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Quickstart board port P0 through p7 — Parallax Forums

Quickstart board port P0 through p7

dr hydradr hydra Posts: 212
edited 2011-08-29 09:49 in Propeller 1
Is it possible to use ports P0 through P7 for other things...such as LEDs...Or will the resistive touch-buttons cause problems...

Comments

  • David CarrierDavid Carrier Posts: 294
    edited 2011-08-29 08:52
    The touch buttons on the QuickStart are specifically designed so that they do not affect with the I/O pins, unless they are specifically being read. For more information about the hardware on the QuickStart, see its page at http://www.parallaxsemiconductor.com/products/quickstart and click on the "Specifications" button near the bottom.

    — David Carrier
    Parallax Inc.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2011-08-29 09:37
    dr hydra,

    So nice of you to give me an excuse to put in a plug for my new robot. I'm using P0 through P5 for the Nordic transceiver.

    Not only don't the touch pads interfere with the IO pins but the LEDs use a buffer so they don't interfere with the IO pins either. It's kind of cool to use the LED pins for other purposes and see them turn on and off with the activity of the pins.

    Duane
  • HShankoHShanko Posts: 402
    edited 2011-08-29 09:49
    dr hydra,

    I am using a rather old 24x1 LCD with data being output to the LCD on those P0..P7 lines. And since the LCD uses an Enable line to load/clock in the data/commands, I am free to use those low 8 lines for other input/output use.
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