Tag: keypad

Dejan Nedelkovski had built an Arduino security and alarm system project that uses an ultrasonic sensor for detecting objects and a buzzer for notification. Components needed to build this simple system are: Arduino board, LCD display, 4x4 keypad, ultrasonic sensor and buzzer. The...

In this tutorial we are going to learn some basics on using Keypad 4x4 on Arduino. by mybotic @ instructables.com This keypad consists of 4 rows x 4 columns of buttons. It is ultra-thin that it provides an useful human interface component for microcontroller projects. Convenient...

EswarD2 @ instructables.com has build an Arduino based door lock using Arduino UNO, a keypad and a servo motor. This a door lock built as fun project.It is quite easy to build and a fun way to learn and improve your knowledge of arduino.I tried to add a 16*2 display but there werent...