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Help on Idea

Discussion in 'General Electronics Discussion' started by jimwill48, Sep 8, 2013.

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  1. jimwill48


    Sep 2, 2010
    What would I need to make the following. A small handheld device, with a microphone, led indicator and tuning pot. What the device would do: It would be adjustable to the ambient sound level of a room using the tuning pot. Any other noise over that preset level would cause the led to light. I kind of have a idea on the build but would like so input on the circuit.
  2. KJ6EAD


    Aug 13, 2011
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