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Re: MAX7219 32x32 LED Display

Posted: Fri Jun 19, 2026 7:41 pm
by mnfisher
Looking good....

Re: MAX7219 32x32 LED Display

Posted: Fri Jun 19, 2026 7:44 pm
by kaqkk007
By deleting the entire text and just typing in the important characters, I saved a lot of memory. 1 "blank display" with 10 digits and a few characters
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x3C,0x42,0x46,0x4A,0x52,0x62,0x42,0x3C,
0x10,0x30,0x50,0x10,0x10,0x10,0x10,0x38,
0x38,0x44,0x04,0x08,0x10,0x20,0x42,0x7C,
0x3C,0x42,0x02,0x0C,0x02,0x02,0x42,0x3C,
0x04,0x0C,0x14,0x24,0x44,0xFE,0x04,0x04,
0x7E,0x40,0x40,0x3C,0x02,0x02,0x42,0x3C,
0x3C,0x42,0x40,0x7C,0x42,0x42,0x42,0x3C,
0x3E,0x42,0x02,0x04,0x08,0x10,0x20,0x20,
0x3C,0x42,0x42,0x3C,0x42,0x42,0x42,0x3C,
0x3C,0x42,0x42,0x3E,0x02,0x02,0x42,0x3C,
0x18,0x3C,0x7E,0x18,0x18,0x18,0x3C,0x7E,
0x7E,0x3C,0x18,0x18,0x18,0x7E,0x3C,0x18,
0x00,0x10,0x00,0x00,0x00,0x00,0x10,0x00,
0x61,0x62,0x04,0x08,0x10,0x20,0x46,0x86,
0x20,0x10,0x00,0x3C,0x42,0x40,0x42,0x3C,
0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x3C,
0x1C,0x20,0x20,0x38,0x20,0x20,0x20,0x20,
0x80,0x80,0x80,0xF0,0x88,0x88,0x88,0xF0,
0x00,0x00,0x58,0x64,0x40,0x40,0x40,0x40,

Thank you so much for all your help!

Re: MAX7219 32x32 LED Display

Posted: Sat Jun 20, 2026 11:08 am
by mnfisher
"blank display" - 'space' :-)

Yes - a good way of reducing memory usage - I'm not sure if the component still has the 16x16 characters but you could strip those out if you don't use them.

Re: MAX7219 32x32 LED Display

Posted: Sat Jun 20, 2026 12:30 pm
by kaqkk007
I deleted the entire contents of the file and only added this many characters (which is just enough for this project)