I have a bunch of these PAR lights below. They work with DMX and have per LED PAR 3 red, 3 green, 3 blue and 3 white LEDs.
I can set the value for the red, green, blue and white lights independently (so four values, where 0 = off, 255 = max intensity).
When fading I had the idea to let the values from all colors go up from 0 to 255 and back. However, there are some issues:
- Some colors do not turn on unless having a minimum value (e.g. red at 8, blue at 2 etc).
- Some colors do not seem to have the same intensity curve as others (meaning value 10 for red has the same intensity as 2 for green)
- Some curves are far from linear (meaning the intensity brightness from 2 to 10, is much bigger than 100 to 200).
So I have the idea to 'measure' the values per intensity and make my own intensity curves.
But I wonder what is the best way to do this? Probably by using a LDR but maybe there are better ways?