Hello all,
I have ordered two MAX7219 and I am trying to come up with a design.
In my case I would like 6 columns and 10 rows. Can I simply exchange two DIG ports for SEG ports on the MAX7219?
Thanks!
What do you see when you read the data sheet for that IC?
It is a 7 segment 8 digit driver that can handle matrices of LEDs up to 8x8, or 64 individual LEDs so
8 columns
8 rows
So no, you cannot do 6x10.
If you are using 60 individual LEDs, just put them on the 8 x 8 grid and use software to compensate for the fact that it isn't a "nice" arrangement matching your physical requirement.
A software layer wou,d let you think about and write to a virtual matrix 6 by 10. Oh yeah, this is why I like software.
If you actually have a 6 x 10 matrix and can't do that, then one MAX7219 can't help you.
But you could use two. Or take an entire different approach.
a7
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Ahh thanks sorry, I am newbie but thats helpful advice!
Sorry no.
You will have to use a second MAZ7219.
Adafruit has some interesting products, like this 16x9 led driver: Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731 [STEMMA QT / Qwiic] : ID 2946 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits
and this HT16K33 16x8 backpack:
Adafruit 16x8 LED Matrix Driver Backpack - HT16K33 Breakout : ID 1427 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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No, he just has it confused.
He only wants to drive 60 LEDs; the MAX7219 drives 64.
As Alto says, he needs to rearrange the matrix and use software to "see" it as 6 by 10.
Nor can two, as you would still have to "break" the matrix! 
Thanks, really cool this one! The difference is that it can dim compared to the MAX7219 ? (and it can do more leds per chip) but I still need to adjust the code to a 16x6 matrix.
Would be fun to play with
Yep thanks, that will get me going, first I needed to know how to wire the matrix so just have to follow the picture. The code will be the next thing to worry about 
The difference also appears to be - if I understand it correctly and I have not fully researched the chip - that it uses a "charlieplexed" matrix which means it is wired totally differently to any other.
Thanks well noticed, that is most likely much more complex to do D.I.Y.
That’s what razor knives are for!
Srsly, tho, THX, tots missed that…
a7
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