Photocell Array as LED Dimmer

Discussion in 'The Projects Forum' started by fencesabre2000, Jul 23, 2012.

  1. fencesabre2000

    Thread Starter New Member

    Jul 23, 2012
    1
    0
    A little background info:
    I'm currently working on building a beer pong table and would like to light up the cups from underneath. Ideally, the LEDs would grow brighter when a cup is set down on the clear resin coated, circular cut out and dim when it's taken off but a simple on/off would work as well.

    Based on what i've been able to find, it seems like the best solution is to use a photocell as a light detector. I'm planning on plugging into a standard wall socket, using 22 red LEDs (10 for each side of the table, plus one for each water cup).

    Issue:
    I'm not sure how to go about individually controlling the LEDs i.e I don't want all of the LEDs to dim when you take 1 cup off.


    If you have any other suggestions for how I might go about doing this, please let me know! I have a limited knowledge of circuits based on the 1 class I took in college so any help you can provide would be greatly appreciated!
     
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