Hello, my name is Holland and I’m a bit new when it comes to a lot of hardware design.
I’m trying to come up with a way to drive 8x RGB LEDs but I don’t want to use a lot of pins to do so. I also want all of them to be the same color, I just want them to be a different brightnesses. So I have aa couple ideas of how I’d maybe do this, but I’d like to know first whites the best/easiest before I just started buying a bunch of parts.
A. Setup a pin for each color, and wiring all the LEDS to these pins in parallel.
My only problem with this is that the current will drop from them all being in parallel, and I don’t know if that would effect them to an unstable amount. I could use Transistors to control the 3.3v out but then that would take a lot of transistor and a bunch of pins too, but Im not certain.
B. Multiplexing the LEDS. I genuinely don’t really know how someone would do this on the daisy platform, so any help on what IC to use and how to configure it would be great!
Any help is appreciated!