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5v LCD with Propeller — Parallax Forums

5v LCD with Propeller

BuddieBuddie Posts: 29
edited 2007-12-29 22:15 in Propeller 1
Hey,
I have a Gravitech Serial LCD unit which runs on 5v. I would like to interface it with my propeller, which runs on 3.3 v. Is there any special way·that I need to connect the two, because of the voltage difference?
Thanks

Comments

  • Paul BakerPaul Baker Posts: 6,351
    edited 2007-12-29 22:09
    Take a look at the top sticky: http://forums.parallax.com/showthread.php?p=667581·it contains a thread for interfacing 5V parts with the Propeller.

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.
  • Chicago MikeChicago Mike Posts: 88
    edited 2007-12-29 22:15
    As Paul said... The sticky thread talks a lot about this. I"m assuming this is a Unidirectional serial from the prop to the LCD. Chances are this would just work. IF there are any comm lines that for some reason are sourcing from the LCD, a 1K resistor in series would probably do just fine. (As the thread talks about).
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