I have a question about using the PL9823 led in an matrix. I have seen that everybody at http://instructables.com using this are connecting a 100nf cap at every led. But i can’t see the reason for this, because all caps are parallel connected and just acting as one big cap. 10 leds +cap = 1uF. 100leds =10uF, so why not just use one big cap around 10-220uF at the powersupply? Or am i missing something here?
I have this problem with my matrix that all but the 3 first h-lines are garbled (i have 493 leds 29x17). I would guess more that it is i need more power wires connected, not a bunch of caps??
I have a 5v 35amp supply. With wires both at the left side and the right side of the display.