modified: src/main.cpp

src/main.cpp

-#include <Arduino.h>
+
+/*
+ * This ESP32 code is created by esp32io.com
+ *
+ * This ESP32 code is released in the public domain
+ *
+ * For more detail (instruction and wiring diagram), visit https://esp32io.com/tutorials/esp32-rfid-nfc
+ */
+
+#include <SPI.h>
 #include <MFRC522.h>
 
+#define SS_PIN  5  // ESP32 pin GIOP5 
+#define RST_PIN 27 // ESP32 pin GIOP27 
+
+MFRC522 rfid(SS_PIN, RST_PIN);
+
 void setup() {
   Serial.begin(9600);
-  Serial.println("Ich wurde gestartet!");
+  SPI.begin(); // init SPI bus
+  rfid.PCD_Init(); // init MFRC522
+
+  Serial.println("Tap an RFID/NFC tag on the RFID-RC522 reader");
 }
 
 void loop() {
+  if (rfid.PICC_IsNewCardPresent()) { // new tag is available
+    if (rfid.PICC_ReadCardSerial()) { // NUID has been readed
+      MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
+      Serial.print("RFID/NFC Tag Type: ");
+      Serial.println(rfid.PICC_GetTypeName(piccType));
+
+      // print UID in Serial Monitor in the hex format
+      Serial.print("UID:");
+      for (int i = 0; i < rfid.uid.size; i++) {
+        Serial.print(rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
+        Serial.print(rfid.uid.uidByte[i], HEX);
+      }
+      Serial.println();
 
-  delay(1000);
-  Serial.println("Ich funze!");
-}
\ No newline at end of file
+      rfid.PICC_HaltA(); // halt PICC
+      rfid.PCD_StopCrypto1(); // stop encryption on PCD
+    }
+  }
+}