Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Control circuit using pic 16F84

  1. Mar 13, 2008 #1
    how can u ask questions in this forum?
     
  2. jcsd
  3. Mar 13, 2008 #2
    can u plz give a program that will control a keypad
     
  4. Mar 13, 2008 #3

    stewartcs

    User Avatar
    Science Advisor

    You just did.

    CS
     
  5. Mar 13, 2008 #4

    stewartcs

    User Avatar
    Science Advisor

    Can you be more specific as to what you want?

    CS
     
  6. Mar 13, 2008 #5

    berkeman

    User Avatar

    Staff: Mentor

    We don't give out answers to homework/coursework problems here on the PF, lusy. We are willing to give you tutorial help, so that you can figure out the answers to your assignments yourself, however.

    So here's a basic link to keypad info on wikipedia.org, with other links:

    http://en.wikipedia.org/wiki/Keypad

    And you should also do some reading about how keyboards are scanned, and why there are diodes in the row/column arrangement of the key switch circuits. After you do that reading, it should be pretty apparent how to use a microcontroller (uC) to do the scanning.
     
  7. Mar 15, 2008 #6

    Ouabache

    User Avatar
    Science Advisor
    Homework Helper

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?