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  1. #1
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    Has anyone used this one? Is it any good?
    http://uk.rs-online.com/web/search/s...duct&R=5326795
    Dave
    Always wear safety glasses while programming.

  2. #2
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    Hi B_B

    Ok, I'm sold

    These LCD's look like great fun and a really useful interface.

    When my first LED came on, that was brilliant. When my seven segment display /
    driver lit up and counted up to nine that was cool.

    These look in a different league, can't wait.

    Dave

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    Quote Originally Posted by mackrackit View Post
    Has anyone used this one? Is it any good?
    http://uk.rs-online.com/web/search/s...duct&R=5326795
    That one doesn't look like it's got a backlight. One with a backlight would be sexier...

    Here in the US, I find these to be a good deal for $10USD.
    http://search.digikey.com/scripts/Dk...ywords=c0220az
    Don't know about UK vendors.


    steve
    Last edited by Byte_Butcher; - 28th March 2010 at 22:44.

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    Interrupt on change (interrupt when the state of a pin changes)
    Again this is a snippet from another chip (16F873A) but it will give you something to start with.
    Code:
    ON INTERRUPT GOTO MYINT
    INTCON = %10010000   'PORTB.0 CHANGE
    
    DISABLE
    MYINT:
    IF PORTB.0 = 1 THEN
        ' DO SOMETHING
    ELSE
        'DO SOMETHING ELSE
    ENDIF
    INTCON.1 = 0
    RESUME
    ENABLE
     'THE ABOVE WILL ALSO DEBOUNCE THE SWITCH
    Dave
    Always wear safety glasses while programming.

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    Cheers mackrackit,

    I made a little table up that other newbies who are maybe following this thread might find useful. It hinges on what you said the other day about setting the prescaler (TMR0) and using that with (I = I +1) to set up a delay of your choosing.

    BIT TMR0 Time_u_secs HZ
    000 1:2 512 976
    001 1:4 1024 488
    010 1:8 2048 244
    011 1:16 4096 122
    100 1:32 8192 61
    101 1:64 16384 30.5
    110 1:128 32768 15.2
    111 1:256 65536 7.6
    Didn't quite come out as planned and every time I edit it the changes I make it just resets.
    Still, I'm sure you get the drift (might be worth checking my figures as well though).


    Any thoughts on that LCD?

    Dave
    Last edited by LEDave; - 29th March 2010 at 16:39.

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    I've just had a thought.

    It's probably dangerous for me to offer advice right now, no matter how well intensioned. As some of my conclusions maybe a little off the mark.

    Dave

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    Quote Originally Posted by LEDave View Post
    I've just had a thought.

    It's probably dangerous for me to offer advice right now, no matter how well intensioned. As some of my conclusions maybe a little off the mark.

    Dave
    Most of mine are, does not stop me...

    LCD... Back-light would be nice but I did not see very many options from your supplier. So that is why I was looking at one with four lines.
    Dave
    Always wear safety glasses while programming.

  8. #8
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    Most of mine are, does not stop me...
    LCD... Back-light would be nice but I did not see very many options from your supplier. So that is why I was looking at one with four lines.
    In the LCD product spec page (15/17) it says:
    (8) In particular do not forcibly bend the I/O cable or the backlight cable.
    So maybe it does have a backlight?

    That's for the display we were looking at:

    http://uk.rs-online.com/web/search/s...duct&R=5326795

    Page (15/17) in here:

    http://docs-europe.origin.electrocom...6b806dda19.pdf

    Dave
    Last edited by LEDave; - 29th March 2010 at 18:14.

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