The problem is to drive a 4-digit display with a keypad(from 0 to 10).If somebody presses a number button,the number will be shown on the display.It will be 4-digit and move from right to left with a new pressing.
could you help about this problem's code?the keypad and displays:
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1 2 3
4 5 6 __ __ __ __
7 8 9 |__| |__| |__| |__|
* 0 # |__| |__| |__| |__|
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