I am trying to figure out how to use K8055 analog input (A1) to register a voltage when i cover the LED (D1), preventing the LDR-resistor to recive light. I know there is hundreds of parameters to this, background light etc etc. But just the idea of it. I have made a little circuit as you can see in the image. What do you think about it?
[quote]I have made a little circuit as you can see in the image. What do you think about it?[/quote]The circuit looks good!
Can someone guid me to get the correct components for this? I need a fast and stable circuit so that K8055/V110 can registere the voltage in a reliable way. You may alter my “noob” circuit 
Can I get the +5V from the K8055/V110 board?
Here you can find some K8055 related projects: roevalley.com/newsbrowser/v- … -index.htm
Maybe you can use them as reference.
You’ll get the +5V from the “top” pin of the pin headers SK2 and SK3.
Without knowing what else it is you want to do, it would be hard to give definitive answers. You don’t have any digital pins left, and can’t do serial communications, so that limits, to a degree, what else you can do.
If you are already doing real-time audio processing, I doubt that you have all that much memory or process capability left, either.
But, if all you wanted to do was read a potentiometer to control volume, that should be possible.
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