Keypad scanning and interfacing with PIC16f877 microcontroller




Here I give you very important and simple project on Keypad / keyboard scanning and interfacing with PIC16f877microcontroller . To start big project you need to know small and necessary one first. So we start form basic . In my previous post I write on

Scrolling Text on LCD by PIC Microcontroller

Displaying text on LCD by interfaced with PIC16F877 microcontroller in 4 bit mode

Simple Project on LED blinking by PIC 16 Microcontroller

Step by step Project guide on PIC Microcontroller

 

Keypad scanning and interfacing with PIC16f877 microcontroller schematic

 So today I start with Keypad scanning and interfacing with PIC16f877 microcontroller. As like my other projects I used 1 ) Proteus 7 Professional and 2) Mikcro C Pro for pic to make my project.

In this project we will see some new command for interfacing 4*4 matrix keypad / keyboard.

 char  keypadPort at PORTC : is use for defining port of microcontroller with keypad. Here we defining port C for that.

Keypad_Init()  :  is use for initializing.

Keypad_Key_Click() : is use for wait for key to be pressed and released.

 Now see the complete Embedded C Programing of our project Keypad scanning and interfacing with PIC16f877 microcontroller

 

For more detail: Keypad scanning and interfacing with PIC16f877 microcontroller




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