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LCD Display for $12.50.... — Parallax Forums

LCD Display for $12.50....

ArchiverArchiver Posts: 46,084
edited 2003-04-01 21:25 in General Discussion
I'm looking for an easy connecting low cost LCD Display with
backlighting. I've come across a 2x24 LCD Display from All Electronics
for $12.50. Does anyone know how difficult this unit would be to get
running with a BS2P and the BS2P Demo Board? The display comes with a
2x7 plug which may make the header on the Demo Board.

http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=L
CD-69&type=store

Does it matter that the documentation (see link) doesn't call out a
HD44780 driver, or will make it more difficult to get working?

Any thoughts on this?
Thanks,
Chris

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Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-04-01 21:25
    I have 5 of these and they work great with my BS2p40. The backlight
    current is set with resistors R11-R13 and are populated with 4.7 ohm,
    1206 resistors. If you remove R9(zero ohm jumper) the backlight will
    be off. You can solder wires from each pad of R9 to a switch and
    control the backlight on or off. The display takes about 400 mA with
    the backlight on and if you switch the backlight on or off place a
    220 uF cap by pins 1 and 2 of the LCD connector on your board or you
    will reset your stamp with the surge. I have changed R11-R13 to 22
    ohm, 1206 and the backlight is still bright enough to see in the dark
    and only requires a fraction of the current.

    Here is the display on one of my projects.

    http://myweb.core.com/photos/jbirnsch(at)vbe(dot)com/BasicStamp/

    Replace the (at) and (dot) in the link with @ and .

    Jason


    --- In basicstamps@yahoogroups.com, cdundorf@j... wrote:
    > I'm looking for an easy connecting low cost LCD Display with
    > backlighting. I've come across a 2x24 LCD Display from All
    Electronics
    > for $12.50. Does anyone know how difficult this unit would be to
    get
    > running with a BS2P and the BS2P Demo Board? The display comes
    with a
    > 2x7 plug which may make the header on the Demo Board.
    >
    > http://www.allelectronics.com/cgi-bin/category.cgi?
    category=search&item=L
    > CD-69&type=store
    >
    > Does it matter that the documentation (see link) doesn't call out a
    > HD44780 driver, or will make it more difficult to get working?
    >
    > Any thoughts on this?
    > Thanks,
    > Chris
    >
    > ________________________________________________________________
    > Sign Up for Juno Platinum Internet Access Today
    > Only $9.95 per month!
    > Visit www.juno.com
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