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  1. #1

    Need Interfacing of 4 rows of 4 groups of 7-segment display(means 16-segment display)

    Hello,

    I am trying to use either 89S51 or pic 16f877a. I want to interface 4 rows of 4 seven segment display. means total of 16 seven segment display. Not getting proper idea. Also I have to interface matrix keypad 4x4. Please help with any of the above two micro.

    Eagerly waiting for the reply.

    Thank you very much

    •   Alt25th November 2011, 08:14

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  2. #2
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    Re: Need Interfacing of 4 rows of 4 groups of 7-segment display(means 16-segment disp

    you can try 8051 its relatively easy! i couldn't understand the seven segment part but i do think that you can easily find codes on interfacing of 4x4 keypad!

    How to build a 16-key matrix serial keypad with the PIC16F628 and PicBasic Pro
    Interfacing Keypad with 8051 Microcontroller (AT89C51)
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    •   Alt25th November 2011, 08:28

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  3. #3
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    Re: Need Interfacing of 4 rows of 4 groups of 7-segment display(means 16-segment disp

    16 seven segment, every seven segment have 8 output. So, can do matrix connection in form 16X8 matrix.
    Here example 16X8 matrix (but in LED).
    Other option, you can extend output using shift register 74595.



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