4x4 keypad

Interfacing I2C LCD and 4 x 4 keypad with Raspberry Pi Zero W Interfacing I2C LCD and 4 x 4 keypad with Raspberry Pi zero W

The Raspberry Pi Zero W is the new and improved upgrade of Raspberry Pi Zero family. In this getting started series for…

Li-Fi based Text Communication between Multiple Arduino Li-Fi based Text Communication between Two Arduino

Li-Fi (Light Fidelity) is an advanced technology that allows transferring data using optical communication such as visible…

Arduino based Countdown Timer Arduino Countdown Timer

A timer is a type of clock used for the measurement of time intervals. There are two types of timer, one which counts upwards…

Arduino Calculator using 4x4 Keypad Arduino Calculator using 4x4 Keypad

Programming is always fun and Arduino is a wonderful platform if you are just getting started with Embedded programming. In…

How to Send Data to Web Server using Arduino and SIM900A GPRS/GSM Module How to Send Data to Web Server using Arduino and SIM900A GPRS/GSM Module

Today we are here with an interesting project in which we will Send Data to the SparkFun server using Arduino and GPRS. This is…

Call and Message using Raspberry Pi and GSM Module Call and Text using Raspberry Pi and GSM Module

In this DIY project we are going to build a Simple Mobile Phone using Raspberry Pi, in which GSM Module is used to Make or…

4x4 Keypad Interfacing with AVR Microcontroller (ATmega32) 4x4 Keypad Interfacing with ATmega32 Microcontroller

In this tutorial we are going to interface a 4x4 (16 key) keypad with ATMEGA32A microcontroller. We know that keypad is one of…