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Seven Segment Scanning

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3 Threads found on Seven Segment Scanning
hello i am interfacing a ps2 keyboard using AT89C2051. i did some codes but it won't work when a key is pressed. it wont display anything. anyone has any idea? ill attach my current code. thanks
hello genius guys well now i am making a XCESS-3 calculator .the only problem i am facing is HOW TO DRIVE seven segment DISPLAY i am using 7447 seven segment display ic.How this ic can be used. how i connect my output from calculator (Binary form) to this 7447 ic. plz reply soon thz in advance