How to Connect RFID Scanner to PHP using NodeMcu Wifi Module
In this tutorial, we will learn how to Connect RFID to PHP & MySQL Database with NodeMCU ESP8266. RFID-RC522 Module with NodeMcu ESP8266 and then I'm sending data of RFID to MySQL Database. we are just reading the serial data coming from NodeMCU ESP8266 and then publishing that to MySQL Database through PHP code. This project can store the Credentials of Students or Employees. Connect RFID to PHP