Mini led matrix and max7219

[petethegeek]

If you are referring to the slightly ‘ambiguous’ schematic in the data sheet, you might like to have a look at this post and subsequent reply.

Polarity on the 8x8 Square LED Matrix

Hi, I recently purchased one of your Square LED matrix displays (COM0500) and will shortly be using it in a small project. However I am having a little difficulty with the datasheet which is linked to in your product description. There are two internal circuit diagrams shown which appear to my (admittedly somewhat jaded) eyes to be identical, other than the polarity of all the LEDs being opposite. Both diagrams are labelled PCB:M12088A/B, the display I received being marked KEM-1288-AW. Would …