 0x9E ž
{0x1C, 0x21, 0xC0, 0x21, 0x1C}, // 0x9F Ÿ
{0x00, 0x00, 0x00, 0x00, 0x00}, // 0xA0
{0x00, 0x00, 0xF2, 0x00, 0x00}, // 0xA1 ¡
{0x38, 0x44, 0xFE, 0x44, 0x20}, // 0xA2 ¢
{0x90, 0x7C, 0x92, 0x82, 0x40}, // 0xA3 £
{0x44, 0x38, 0x28, 0x38, 0x44}, // 0xA4 ¤
{0x2A, 0x2C, 0xF8, 0x2C, 0x2A}, // 0xA5 ¥
{0x00, 0x00, 0xEE, 0x00, 0x00}, // 0xA6 ¦
{0x40, 0x94, 0xAA, 0x52, 0x04}, // 0xA7 §
{0x00, 0x02, 0x00, 0x02, 0x00}, // 0xA8 ¨
{0xFE, 0x82, 0xBA, 0x92, 0xFE}, // 0xA9 ©
{0x90, 0xAA, 0xAA, 0xAA, 0xBC}, // 0xAA ª
{0x20, 0x50, 0xA8, 0x50, 0x88}, // 0xAB «
{0x20, 0x20, 0x20, 0x20, 0xE0}, // 0xAC ¬
{0x20, 0x20, 0x20, 0x20, 0x20}, // 0xAD
{0xFE, 0x82, 0xCA, 0xA2, 0xFE}, // 0xAE ®
{0x02, 0x02, 0x02, 0x02, 0x02}, // 0xAF ¯
{0x0E, 0x11, 0x11, 0x0E, 0x00}, // 0xB0 °
{0x88, 0x88, 0xBE, 0x88, 0x88}, // 0xB1 ±
{0x12, 0x19, 0x15, 0x12, 0x00}, // 0xB2 ²
{0x11, 0x15, 0x15, 0x0A, 0x00}, // 0xB3 ³
{0x00, 0x08, 0x04, 0x02, 0x00}, // 0xB4 ´
{0xFE, 0x20, 0x20, 0x10, 0x3E}, // 0xB5 µ
{0x0C, 0x12, 0x12, 0xFE, 0xFE}, // 0xB6 ¶
{0x00, 0x30, 0x30, 0x00, 0x00}, // 0xB7 ·
{0x00, 0x80, 0xB0, 0x40, 0x00}, // 0xB8 ¸
{0x00, 0x02, 0x0F, 0x00, 0x00}, // 0xB9 ¹
{0x00, 0x02, 0x05, 0x02, 0x00}, // 0xBA º
{0x44, 0x28, 0x54, 0x28, 0x10}, // 0xBB »
{0x22, 0x1F, 0x68, 0x54, 0xFA}, // 0xBC ¼
{0x02, 0x1F, 0x90, 0xC8, 0xB0}, // 0xBD ½
{0x15, 0x1F, 0x60, 0x50, 0xF8}, // 0xBE ¾
{0x60, 0x90, 0x8A, 0x80, 0x40}, // 0xBF ¿
{0xF0, 0x29, 0x26, 0x28, 0xF0}, // 0xC0 À
{0xF0, 0x28, 0x26, 0x29, 0xF0}, // 0xC1 Á
{0xF0, 0x2A, 0x29, 0x2A, 0xF0}, // 0xC2 Â
{0xF2, 0x29, 0x29, 0x2A, 0xF1}, // 0xC3 Ã
{0xF0, 0x29, 0x24, 0x29, 0xF0}, // 0xC4 Ä
{0xF0, 0x2A, 0x2D, 0x2A, 0xF0}, // 0xC5 Å
{0xF8, 0x24, 0xFE, 0x92, 0x92}, // 0xC6 Æ
{0x1E, 0x21, 0xA1, 0xE1, 0x12}, // 0xC7 Ç
{0xF8, 0xA9, 0xAA, 0xA8, 0x88}, // 0xC8 È
{0xF8, 0xA8, 0xAA, 0xA9, 0x88}, // 0xC9 É
{0xF8, 0xAA, 0xA9, 0xAA, 0x88}, // 0xCA Ê
{0xF8, 0xAA, 0xA8, 0xAA, 0x88}, // 0xCB Ë
{0x00, 0x89, 0xFA, 0x88, 0x00}, // 0xCC Ì
{0x00, 0x88, 0xFA, 0x89, 0x00}, // 0xCD Í
{0x00, 0x8A, 0xF9, 0x8A, 0x00}, // 0xCE Î
{0x00, 0x8A, 0xF8, 0x8A, 0x00}, // 0xCF Ï
{0x10, 0xFE, 0x92, 0x82, 0x7C}, // 0xD0 Ð
{0xFA, 0x11, 0x21, 0x42, 0xF9}, // 0xD1 Ñ
{0x78, 0x85, 0x86, 0x84, 0x78}, // 0xD2 Ò
{0x78, 0x84, 0x86, 0x85, 0x78}, // 0xD3 Ó
{0x70, 0x8A, 0x89, 0x8A, 0x70}, // 0xD4 Ô
{0x72, 0x89, 0x89, 0x8A, 0x71}, // 0xD5 Õ
{0x78, 0x85, 0x84, 0x85, 0x78}, // 0xD6 Ö
{0x44, 0x28, 0x10, 0x28, 0x44}, // 0xD7 ×
{0x10, 0xAA, 0xFE, 0xAA, 0x10}, // 0xD8 Ø
{0x7C, 0x81, 0x82, 0x80, 0x7C}, // 0xD9 Ù
{0x7C, 0x80, 0x82, 0x81, 0x7C}, // 0xDA Ú
{0x78, 0x82, 0x81, 0x82, 0x78}, // 0xDB Û
{0x7C, 0x81, 0x80, 0x81, 0x7C}, // 0xDC Ü
{0x04, 0x08, 0xF2, 0x09, 0x04}, // 0xDD Ý
{0x81, 0xFF, 0x24, 0x24, 0x18}, // 0xDE Þ
{0x80, 0x7C, 0x92, 0x92, 0x6C}, // 0xDF ß
{0x40, 0xA9, 0xAA, 0xA8, 0xF0}, // 0xE0 à
{0x40, 0xA8, 0xAA, 0xA9, 0xF0}, // 0xE1 á
{0x40, 0xAA, 0xA9, 0xAA, 0xF0}, // 0xE2 â
{0x42, 0xA9, 0xA9, 0xAA, 0xF1}, // 0xE3 ã
{0x40, 0xAA, 0xA8, 0xAA, 0xF0}, // 0xE4 ä
{0x40, 0xAA, 0xAD, 0xAA, 0xF0}, // 0xE5 å
{0x64, 0x94, 0x78, 0x94, 0x58}, // 0xE6 æ
{0x18, 0x24, 0xA4, 0xE4, 0x10}, // 0xE7 ç
{0x70, 0xA9, 0xAA, 0xA8, 0x30}, // 0xE8 è
{0x70, 0xA8, 0xAA, 0xA9, 0x30}, // 0xE9 é
{0x70, 0xAA, 0xA9, 0xAA, 0x30}, // 0xEA ê
{0x70, 0xAA, 0xA8, 0xAA, 0x30}, // 0xEB ë
{0x00, 0x91, 0xFA, 0x80, 0x00}, // 0xEC ì
{0x00, 0x90, 0xFA, 0x81, 0x00}, // 0xED í
{0x00, 0x92, 0xF9, 0x82, 0x00}, // 0xEE î
{0x00, 0x92, 0xF8, 0x82, 0x00}, // 0xEF ï
{0x4A, 0xA4, 0xAA, 0xB0, 0x60}, // 0xF0 ð
{0xFA, 0x11, 0x09, 0x0A, 0xF1}, // 0xF1 ñ
{0x70, 0x89, 0x8A, 0x88, 0x70}, // 0xF2 ò
{0x70, 0x88, 0x8A, 0x89, 0x70}, // 0xF3 ó
{0x60, 0x94, 0x92, 0x94, 0x60}, // 0xF4 ô
{0x64, 0x92, 0x92, 0x94, 0x62}, // 0xF5 õ
{0x70, 0x8A, 0x88, 0x8A, 0x70}, // 0xF6 ö
{0x10, 0x10, 0x54, 0x10, 0x10}, // 0xF7 ÷
{0x10, 0xA8, 0x7C, 0x2A, 0x10}, // 0xF8 ø
{0x78, 0x81, 0x82, 0x40, 0xF8}, // 0xF9 ù
{0x78, 0x80, 0x82, 0x41, 0xF8}, // 0xFA ú
{0x78, 0x82, 0x81, 0x42, 0xF8}, // 0xFB û
{0x78, 0x82, 0x80, 0x42, 0xF8}, // 0xFC ü
{0x18, 0xA0, 0xA4, 0xA2, 0x78}, // 0xFD v
{0x00, 0x82, 0xFE, 0xA8, 0x10}, // 0xFE þ
{0x18, 0xA2, 0xA0, 0xA2, 0x78} // 0xFF ÿ
};
AT24C32 at24c32;uint8_t data;
/**
setup */void setup(){ Serial.begin(115200);
at24c32.begin();
for (int ascii = 0; ascii < 256; ascii++) { for (int b = 0; b < 5; b++) { at24c32.write(ascii * 5 + b, ascii_font[ascii][b]); Serial.print(ascii * 5 + b); if (at24c32.read(ascii * 5 + b) == ascii_font[ascii][b]) { Serial.println(F(": check")); } else { Serial.print(F(": ERROR! ")); Serial.print(ascii_font[ascii][b]); Serial.print(F(" - ")); Serial.println(at24c32.read(ascii * 5 + b)); } } }
Serial.println(F("ascii chars written!"));
for (int i = 0; i < 256; i++) { at24c32.write(TEXT_ADDRESS + i, char('A')); }
Serial.println(F("Text resets to 'A'"));
String text = "inital text";
at24c32.write(TEXT_SIZE_ADDRESS, text.length());
for (int i = 0; i < text.length(); i++) { at24c32.write(TEXT_ADDRESS + i, char(text[i])); }
Serial.println(F("text written!"));}
/**
loop */void loop(){ // read text
uint8_t length = at24c32.read(TEXT_SIZE_ADDRESS);
for (uint8_t i = 0; i < length; i++) { Serial.print(char(at24c32.read(TEXT_ADDRESS + i))); }
Serial.println();
delay(2000);}
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