Quote Originally Posted by mackrackit View Post
Looking forward to see your results, it would be very useful.
Mackrackit,

I tested this idea with a red-green 10 LED bargraph and yes it works. The setup is different from what we have been discussing in this thread, but the idea of getting a new color (yellow) is the same.

First, I applied a square wave to the circuit with a period of 1.2 seconds and you can see how the color changes between red and green. Next, I applied a square wave with a period of 2 milliseconds per cycle (50% duty cycle) and all you see is a yellow color. Also, If you change the percentage of the duty cycle you get different tones of yellow. This would be very useful for a project like the sliding doors.

Robert