There are two type of these led matrices one like a 1088AX and one like a 1088AX.
The difference is the orientation of the LED between the rows and columns. These configurations are called common cathode or common anode.
These are reversed in the two AX and BX matrices. The way I look at it is that both matrices can be use in one given design based on a MAX7219 regarding hardware and software libraries used, the only thing that needs to be done is to rotate one matrix 180 degrees compared with the other.My Question is: Is this assumption right?
I ask this because I'm planning to buy the matrix module from the link below which uses a BX (BS) LED matrix but most of the examples I see make use of a AX (AS) type matrix. I'm worried that the software is not controlling the MAX7219 in a correct way to make the LEDs go on and off.
That means the LED's need to be forward current activated instead of reverse. If my assumption is correct I can use the standard libraries without any change independent of the matrix type. But if I'm wrong I need to change the libraries and I want to avoid that.
Attached the MAX7219 module and matrix examples files
https://nl.aliexpress.com/item/Free-Shipping-MAX7219-dot-matrix-module-Display-module-DIY-kit-MCU-control-module-Special-promotions/1006544892.htmlAttached the MAX7219 module and matrix examples files