Tag: arduino keypad

Tutorial: How to use 4x4 Keypad | Arduino

Keypad is commonly use in devices like ATM machine, microwave oven, safety vault, security door lock, and many more. In this tutorial we will focus on the most popular to electronics enthusiasts and tinkerers which is a 4×4 matrix keypad. We will discuss how it works and at the last we will provide an example […]

Read more Tutorial: How to use 4x4 Keypad | Arduino

Project Idea: Door Lock Security | Arduino

In this project, we will create a door lock security system using an Arduino. The idea is as follows: The door lock is controlled by entering the correct password. If user password entered is correct, open the door lock If user password entered is wrong, an alarm will be triggered (alarm sound and flashing of […]

Read more Project Idea: Door Lock Security | Arduino