Using LEDs as colour sensors


Posted on Feb 6, 2014

Part of this circuit is turning the analog signal coming from the reversed LED (sensing mode) and amplified by the op amp into a digital (on/off) signal. I got rid of all that. This is the modified simplified version of the schematics: Another possibility is the one explored in this tutorial but given my results so far I`m discouraged to use LED as colour sensors:


Using LEDs as colour sensors
Click here to download the full size of the above Circuit.




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