RS-232 confusion


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  1. #1
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    Default Re: RS-232 confusion

    I got confused by this I guess.
    What you see in that picture the output from a RS-232 IC
    If you only want to know ON/OFF duration of 18v signal, why not use the signal to control the base of a transistor that would send 5v to a PIC?

    Then I would use interrupts on that pin and use a timer.

    Robert
    Last edited by Demon; - 17th March 2015 at 01:12. Reason: corrected Gate to Base

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