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.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    5V 0.5A power supply
    Sensitive Intruder AlarmCircuit using 555 IC and 741 IC
    Sp6126 Zeta Regulator For Led Driver 10v-18 Input To 0.3a Output
    Panic Alarm Circuit
    LM317T Variable Voltage Regulator
    Random Access Memories
    Circuit diagram of brightness control relay
    32kHz clock oscillator circuit



    Top