Hi Burt, Mike and Wilksey,
Burt, you have much more experience with this sort of thing, but it still confuses me if you are right how he keeps track of the pins and PWM when using the 2803?
Mike, as to the schematic, I never made one. My design was just to connect 32 leds to 32 of the O/P pins of the 887, I used the 5 output oins of port A, all ports B, C and D and then 3 on port E, 32 in all. Since I only want one pattern I wasn't concerned about tying up all the pins as outputs, I just intend the pattern to run at power up and not change to other patterns as the video does. Just that one gorgeous pattern will satisfy me nicely!
I almost went for just 2 ports and use 2 LEDs on opposing sides of the ring but the video seems that he has control of both sides separately, at least it looks like it to me, but then again every time I watch the thing I get more confused.
How would your Array idea work, can you give me an example?
Thanks guys.....Al