Question: escu 5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key 4x4 KEYPAD char scan_keypad ()

escu 5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key 4x4 KEYPAD char scan_keypad () escu 5. Write the scan_keypad () function which scans the first row or column. It should return the pressed key 4x4 KEYPAD char scan_keypad ()
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