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matrix keypad multiplex with lcd

LEUNG GEORGE

Hi, can anyone help me about using keil c (8052) to use P1_0 to P1_3 as row of matrix keypad pin and also 4 data pins od 16x2 lcd (i.e. P1_0 to P1_3 multiplex with matrix keypad and lcd !). using matrix keypad and lcd I only have 8 pins available .

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