Thanks for the reply eric!
I'm looking at comparator ICs with internal voltage reference levels, and I'm not really sure how that works. The LTC1443 has a Vref of 1.182V ±1%.
**broken link removed**
Pin 8 is REF. Does that mean that pin 8 needs 1.182V connected to it, or is that voltage always on that pin no matter what the V+ (within operating range) on pin 3?
I'm thinking I can make my circuit by using this comparator IC since I need 3 light sensors for different colors.
If it's always at 1.182V on that pin, does that mean I connect pin 8 to InA-, InB-, and InC- for a set voltage reference. Then on pins InA+, InB+, and InC+ I set up three seperate LDR voltage divider circuits that will cause the comparator outputs OUTA, OUTB, and OUTC to go high when the proper amount of light strikes the LDR?
Any insight? Thanks.