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 someone be good enough to confirm, or otherwise, if pins 13,3,4,10,6,11,15,16 are anodes or cathodes.