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So lets start and learn how can you interface a keypad with your arduino
this is the circuit for keypad interfacing with arduino
here we use 4*3 keypad matrix
this is source code to download source code
click here
set row as output and coloum as input as shown in video
now set row 1 as low and check every condition for it
sme do for row 2 , row 3 and row 4 and check every condition for each
copy hex file from here
paste here
now click on play button
now press any key and you will see it on screen as shown in video
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