Our project is infact an Arduino with Serially Interfaced MAX7219 Operates an 8X8 LED Matrix to display a heart pattern. The MAX7219 IC is a serial input/output common-cathode display driver that ...

A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open ...

Project Description A secure door lock system using Arduino Uno, RFID (MFRC522), and a 4x4 Matrix Keypad. Authorized users can unlock the door with either an RFID tag or a PIN code.

Watch the video below to learn more about his Arduino-based portable keypad that connects to your Arduino development board and offers the complete alphabet, numbers 0-9 as well as several commands.

DESCRIPTION : This project demonstrates how to interface a 4x4 matrix keypad with an LCD (16x2) display using an Arduino board. The system captures key presses from the user via the keypad and ...