The code is in BASCOM-AVR for atmega16 microcontroller . In this code, the numbers entered by the Keypad and apply summation and multiplication and subtraction and division are performed and displayed in LCD .-The code is in BASCOM-AVR for atmega16

This file contains a calculator circuit schematic atmega16 AVR Microcontroller and LCD AND Keypad in the Proteus.-This file contains a calculator circuit schematic atmega16 AVR Microcontroller and LCD AND Keypad in the Proteus.

this about the RFID keypad GSM SERIAL LCD package library for the quick connection into system developement