(keypad: columns and rows switching) So now you can see how the button presses can be translated into electrical data for use with a microcontroller. We can now start the real experiment with as ...

This project is a password-based door lock system implemented using Arduino Uno microcontroller. The system utilizes a 4x3 keypad, a 10k potentiometer, a 16x2 i2c LCD display, a servo motor, a 5V ...

If you are new to RFID, then follow this tutorial | RFID basics and RFID module interfacing with Arduino The I2C LCD communicates with the Arduino through the I2C protocol. Different Arduino boards ...