bobo1on1 Wrote:That circuit will just turn the leds on most of the time, what you need to do is pass the vga signals through a lowpass filter, then convert that voltage into a proportional current for the leds.
That being said, you won't get any brightness or color adjustments, which you definitely need, without it most of the video content will look like white light.
why? why filter then pull current? and as far as color and brightness...maybe you could use the TV's/monitors brightness and color controls?
If we wanted to get into that then use two LM324 chips and apply both low pass filtering and V to A conversion with some added resistors. Im not saying this is the BEST solution but its definitely easier and less expensive then having to have an arduino.