Keypad port problems

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  1. - 14th February 2011, 15:11 #1
    lockjawz's Avatar
    lockjawz
    lockjawz is offline Junior Member
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    Default Keypad port problems

    Is there any way i can use a key pad without using 10 ports?
  2. - 14th February 2011, 15:19 #2
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    Default Re: Keypad port problems

    Mister_e made a nice configurable keypad routine. It uses a matrix, so for a 4 x 4 keypad it uses 8 ports. 3 x 4 would be 7 ports. http://www.picbasic.co.uk/forum/cont...Keypad-routine
  3. - 13th March 2011, 22:20 #3
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    Default Re: Keypad port problems

    Yes, use analog functions and use different resistor values for each row.
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