Color Sensor

Discussion in 'Electronic Projects' started by BM Engineer, Mar 20, 2017 at 4:46 PM.

  1. BM Engineer

    BM Engineer

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    Hello,
    I want to develop a circuit that detects the orange color of an LED and measure the time the LED orange light is on.
    I want to measure the orange light of 10 LED apart from each other. and they are placed in different places. Can I use one microcontroller? how to connect them ?
    What are the best color sensors.? Also, I want to make it as cheap as possible. So, what are the cheapest components to use ( like The microcontroller and so on).?
     
    BM Engineer, Mar 20, 2017 at 4:46 PM
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  2. BM Engineer

    davenn Moderator

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    and how far apart are the LEDs and the detector going to be ?
    you are going to have to filter out ALL other light sources ... will be difficult
     
    davenn, Mar 20, 2017 at 7:51 PM
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  3. BM Engineer

    BM Engineer

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    1cm
     
    BM Engineer, Mar 21, 2017 at 10:17 AM
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  4. BM Engineer

    Alec_t

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    Is the LED light always orange, or does the colour change?
     
    Alec_t, Mar 21, 2017 at 12:14 PM
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  5. BM Engineer

    BM Engineer

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    It's always orange ..
    Actually, It's an indicator led for a medical device, I want to record the time a certain program is on - the led is on whenever the program is active
     
    BM Engineer, Mar 23, 2017 at 6:49 AM
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  6. BM Engineer

    Alec_t

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    A photo-transistor or light-dependent-resistor in direct contact with the LED could exclude extraneous light easily, but presumably the LED has to be visible also to a human when the device is in use?
     
    Alec_t, Mar 23, 2017 at 3:05 PM
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