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So you finally decided to hop on the Arduino bandwagon and start making electronic projects as a fun hobby. As a beginner getting started with Arduino, your first instinct is typically to buy a ...

MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance. for (byte i = 0; i < mfrc522.uid.size; i++) Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0 ...