One uses the LiquidCrystal_I2C library (I²C display). The other uses the LiquidCrystal library (parallel display). In the code, set: USE_I2C = 1 for I²C displays (with LiquidCrystal_I2C) USE_I2C = 0 ...

This project implements an RFID-based access control system using an Arduino board, an MFRC522 RFID reader, an I2C LCD display, an RTC (Real-Time Clock) module, and indicator LEDs with a buzzer. It ...

A cool RFID music table has been created using Arduino, iPod, and RFID tags to make it easy to change albums by simply changing the RFID tag. Each RFID tag has an individual code number relating to ...