How to interface keypad with AVR microcontroller (ATmega16)
Keypad is most widely used input device to provide input from the outside world to the microcontroller. The keypad makes an application more users interactive. The concept of interfacing a keypad with the ATmega16 is similar to interfacing it with any other microcontroller. The article of Interfacing keypad with 8051 can be referred for detailed description of the methodology used here. This article explains the interfacing of a 4×3 keypad with AVR microcontroller (ATmega16) and displaying the output on a LCD.
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