I tried to sum it up as best I could in the title, and I've yet to find anything quite like what I need.
Basically, I'm trying to figure out how to get two pairs of lights to flash alternately, which wouldn't be too bad on its own, but the key is that I need one pair to flash two or three times, then the OTHER to flash two or three times, alternating back and forth in a steady pattern.
Simple version: Left flash three times, right flash three times, repeat.
My only stipulation is that I'd like to keep ICs out of it if at all reasonable, since I have access to most any other components I would need without having to purchase anything, but if it's unavoidable (or SIGNIFICANTLY easier), then that's fine.
The power source is 12V DC, and the lights are 27W@12V each, pairs wired in series (54W per side).
(If anyone's curious, yes, this is for emergency lighting, and yes, it is a legal implementation. )
Basically, I'm trying to figure out how to get two pairs of lights to flash alternately, which wouldn't be too bad on its own, but the key is that I need one pair to flash two or three times, then the OTHER to flash two or three times, alternating back and forth in a steady pattern.
Simple version: Left flash three times, right flash three times, repeat.
My only stipulation is that I'd like to keep ICs out of it if at all reasonable, since I have access to most any other components I would need without having to purchase anything, but if it's unavoidable (or SIGNIFICANTLY easier), then that's fine.
The power source is 12V DC, and the lights are 27W@12V each, pairs wired in series (54W per side).
(If anyone's curious, yes, this is for emergency lighting, and yes, it is a legal implementation. )
Attachments
-
8.8 KB Views: 173