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Seven Segment Scanning

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3 Threads found on edaboard.com: Seven Segment Scanning
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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
Driving seven segment displays has a problem of drawing large current, however you can use scanning segment by segment making small program on any available microcontroller, but i think, you would better to think in using even a single line LCD, it would work better and more reliable for you.. hope that (...)