Maverickmax
Advanced Member level 1
Interface to 4x4 Keypad
Hi
I am struggling to interface my 4x4 Keypad as I connected 4 rows and columns to P0H to P0H7 respectively. I tried to scan it but I kept getting incorrect data. How can I scan the keypad correctly?
I use column as output and row as input.
Please advise me asap
MM
Hi
I am struggling to interface my 4x4 Keypad as I connected 4 rows and columns to P0H to P0H7 respectively. I tried to scan it but I kept getting incorrect data. How can I scan the keypad correctly?
I use column as output and row as input.
Please advise me asap
MM