Matrix keyboard, i need help :(((

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mexfi571

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Now i didn't understand this matrix keyboard working. do we programme outs of PIC and it becomes ground? Anyone can help me?Thanks for helpings friends.[/b]




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hi

the idea behind matrix keyboard with pic ........is scanning

for your matrix for example u have 3 columns and 3 rows

u will need 6 pins from the pic 3 inputs to read which putton is clicked

3 output to make the loop of the scanning

see :
https://www.dribin.org/dave/keyboard/one_html/


best wishes
 
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thanks for helping to me. they are useful information.


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