This project is an Arduino-based password entry system that uses a 4x4 keypad for input and a 16x2 I2C LCD display to show messages. The system allows users to input a password, which is then ...

Connect the I2C LCD to the Arduino Uno (VCC, GND, SDA, SCL). Use an I2C scanner sketch to confirm your LCD address (0x27, 0x3F, etc.). You can find I2C scanner codes online. After sending the request, ...

An RFID-based attendance system transforms the tedious task of manual attendance tracking into an automated, error-free process. What makes this project particularly exciting is how a few inexpensive ...

The Arduino is a cheap electronics board that allows you to make your own electronics without a ton of coding experience. We love the Arduino, but like any electronics project, coming up with ideas ...