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Author Topic: Scrolling LED matrix display - Parola for Arduino  (Read 27383 times)
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Dear wabbitguy,

That's right, just turn the switch "USE_PAROLA_HW" in the library to work properly with the Chinese Ebay modules.

But, I thought the "right" position of these modules was with Maxim chip down (since the module inputs are in this position and exits in the opposite position, at least for a beginner putting modules on a breadboard) and therefore the function "USE_FONT_ADJUST" helped to invert the position of letters, if not in this way, what is the use of this function?, I activated this switch in the library but did not get any change in the orientation of letters on the display.

There may be no "right" position of use of these modules, to add some pictures of the implementation with them in the documentation, would help clarify questions from beginners.

Here is a link with a Youtube video of my modules: http://youtu.be/_2h1B-6HM6A

Thanks!
« Last Edit: January 28, 2014, 12:35:55 pm by Karontes » Logged

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Quote
"USE_FONT_ADJUST" helped to invert the position of letters

If you read the MD_MAX72xx library documentation, this is an engineering function used when modifying the library. Inverting the letters does not reverse the scrolling, for example, so you end up with a mess. The use of This is for people who may want to mount the modules vertically and want to rotate the letters so that they appear correct when the modules are mounted in that orientation. For normal operation, this should not be necessary.

Can you confirm that you found and read the library documentation? I am just interested as my impression is most people just jump in and run the examples.

Quote
to add some pictures of the implementation with them in the documentation, would help clarify questions from beginners

The picture is there in the MD_MAX72xx library documentation, so the question above is relevant here.

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Hi Marco,
First, Thanks for a great project. I used the http://www.icstation.com/product_info.php?products_id=2609 to make a display. They are good because the PCB is exactly the same size as the led matrix. I used the "upside down" version of the font in MD_MAX72xx_font.cpp to get the text shown properly.
Regards,
Hamilton
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in the beganing i faced some problem but now every thing is ok except one.
How i can display text in Arabic language ?
« Last Edit: February 05, 2014, 10:53:35 am by alhootti » Logged

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Displaying any text requires a font in that language. You can change the font to a different language by modifying the font file in the MD_MAX72xx library. Read the library documentation as it has a small section on the font format. If you do create an arabic font, send me the font file and I can include it in the next version of the software.
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Marco you are great man.
Is there a software to help me to create arabic font?
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No, you will need to code the font manually at this stage.
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My dear
i tried too much time but not succeeded
however
the folowing is arabic font code 8*8:

Code:
0x00,0x04,0x06,0x1D,0x25,0x24,0x20,0x20, //129/ --> پ
0x20,0x20,0x20,0x20,0xA0,0x20,0x28,0x30, //130/ --> ‚
0x00,0x30,0x28,0x20,0xA0,0x20,0x30,0x20, //132/ --> „
0x20,0x20,0x20,0x22,0x20,0x22,0x28,0x30, //133/ --> …
0x20,0x20,0x20,0x22,0x21,0x22,0x28,0x30, //136/ --> ˆ
0x20,0x20,0x20,0x22,0x31,0x22,0x20,0x20, //137/ --> ‰
0x00,0x30,0x28,0x22,0x21,0x22,0x30,0x20, //138/ --> ٹ
0x20,0x20,0x28,0x28,0x28,0xB0,0x20,0x20, //139/ --> ‹
0x20,0x20,0x28,0x2A,0x28,0x30,0x20,0x20, //141/ --> چ
0x00,0x24,0x24,0x24,0x38,0x20,0x20,0x20, //142/ --> ژ
0x00,0x24,0x25,0x24,0x38,0x20,0x20,0x20, //143/ --> ڈ
0x00,0x80,0x80,0x40,0x30,0x20,0x20,0x20, //144/ --> گ
0x00,0x80,0x80,0x40,0x34,0x20,0x20,0x20, //145/ --> ‘
0x20,0x20,0x20,0x38,0x20,0x38,0x20,0x18, //146/ --> ’
0x20,0x20,0x38,0x20,0x38,0x20,0x38,0x20, //147/ --> “
0x60,0x80,0x80,0x78,0x20,0x38,0x20,0x18, //148/ --> ”
0x20,0x20,0x20,0x38,0x22,0x39,0x22,0x18, //149/ --> •
0x20,0x20,0x38,0x22,0x39,0x22,0x38,0x20, //150/ --> –
0x60,0x80,0x80,0x78,0x22,0x39,0x22,0x18, //151/ --> —
0x20,0x20,0x30,0x20,0x30,0x28,0x28,0x18, //152/ --> ک
0x60,0x80,0x80,0x60,0x30,0x28,0x28,0x38, //154/ --> ڑ
0x20,0x20,0x30,0x20,0x30,0x28,0x2A,0x18, //155/ --> ›
0x60,0x80,0x80,0x60,0x30,0x28,0x2A,0x38, //157/ --> ‌
0x20,0x20,0x3E,0x30,0x28,0x28,0x38,0x20, //158/ --> ‍
0x20,0x20,0x3E,0x30,0x28,0x2A,0x38,0x20, //159/ --> ں
0x20,0x20,0x20,0x20,0x30,0x28,0x28,0x00, //160/ -->  
0x20,0x20,0x20,0x30,0x28,0x28,0x20,0x20, //161/ --> ،
0x20,0x20,0x20,0x20,0x30,0x28,0x2A,0x30, //166/ --> ¦
0x20,0x20,0x30,0x2A,0x28,0x32,0x20,0x20, //170/ --> ھ
0x60,0x80,0x80,0xB2,0xA8,0x7A,0x20,0x20, //171/ --> «
0x22,0x25,0x25,0x25,0x25,0x25,0x25,0x19, //172/ --> ¬
0x20,0x20,0x20,0x1C,0x22,0x21,0x20,0x20, //173/ --> ­
0x20,0x20,0x20,0x20,0x20,0x20,0x1F,0x00, //175/ -->
0x20,0x20,0x20,0x20,0x1F,0x20,0x20,0x20, //176/ --> °
0x00,0x30,0x40,0x40,0x3F,0x20,0x20,0x20, //177/ --> ±
0x20,0x20,0x20,0x20,0x30,0x48,0x48,0x30, //178/ --> ²
0x20,0x20,0x30,0x48,0x48,0x30,0x20,0x20, //179/ --> ³
0x80,0x40,0x30,0x48,0x48,0x30,0x20,0x20, //180/ --> ´
0x20,0x20,0x20,0x20,0x22,0x20,0x18,0x00, //181/ --> µ
0x20,0x20,0x20,0x20,0x1A,0x20,0x20,0x20, //182/ --> ¶
0x30,0x40,0x44,0x40,0x30,0x20,0x20,0x20, //183/ --> ·
0x20,0x20,0x20,0x30,0x28,0x3A,0x2C,0x18, //184/ --> ¸
0x20,0x20,0x30,0x28,0x3A,0x2C,0x38,0x20, //185/ --> ¹
0x00,0x18,0x14,0x14,0x18,0x20,0x20,0x20, //186/ --> ؛
0x00,0x21,0x22,0x24,0x28,0x10,0x0F,0x00, //187/ --> »
0x00,0xB0,0xA8,0x78,0x20,0x20,0x20,0x20, //188/ --> ¼
0x20,0x20,0x20,0xA0,0x20,0xA0,0x28,0x30, //189/ --> ½
0x20,0x20,0x20,0xA0,0x30,0xA0,0x20,0x20, //190/ --> ¾
0x00,0x60,0x80,0x80,0xA0,0x50,0x10,0x20, //191/ --> ؟
0x00,0x1E,0x20,0x20,0x20,0x20,0x20,0x20, //192/ --> ہ
0x00,0x20,0x30,0x28,0x28,0x20,0x00,0x00, //193/ --> ء
0x00,0x04,0x02,0x02,0x3A,0x02,0x02,0x01, //194/ --> آ
0x00,0x00,0x04,0x06,0x3D,0x05,0x04,0x00, //195/ --> أ
0x00,0x00,0x04,0xB6,0xAD,0x7D,0x04,0x00, //196/ --> ؤ
0x00,0x00,0x80,0xC0,0xBF,0xA0,0x80,0x00, //197/ --> إ
0x04,0x66,0x85,0x95,0xA8,0xA8,0x48,0x00, //198/ --> ئ
0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00, //199/ --> ا
0x00,0x30,0x28,0x20,0xA0,0x20,0x28,0x30, //200/ --> ب
0x00,0x00,0x30,0x2A,0x28,0x32,0x00,0x00, //201/ --> ة
0x00,0x30,0x28,0x22,0x20,0x22,0x28,0x30, //202/ --> ت
0x00,0x30,0x28,0x22,0x21,0x22,0x28,0x30, //203/ --> ث
0x00,0xC0,0xA8,0xA8,0x28,0xB0,0x20,0x20, //204/ --> ج
0x00,0xC0,0xA8,0xA8,0xA8,0x30,0x20,0x20, //205/ --> ح
0x00,0xC0,0xA8,0xAA,0x28,0x30,0x20,0x20, //206/ --> خ
0x00,0x00,0x24,0x24,0x24,0x38,0x00,0x00, //207/ --> د
0x00,0x00,0x24,0x25,0x24,0x38,0x00,0x00, //208/ --> ذ
0x00,0x80,0x80,0x40,0x30,0x00,0x00,0x00, //209/ --> ر
0x00,0x00,0x80,0x80,0x40,0x34,0x00,0x00, //210/ --> ز
0x60,0x80,0x80,0x78,0x20,0x38,0x20,0x18, //211/ --> س
0x60,0x80,0x80,0x78,0x22,0x39,0x22,0x18, //212/ --> ش
0x60,0x80,0x80,0x60,0x30,0x28,0x28,0x18, //213/ --> ص
0x60,0x80,0x80,0x60,0x30,0x28,0x2A,0x18, //214/ --> ض
0x00,0x22,0x14,0x08,0x14,0x22,0x00,0x00, //215/ --> ×
0x20,0x20,0x3E,0x30,0x28,0x28,0x18,0x00, //216/ --> ط
0x20,0x20,0x3E,0x30,0x28,0x2A,0x18,0x00, //217/ --> ظ
0x00,0x00,0x40,0xA0,0xB0,0x28,0x28,0x00, //218/ --> ع
0x00,0x00,0x40,0xA0,0xB0,0x2A,0x28,0x00, //219/ --> غ
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20, //220/ --> ـ
0x00,0x18,0x20,0x20,0x30,0x28,0x2A,0x30, //221/ --> ف
0x00,0x60,0x80,0x80,0xB2,0xA8,0x7A,0x00, //222/ --> ق
0x00,0x30,0x28,0x2C,0x2A,0x20,0x3F,0x00, //223/ --> ك
0x00,0x40,0xA9,0xAA,0xA8,0xF0,0x00,0x00, //224/ --> à
0x00,0x00,0x60,0x80,0x80,0x7E,0x00,0x00, //225/ --> ل
0x00,0x40,0xAA,0xA9,0xAA,0xF0,0x00,0x00, //226/ --> â
0x00,0x00,0xC0,0x20,0x30,0x28,0x28,0x30, //227/ --> م
0x00,0x00,0x60,0x80,0x88,0x80,0x60,0x00, //228/ --> ن
0x00,0x00,0x30,0x28,0x28,0x30,0x00,0x00, //229/ --> ه
0x00,0x00,0x00,0xB0,0xA8,0x78,0x00,0x00, //230/ --> و
0x00,0x30,0x40,0x40,0x50,0x28,0x08,0x00, //236/ --> ى
0x00,0x30,0xC0,0x40,0xD0,0x28,0x08,0x00, //237/ --> ي
0x00,0x00,0x02,0x79,0x02,0x00,0x00,0x00, //238/ --> î
0x00,0x00,0x02,0x78,0x02,0x00,0x00,0x00, //239/ --> ï
0x00,0x00,0x00,0x00,0x00,0x05,0x05,0x05, //240/ --> ً
0x00,0x00,0x00,0x04,0x03,0x0B,0x06,0x06, //241/ --> ٌ
0xA0,0xA0,0xA0,0x00,0x00,0x00,0x00,0x00, //242/ --> ٍ
0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x00, //243/ --> َ
0x00,0x40,0x60,0x50,0x48,0x50,0x40,0x40 //255/ --> ے
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I have developed a pretty 'quick and dirty' font editor, as there seems to have been a number of questions around this aspect of the Parola software (file attached).

It is an Excel VBA program that pops up a form for editing each character (press the button next to each Id in the "Work Sheet" tab). Not fully completed yet but it does make the whole font editing/creation thing a lot easier. Happy for any feedback on bugs and/or functionality at this stage (bugs get fixed, functionality may wait).

The idea with this is that it creates the code to populate the font array via a simple cut and paste and the end of an editing session. The font data can be left in the excel workbook and copied to another sheet for future reference (as is the case for the standard font at the moment).

@alhootti - can you please check the arabic characters - I actually can't tell if they are correct. If there are errors in the import, can you please correct and send it back to me via PM. Arabic characters are in the Work sheet font at ASCII 129 onwards.

Anyone else who has created symbols/fonts, please let me know. This tool and any contributions will be in the next release.

* Parola MD_MAX72xx Font Builder v1.xlsm (399.7 KB - downloaded 22 times.)
« Last Edit: February 09, 2014, 02:37:13 am by marco_c » Logged

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Hi Marco.
I just saw your font editor. Hey do you ever sleep  smiley-lol I could not find anything on the Instructions tab. Thanks for another string for the Parola bow.
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Hi Pedro - Instructions to come. As usual the documentation plays catchup.

Red area - no editing allowed. Green area - user changeable. Orange area - output for code arrays.
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Thanks Marco.
I just thought that I would let you know in case there was a problem
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Thank you Marco.
I will do .
Actionally, now im out of my town when i go back to my town i will keep you posted.
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Just updated the font builder file in previous post. Should be finished now - including Instructions :-)

The file currently has Katakana (Japanese), Arabic to be checked, standard font and a bunch of symbols. I am looking for a good source for a greek alphabet in dot form - any ideas?
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Marco I have some Questions:
when i cut and paste code it show like this:
 
Code:
uint8_t  _fontname[] PROGMEM = {
"0, // 0 - Empty Cell"
"5, 62, 91, 79, 91, 62, // 1 - Sad Smiley"
"5, 62, 107, 79, 107, 62, // 2 - Happy Smiley"
"5, 28, 62, 124, 62, 28, // 3 - Heart"
"5, 24, 60, 126, 60, 24, // 4 - Diamond"
"5, 28, 87, 125, 87, 28, // 5 - Clubs"
"5, 28, 94, 127, 94, 28, // 6 - Spades"
"4, 0, 24, 60, 24, // 7 - Bullet Point"
"5, 255, 231, 195, 231, 255, // 8 - Rev Bullet Point"
"4, 0, 24, 36, 24, // 9 - Hollow Bullet Point"
"5, 255, 231, 219, 231, 255, // 10 - Rev Hollow BP"
"5, 48, 72, 58, 6, 14, // 11 - Male"
"5, 38, 41, 121, 41, 38, // 12 - Female"
"5, 64, 127, 5, 5, 7, // 13 - Music Note 1"
"5, 64, 127, 5, 37, 63, // 14 - Music Note 2"
"5, 90, 60, 231, 60, 90, // 15 - Snowflake"
"5, 127, 62, 28, 28, 8, // 16 - Right Pointer"
"5, 8, 28, 28, 62, 127, // 17 - Left Pointer"
"5, 20, 34, 127, 34, 20, // 18 - UpDown Arrows"
"5, 95, 95, 0, 95, 95, // 19 - Double Exclamation"
"5, 6, 9, 127, 1, 127, // 20 - Paragraph Mark"
"4, 102, 137, 149, 106, // 21 - Section Mark"
"5, 96, 96, 96, 96, 96, // 22 - Double Underline"
"5, 148, 162, 255, 162, 148, // 23 - UpDown Underlined"
"5, 8, 4, 126, 4, 8, // 24 - Up Arrow"
"5, 16, 32, 126, 32, 16, // 25 - Down Arrow"
"5, 8, 8, 42, 28, 8, // 26 - Right Arrow"
"5, 8, 28, 42, 8, 8, // 27 - Left Arrow"
"5, 30, 16, 16, 16, 16, // 28 - Angled"
"5, 12, 30, 12, 30, 12, // 29 - Squashed #"
"5, 48, 56, 62, 56, 48, // 30 - Up Pointer"
"5, 6, 14, 62, 14, 6, // 31 - Down Pointer"
"2, 0, 0, // 32 - Space"
"1, 95, // 33 - !"
"3, 7, 0, 7, // 34 - """
"5, 20, 127, 20, 127, 20, // 35 - #"
"5, 36, 42, 127, 42, 18, // 36 - $"
"5, 35, 19, 8, 100, 98, // 37 - %"
"5, 54, 73, 86, 32, 80, // 38 - &"
"3, 8, 7, 3, // 39 - '"
"3, 28, 34, 65, // 40 - ("
"3, 65, 34, 28, // 41 - )"
"5, 42, 28, 127, 28, 42, // 42 - *"
"5, 8, 8, 62, 8, 8, // 43 - +"
"3, 128, 112, 48, // 44 - ,"
"5, 8, 8, 8, 8, 8, // 45 - -"
"2, 96, 96, // 46 - ."
"5, 32, 16, 8, 4, 2, // 47 - /"
"5, 62, 81, 73, 69, 62, // 48 - 0"
"3, 66, 127, 64, // 49 - 1"
"5, 114, 73, 73, 73, 70, // 50 - 2"
"5, 33, 65, 73, 77, 51, // 51 - 3"
"5, 24, 20, 18, 127, 16, // 52 - 4"
"5, 39, 69, 69, 69, 57, // 53 - 5"
"5, 60, 74, 73, 73, 49, // 54 - 6"
"5, 65, 33, 17, 9, 7, // 55 - 7"
"5, 54, 73, 73, 73, 54, // 56 - 8"
"5, 70, 73, 73, 41, 30, // 57 - 9"
"1, 20, // 58 - :"
"2, 128, 104, // 59 - ;"
"4, 8, 20, 34, 65, // 60 - <"
"5, 20, 20, 20, 20, 20, // 61 - ="
"4, 65, 34, 20, 8, // 62 - >"
"5, 2, 1, 89, 9, 6, // 63 - ?"
"8, 32, 32, 32, 32, 160, 32, 40, 48, // 130 - ب"
"8, 0, 48, 40, 32, 160, 32, 48, 32, // 131"
"8, 32, 32, 34, 32, 34, 32, 40, 48, // 132 - ت"
"8, 32, 32, 32, 34, 33, 34, 40, 48, // 133 - ث"
"8, 32, 32, 32, 34, 49, 34, 32, 32, // 134 - ـثـ"
"8, 0, 48, 40, 34, 33, 34, 48, 32, // 135 - ـث"
"8, 32, 32, 40, 40, 40, 176, 32, 32, // 136 - جـ"
"8, 32, 32, 40, 42, 40, 48, 32, 32, // 137 - خـ"
"8, 0, 36, 36, 36, 56, 32, 32, 32, // 138 - ـد"
"8, 0, 36, 37, 36, 56, 32, 32, 32, // 139 - ـذ"
"8, 0, 128, 128, 64, 48, 32, 32, 32, // 140 - ـر"
"8, 0, 128, 128, 64, 52, 32, 32, 32, // 141 - ـز"
"8, 32, 32, 32, 56, 32, 56, 32, 24, // 142 - سـ"
"8, 32, 32, 56, 32, 56, 32, 56, 32, // 143 - ـسـ"
"8, 96, 128, 128, 120, 32, 56, 32, 24, // 144 - س"
"8, 32, 32, 32, 56, 34, 57, 34, 24, // 145 - شـ"
"8, 32, 32, 56, 34, 57, 34, 56, 32, // 146 - ـشـ"
"8, 96, 128, 128, 120, 34, 57, 34, 24, // 147 - ش"
"8, 32, 32, 48, 32, 48, 40, 40, 24, // 148 - صـ"
"8, 96, 128, 128, 96, 48, 40, 40, 56, // 149 - ص"
"8, 32, 32, 48, 32, 48, 40, 42, 24, // 150 - ضـ"
"8, 96, 128, 128, 96, 48, 40, 42, 56, // 151 - ض"
"8, 32, 32, 62, 48, 40, 40, 56, 32, // 152 - ـط"
"8, 32, 32, 62, 48, 40, 42, 56, 32, // 153 - ـظ"
"7, 32, 32, 32, 32, 48, 40, 40, // 154 - عـ"
"8, 32, 32, 40, 36, 52, 44, 32, 32, // 155 - ـعـ"
"8, 32, 32, 32, 32, 48, 40, 42, 48, // 156 - فـ"
"8, 32, 32, 48, 42, 40, 50, 32, 32, // 157 - ـقـ"
"8, 96, 128, 128, 178, 168, 122, 32, 32, // 158 - ـق"
"8, 0, 40, 44, 42, 42, 32, 32, 31, // 159 - ك"
"8, 32, 32, 32, 28, 34, 33, 33, 33, // 160 - ـك"
"7, 32, 32, 32, 32, 32, 32, 31, // 161 - لـ"
"8, 32, 32, 32, 32, 31, 32, 32, 32, // 162 - ـلـ"
"8, 0, 48, 64, 64, 63, 32, 32, 32, // 163"
"8, 32, 32, 32, 32, 48, 72, 72, 48, // 164"
"8, 32, 32, 48, 72, 72, 48, 32, 32, // 165"
"8, 128, 64, 48, 72, 72, 48, 32, 32, // 166"
"7, 32, 32, 32, 32, 34, 32, 24, // 167"
"8, 32, 32, 32, 32, 26, 32, 32, 32, // 168"
"8, 48, 64, 68, 64, 48, 32, 32, 32, // 169"
"8, 32, 32, 32, 48, 40, 58, 44, 24, // 170"
"8, 32, 32, 48, 40, 58, 44, 56, 32, // 171"
"8, 0, 24, 20, 20, 24, 32, 32, 32, // 172"
"7, 0, 33, 34, 36, 40, 16, 15, // 173"
"8, 0, 176, 168, 120, 32, 32, 32, 32, // 174"
"8, 32, 32, 32, 160, 32, 160, 40, 48, // 175"
"8, 32, 32, 32, 160, 48, 160, 32, 32, // 176"
"8, 0, 96, 128, 128, 160, 80, 16, 32, // 177"
"8, 0, 30, 32, 32, 32, 32, 32, 32, // 178"
"6, 0, 32, 48, 40, 40, 32, // 179"
"8, 0, 4, 2, 2, 58, 2, 2, 1, // 180"
"7, 0, 0, 4, 6, 61, 5, 4, // 181"
"7, 0, 0, 4, 182, 173, 125, 4, // 182"
"7, 0, 0, 128, 192, 191, 160, 128, // 183"
"7, 4, 102, 133, 149, 168, 168, 72, // 184"
"4, 0, 0, 0, 63, // 185"
"8, 0, 48, 40, 32, 160, 32, 40, 48, // 186"
"6, 0, 0, 48, 42, 40, 50, // 187"
"8, 0, 48, 40, 34, 32, 34, 40, 48, // 188"
"8, 0, 48, 40, 34, 33, 34, 40, 48, // 189"
"8, 0, 192, 168, 168, 40, 176, 32, 32, // 190"
"8, 0, 192, 168, 168, 168, 48, 32, 32, // 191"
"8, 0, 192, 168, 170, 40, 48, 32, 32, // 192"
"6, 0, 0, 36, 36, 36, 56, // 193"
"6, 0, 0, 36, 37, 36, 56, // 194"
"5, 0, 128, 128, 64, 48, // 195"
"6, 0, 0, 128, 128, 64, 52, // 196"
"8, 96, 128, 128, 120, 32, 56, 32, 24, // 197"
"8, 96, 128, 128, 120, 34, 57, 34, 24, // 198"
"8, 96, 128, 128, 96, 48, 40, 40, 24, // 199"
"8, 96, 128, 128, 96, 48, 40, 42, 24, // 200"
"6, 0, 34, 20, 8, 20, 34, // 201"
"7, 32, 32, 62, 48, 40, 40, 24, // 202"
"7, 32, 32, 62, 48, 40, 42, 24, // 203"
"7, 0, 0, 64, 160, 176, 40, 40, // 204"
"7, 0, 0, 64, 160, 176, 42, 40, // 205"
"8, 32, 32, 32, 32, 32, 32, 32, 32, // 206"
"8, 0, 24, 32, 32, 48, 40, 42, 48, // 207"
"7, 0, 96, 128, 128, 178, 168, 122, // 208"
"7, 0, 48, 40, 44, 42, 32, 63, // 209"
"6, 0, 64, 169, 170, 168, 240, // 210"
"6, 0, 0, 96, 128, 128, 126, // 211"
"6, 0, 64, 170, 169, 170, 240, // 212"
"8, 0, 0, 192, 32, 48, 40, 40, 48, // 213"
"7, 0, 0, 96, 128, 136, 128, 96, // 214"
"6, 0, 0, 48, 40, 40, 48, // 215"
"6, 0, 0, 0, 176, 168, 120, // 216"
"7, 0, 48, 64, 64, 80, 40, 8, // 217"
"7, 0, 48, 192, 64, 208, 40, 8, // 218"
"5, 0, 0, 2, 121, 2, // 219"
"5, 0, 0, 2, 120, 2, // 220"
"8, 0, 0, 0, 0, 0, 5, 5, 5, // 221"
"8, 0, 0, 0, 4, 3, 11, 6, 6, // 222"
"3, 160, 160, 160, // 223"
"6, 0, 0, 1, 1, 1, 1, // 224 - Beta"
"8, 0, 64, 96, 80, 72, 80, 64, 64, // 225 - Gamma"
"5, 2, 126, 2, 126, 2, // 226 - Pi"
"5, 99, 85, 73, 65, 99, // 227 - Sigma"
"5, 56, 68, 68, 60, 4, // 228 - Theta"
"5, 64, 126, 32, 30, 32, // 229 - mu"
"5, 6, 2, 126, 2, 2, // 230 - Tau"
"5, 153, 165, 231, 165, 153, // 231"
"5, 28, 42, 73, 42, 28, // 232"
"5, 76, 114, 1, 114, 76, // 233"
"5, 48, 74, 77, 77, 48, // 234"
"5, 48, 72, 120, 72, 48, // 235"
"5, 188, 98, 90, 70, 61, // 236 - Zero Slashed"
"4, 62, 73, 73, 73, // 237"
"5, 126, 1, 1, 1, 126, // 238"
"5, 42, 42, 42, 42, 42, // 239 - 3 Bar Equals"
"5, 68, 68, 95, 68, 68, // 240 - +/-"
"5, 64, 81, 74, 68, 64, // 241 - >="
"5, 64, 68, 74, 81, 64, // 242 - <="
"5, 0, 0, 255, 1, 3, // 243 - Top of Integral"
"3, 224, 128, 255, // 244 - Bot of Integral"
"5, 8, 8, 107, 107, 8, // 245 - Divide"
"5, 54, 18, 54, 36, 54, // 246 - Wavy ="
"5, 6, 15, 9, 15, 6, // 247 - Degree"
"4, 0, 0, 24, 24, // 248 - Math Product"
"4, 0, 0, 16, 16, // 249 - Short Dash"
"5, 48, 64, 255, 1, 1, // 250 - Square Root"
"5, 0, 31, 1, 1, 30, // 251 - Superscript n"
"5, 0, 25, 29, 23, 18, // 252 - Superscript 2"
"5, 0, 60, 60, 60, 60, // 253 - Centered Square"
"5, 255, 129, 129, 129, 255, // 254 - Full Frame"
"5, 255, 255, 255, 255, 255, // 255 - Full Block"
};


2. where  can i paste the code do you mean this file (MD_MAX72xx_font.cpp)
Please explain more
Sorry for disturbing
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