Hello.

I have made a simple device that controls a RGB LED by software PWM, using data received by serial port...
This is working VERY well, no problem with this.

By now the color is controlled by 3 bytes (R,G and B)
But I want to add a new feature to control the color using only 1 byte maybe 2 two bytes.

What is really necessary is to have black and white in the combination.

What would be nice:
In 1 byte color selection, to start with black, then cycle all colors, then white, or something like that.
In 2 byte mode, one byte be the color, and the other the brightness would be very nice.

It is not specific, I dont have any clue on how to do this, so any idea would be very helpful.
The only thing that cames in my mind is a color table, but would use 3x256 bytes of code memory.

Well, I really dont know!


Thank you very much!