I think this thread :
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1148719849/8#8
about the TSL230 Light to Frequency Converter from parallax might be interesting for you.
I think this thread :
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1148719849/8#8
about the TSL230 Light to Frequency Converter from parallax might be interesting for you.