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4X4 matrix Keypad design with 68HC11

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Chingbor

Chingbor

New Member
HI all,

I would like to build a hardware - 4X4 matrix keypad with use of IC MM74C922 base on Motorolla 68HC11 [/COLOR]microcotroller, but I have no idea about the circuit design and the program, i wish everyone in this forum whose had experiance in this can help me and give any resources ...Thanks
 
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