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PropBasic 4x4 Keypad Code — Parallax Forums

PropBasic 4x4 Keypad Code

camelot2camelot2 Posts: 54
edited 2011-11-22 11:03 in Propeller 1
I am trying to read a 4x4 keypad using PropBasic with
no luck. Does anyone have code for this that they
would share? thanks for your help

Comments

  • Martin_HMartin_H Posts: 4,051
    edited 2011-11-22 11:03
    How are you connecting the keypad? Do you have the code you've written so far?

    As a total guess I would think you would use four pins for rows and four pins for columns. You would set a row pin high and read the column pins, and repeat for the other row pins. You might need some current limiting resistors as well.
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