Hello,
first post here, i'd like to have your advice on a small project i am conducting which requires that about 20-30 leds in parallel dim automatically and all together from a no light status up to their maximum brightness, then do the opposite and start again.A full light cycle from OFF to MAx ON to OFF again should be about 20-30s long.
Something like a saw-blade shaped pattern ( down to up then down again then up etc) intensity-wise: _-°-_-°-_
i can't ascii-draw this because the format gets lots when i post.
Have you guys any direction to offer me? I cannot use a programmable PIC.
Are there, by any chance, any ready made IC that can cycle power/current outputs in such a fashion?
Thanks a lot for your kind help!
Ian
first post here, i'd like to have your advice on a small project i am conducting which requires that about 20-30 leds in parallel dim automatically and all together from a no light status up to their maximum brightness, then do the opposite and start again.A full light cycle from OFF to MAx ON to OFF again should be about 20-30s long.
Something like a saw-blade shaped pattern ( down to up then down again then up etc) intensity-wise: _-°-_-°-_
i can't ascii-draw this because the format gets lots when i post.
Have you guys any direction to offer me? I cannot use a programmable PIC.
Are there, by any chance, any ready made IC that can cycle power/current outputs in such a fashion?
Thanks a lot for your kind help!
Ian