Hey all - I have an AVR project in mind that will require a 13 by 13 LED matrix of bright white LEDs. I'll be wiring up my own matrix to do this (not using premade 8x8's). I plan on using some shift registers to control the anodes/cathodes (columns/rows).
This will be my first project with an LED matrix and my first time working with shift registers.
I'm not sure if my shift registers can handle the current for this many LEDs (if I lit up an entire row for example). I don't know the proper way to wire this up, but I understand that I should control each row (maybe each column?) with a transistor of some kind between my microcontroller/shift register and the LEDs. I'm having trouble finding good explanations of how something like this should be wired up, or how to calculate the current requirements and how that translates to picking the right components.
Any advice would be appreciated. Thanks!