I can use keypad for input as | Microcontroller › 8051 › Project guidance › I can use keypad for input as April 22, 2011 at 1:57 pm #6021 FARRUKHParticipant I can use keypad for input as in casio calculator for matrix mode that shows its output on LCD.Now anyone can help me in its circuit coz I dont know what to attach exclusive of 8051,keypad & lcd
