LED Bargraph chip (guitar LED bling-age) ..do with a PIC?


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    Mar 2009
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    Quote Originally Posted by toneman View Post
    which board??? which PIC??
    I'm assuming U R using PicBasicPro(?)
    This board ( with a 16f690 which is part of the PICKit2 beginners setup)...

    http://ww1.microchip.com/downloads/e...e%2051556a.pdf

    Quote Originally Posted by toneman View Post
    S&H usually refers to a gated analog capacitor with a HiZ buffer.
    I've read that more than once...no matter how many times I read it, it's still not sinking in (the gated capacitor bit!)


    Quote Originally Posted by toneman View Post
    Sounds like a very interesting project.
    Have U visited the DIYStompbox forum?
    There is a "digital" section.
    I haven't but I will.

    Re that code I posted above, hmmm, well - after posting it up, I realised it's not what I want (damn it...wish they had a delete button!) - it's just a simple LED level representation of signal level. What I want (what I really, really want) is a sample /hold representation ...I've spent a frustrating couple of hours, trying to do this with the PIC...it ought to be a piece of wII, but I actually spontaneously combusted (freaked the wife out a bit I can tell you...only because it made a terribly mess on the sofa)...just got back from the burns unit - I'll have another go, but will keep a fire blanket handy.

    re the project - yep, it is a good 'un....all the elements are coming together, this LED level indicator is just bells whistles - totally unnecessary, but much sought after nevertheless!
    Last edited by HankMcSpank; - 11th July 2009 at 20:50.

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