Give your Arduino the power to read and write RFID cards. Based on the versatile MFRC522 chip, this module allows you to both read and write MiFare-type cards. Can be used for identification applications, tracking inventory, or contactless security lock. Includes one credit-card style tag and one key-fob style tag.
Specifications:· Power voltage: 3.3V
· Working current: 13-26mA
· Idle current: 10-13mA
· Operating frequency: 13.56MHz
· Card type: Mifare1 S50, Mifare1 S70, MiFare UltraLight, MiFare Pro, MiFare Desfire
· Interface: SPI
· Dimensions: 60mm x 40mm
Spec sheet available in PDF format.