16x2 LCD supply and backlight driven from Pic pin ??

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  1. - 26th September 2014, 19:00 #1
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    andybarrett1
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    Default Re: 16x2 LCD supply and backlight driven from Pic pin ??

    Quote Originally Posted by towlerg View Post
    Any chance you could post a curcuit diagram, for us hardware dweebs.

    George
    Name: photo.JPG Views: 1479 Size: 562.6 KB

    Looks just like the above ….. It was a 2N7000 (Standard Circuit) Even remembered the pulldown !
  2. - 26th September 2014, 23:58 #2
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    Default Re: 16x2 LCD supply and backlight driven from Pic pin ??

    Now you made me look up MOSFETs to refresh my memory. This guy has a nice explanation:

    http://www.talkingelectronics.com/pr...ET/MOSFET.html

    Lots of DO's and DON'Ts at the bottom; I knew practically none of them.

    Robert
  3. - 27th September 2014, 08:06 #3
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    Default Re: 16x2 LCD supply and backlight driven from Pic pin ??

    Good Find Robert ...

    Very useful !
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