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December 26, 2006, 12:15 am
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I recently bought a 8051/8052 evaluation board with AT89S52, hex
keypad, 6 digit 7seg LEDs and a beep.
It's easy to find information on the programming of the
microcontroller, but I can't find any information on how to program the
keypad, LEDs, and the beep.
There is no manual that came with the board.
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