RFID-ACCESS-MANAGEMENT IOT example for RFID for access control and management WIRING LCD LCD NODEMCU (ESP8266) GND GND VCC VIN SDA D2 SCL D1 RFID RECEIVER NODEMCU MFRC522 D4 SDA D5 SCK D7 MOSI D6 MISO GND GND D3 RST 3v 3.3V