This embedded systems project plays the Godfather theme using a piezo buzzer and 16x2 I2C LCD display, driven by an Arduino Uno. All tones are generated through direct I/O control using AVR assembly, ...

🔐 RFID-Based Access Control System A simple, Arduino Uno–based RFID access control prototype that reads an RFID tag (using the MFRC522/RFID-RC522 module), displays tag UID on a 16×2 LCD, and grants ...

The aim of this work is to study the structure and properties of the binary LCD codes having an automorphism of odd prime order and to present a method for their construction.