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Weak Pull Ups — Parallax Forums

Weak Pull Ups

william chanwilliam chan Posts: 1,326
edited 2008-02-23 13:21 in Propeller 1
Why the propeller does not come with weak internal pull ups like the SX?

I need to connect to a 3x4 keypad, so now I need to add 7 resistors for pull-ups?

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www.fd.com.my
www.mercedes.com.my

Comments

  • deSilvadeSilva Posts: 2,967
    edited 2008-02-23 13:21
    (a) That complicates matters considerably.
    (b) No, you need 3 or 4 only, depending on the way you drive it.
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