Weak Pull Ups
![william chan](https://forums.parallax.com/uploads/userpics/RBTCEMRWP85K/nQFR9OII9OM33.jpg)
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
I need to connect to a 3x4 keypad, so now I need to add 7 resistors for pull-ups?
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
www.fd.com.my
www.mercedes.com.my
Comments
(b) No, you need 3 or 4 only, depending on the way you drive it.