robwerden

I actually was just reading about those IC's. Maybe I was describing the effect im looking for incorrectly. I used the word sequence which may have been incorrect. I want the leds to turn on one at a time but stay on. It looks to me like the IC turns one on then off, then the next on then off and so on. Im looking to simply light up all of the leds and have them stay on, but make it with a small 75th of a second delay from one to the next. That way all 75 will turn on in 1 second total. Does this still require an IC or is there a way to use a CAP to control the delay.

Sorry im a just getting started in electronics so im not familiar with IC's Is there a place or diagram that shows how they are connected?

Hi, I found this forum in a search and thought maybe someone knew the answer to this question. Id like to set up a light array for a display that consists of 75 leds arranged in a spiral pattern. Id like to know how to get the leds to light up insequence from the center and spiral out to the outside. I thought about putting capacitors between each led but then thought it might make the sequence to slow. Id like the entire event to happen in less than a second. Just fast enough to see its happening but not to fast that it looks like its happening all at one time. Any ideas?