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mrcodetastic / ESP32-HUB75-MatrixPanel-DMA

An Adafruit GFX Compatible Library for the ESP32, ESP32-S2, ESP32-S3 to drive HUB75 LED matrix panels using DMA for high refresh rates. Supports panel chaining.
MIT License
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HUB12 Support #379

Open BimoSora2 opened 1 year ago

BimoSora2 commented 1 year ago

Does it support HUB12?

DarrylStrong commented 1 year ago

Nope, HUB 12 is not multiplexed so totally different.

board707 commented 1 year ago

Not multiplexed? What do you mean?

As far I know, HUB12 use miltplexion with pins A & B. The general algorithm of HUB12 processing is quite similar to work with RGB 32x16 scan4 panels. I am work with Mono HUB12 and RGB HUB75 in the same library,

DarrylStrong commented 1 year ago

Sorry, my mistake.

It looks like a 1/4 scan on second looking.

You will be able to use the library with a few tricks. There is an example of this in the git repository.

Kouzeru commented 1 year ago

You won't be able to get this work with this library, correctly, anyway. First of all, the memory layout are different.

while display layout of HUB-75 like this

in 1 -> ABCDEF...
in 2 -> ABCDEF...

HUB-12 is like this

in -> AEIMQU...
      BFJNRV... 
      CGKOSW...
      DHLPTX...

Also, the polarity of data is inverted, OE is also inverted; It's way easier for you to work with SPI for HUB-12, and it's easy to make driver for

board707 commented 1 year ago

layout of HUB-75 like this

in 1 -> ABCDEF... in 2 -> ABCDEF...

It is true for plain scan RGB panels only, for example for panels where scan is half of height, like 32x16 scan8. If we will talk about 32x16 scan4 panels - many of them has layout similar to monochrome ones. If you plan to work with wide set of RGB panels - you will forced to manage several variants of memory layout.

Change polarity settings is not difficult at all :)