The development of antennas for RFID tags requires measurement of the parameters; as well as, the response of these to be questioned by a reader, the variation of the parameters with simulation tools ...

How to Run Hardware Setup: Connect RC522 RFID module to ESP8266 (NodeMCU) Connect buzzer, LEDs, and optional OLED/LCD display Power via USB or battery pack Connect RC522 RFID module to ESP8266 ...