Need Single wire serial LCD converter example


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  1. #1
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    Default Need Single wire serial LCD converter example

    Does anyone have an example of using a pic with a single wire serial input and use like debugin then send out to a 4 bit parallel LCD.
    It's apparently harder than it sounds and a greatly kept secret.
    Ive seen 2 and 3 wire serial converters but no single wire and I haven't been able to make it work.

  2. #2
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    May 2008
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    Not certain if external links are allowed here, if not can someone remove it please

    1 wire lcd solution

    http://www.romanblack.com/shift1.htm

    He says it's all open source so I presume its ok to post.

    What I'd like is some picbasic examples of driving it (making it work) as the code he used was written in C


  3. #3
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    Thanks but not exactly what I was looking for.

  4. #4
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    Quote Originally Posted by polymer52 View Post
    Does anyone have an example of using a pic with a single wire serial input and use like debugin then send out to a 4 bit parallel LCD.
    It's apparently harder than it sounds and a greatly kept secret.
    Ive seen 2 and 3 wire serial converters but no single wire and I haven't been able to make it work.
    Hi polymer52,
    3 wire: power, ground, data
    2 wire: data, ground
    1 wire: data . . . how does the circuit path complete? Unless you use Earth Ground, which is essentially how wireless works.
    Check out the code in post 16 of this post:
    http://www.picbasic.co.uk/forum/show...highlight=cren
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.

  5. #5
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    Well of coarse it's going to have to have a ground. I meant a single data line and ground.
    I'm using a 12f675 and I have only one pin left available. I've been sending debug info out that pin to a pc terminal but I'd rather use a LCD since I have several (parallel) lying around.

    BTW nice tag line.

  6. #6
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    MeLabs has a simple code example showing how to make your own serial LCD here;
    http://www.melabs.com/resources/samples/x3/PBP/BPX3.BAS
    Regards,

    -Bruce
    tech at rentron.com
    http://www.rentron.com

  7. #7
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    Quote Originally Posted by Bruce View Post
    MeLabs has a simple code example showing how to make your own serial LCD here;
    http://www.melabs.com/resources/samples/x3/PBP/BPX3.BAS
    Looks like exactly what I am looking for.
    Thanks Bruce

  8. #8

    Default search

    Hi there

    just search the forums for LCD BACKPACK there a plenty cool examples

    Hope that helps

    Dennis

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