In this article we are going to program our Arduino RFID Database Security System. We will configure the Arduino to read the MFRC522 RFID Reader and retrieve the RFID code. The RFID code is then sent thru the ESP8266 ESP-01 through serial communication.
This post discusses how to create an Application that will connect to our database to retrieve valid RFID Codes. This is part of our Arduino RFID Database Security System