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Color Detector Circuit Project

Color detector scheme diagram

When all of the LDRs get triggered or stay untriggered, you will observe white and black light indications respectively. Following factors might be carefully noted:

1. Potensiometers VR1, VR2 and VR3 may possibly be applied to alter the sensitivity of the LDRs.
2. Use good quality light filters.
3. Common ends of the LDRs need to be joined to positive supply.