An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

This Arduino UNO project uses an RFID reader, a servo motor, a buzzer, an LCD display, and a 3x4 keypad to create a lock and key system that is able to store a password and two slots for ...

Arduino UNO/Nano/Mega operates at 5V logic. However, the MFRC522 works at 3.3V logic level, and is not 5V tolerant. If using one of these microprocessors: The solution to both a.) and b.) is trivially ...