[chbot] Anyone tried LEDs as light sensors

[Charles Manning]

On Tuesday 11 November 2008 09:38:17 QtuTrains wrote:

> I wonder if one can use a trio of LEDs (red, green, blue all with
> coloured housings) to make a colour sensitive light detector....

I don't see why not. Coloured filtering works in both paths.
Of course the different justions will perform differently so you would likely 
need some sort of gamma correction.