Hi Kathy,
When you're using the color sensor, in whatever block you're using, select
Color Sensor - Compare - Color.  Then you can choose what color you want,
as opposed to a reflected or ambient light intensity.  I've tried to attach
a picture so you can see this.  There are also a lot of tutorials in the
software that might be worth checking out.

Good luck!
Sonya



On Tue, Oct 22, 2013 at 3:00 PM, Molina, Katherine <
[log in to unmask]> wrote:

>  Hello all,
>
> I am very new to the EV3 system. I did not use the color sensor with the
> NXTG. Can anyone direct me to a tutorial on how to program the color
> sensor? I'm not clear how it's different from the light sensor. It seems
> there must be a way to tell it to "find blue" rather than a certain
> reflected light intensity.
>
> Thanks so much!
> Kathy Molina
>
> PS Apologies if this topic has been covered already.
>
>
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