I am planning to make a code where after you push two numbers in numeric keypad and press the # button it will start to decrements until it will
stop to 0
I will assign:
RD as the output of 2 seven segment(is will 2 7447 IC decoder)
RA[0-3] as the row input of keypad
RB[0-2] as the column input of keypad
---------------------- -------------------------
What I dont know is what will be the benefit on using RB change interrupt
stop to 0
I will assign:
RD as the output of 2 seven segment(is will 2 7447 IC decoder)
RA[0-3] as the row input of keypad
RB[0-2] as the column input of keypad
---------------------- -------------------------
What I dont know is what will be the benefit on using RB change interrupt
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