Hello.
There are a lot of 7X11 LED matrixes on the market. I bought couple of them, they have cathodes from 7x side and anodes from the 11x side. The question is, since such matrixes are made, there should be some dedicated circuitry to drive it?
I know the mutliplexing options with transistors, I know about generic LED drivers like MAX7219, HT1632, TM1629A and so on. But all these are designed to drive LED matrixes in mutiple of 8 - like 8x8, 16x8, 32x16 and so on. Of course, these drivers can be also used for driving such LED matrixes, but a lot of outputs would be wasted. So maybe there is some dedicated chip for multiple 7x11 matrixes, about which I don't know?