Ok, so... I'm not electronics expert, I admit that, but I've run into something of a brain teaser.
I need to drive 16 LEDs seperately using PWM to make them appear to fade in intensity (and so be able to mix their colors).
So I need to have 48 lines with PWM... ack.
However - the goal here is to build off of a Gumstix embedded linux-pc and be able to control the leds in software from that.
Now I'm able to control basic i/o pins, but they aren't PWM pins, and even if they were there aren't 48 of them.
Help? I really have no idea how the hell I'd be able to go from a few lines of IO to multiple lines of PWM.
Someone suggested to me the 74HC595 but I'm not sure how that would actually help in this case...
I need to drive 16 LEDs seperately using PWM to make them appear to fade in intensity (and so be able to mix their colors).
So I need to have 48 lines with PWM... ack.
However - the goal here is to build off of a Gumstix embedded linux-pc and be able to control the leds in software from that.
Now I'm able to control basic i/o pins, but they aren't PWM pins, and even if they were there aren't 48 of them.
Help? I really have no idea how the hell I'd be able to go from a few lines of IO to multiple lines of PWM.
Someone suggested to me the 74HC595 but I'm not sure how that would actually help in this case...