SSLtech
Well-known member
So Amorris and I are looking to "pimp ze auto" here at work. (an electric delivery truck, which the bosses were foolish enough to christen "Kitt"... we're intent on making them regret that flippant course of action!)
Anyhow, what I want to build is one of them red-light ramps that slowly 'swishes' from side-to-side. -I can use LED clusters or 12V lights, but -looking at the 'Knight Rider' clips on youtube, there's a definite "afterglow" that fades down, "smoothing" the switching from bulb-to-bulb.
I was thinking of an up/down CMOS counter, but I don't see a simple way... My second plan is a bargraph driver in "dot" mode, with it's output feeding lamp drivers that have "slugging" capacitors to help with the gradual fadeout of the lights... If I fed a slow triangle wave in, it should do the "Swish" think pretty well, I think...
Anyone know of any easier solutions?
Keith
Anyhow, what I want to build is one of them red-light ramps that slowly 'swishes' from side-to-side. -I can use LED clusters or 12V lights, but -looking at the 'Knight Rider' clips on youtube, there's a definite "afterglow" that fades down, "smoothing" the switching from bulb-to-bulb.
I was thinking of an up/down CMOS counter, but I don't see a simple way... My second plan is a bargraph driver in "dot" mode, with it's output feeding lamp drivers that have "slugging" capacitors to help with the gradual fadeout of the lights... If I fed a slow triangle wave in, it should do the "Swish" think pretty well, I think...
Anyone know of any easier solutions?
Keith