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NFC Shield RFID-RC522 RF IC Card Sensor Kit for Arduino UNO / Mega2560
The NFC Shield features a transceiver module£¬ MFRC52£¬ which handles wireless communication at 13.56MHz£¬ this means that you can read and write a 13.56MHz tag with this shield. It also lead out the UART interface which can be connect with Serial Bluetooth module or Serial Wifi module£¬ Serial MP3 Player module and D3 / D4 port that can connect to I2C OLED module. Features: - Standard shield interface£¬ perfectly compatible with Arduino UNO / MEGA2560 . - Very easy to use with the library for Arduino: RFIDMaster. - Operating voltage: 4.5~5.2V - Interface logic level: Onboard level converter chip£¬ compatible with 3.3V / 5V. - Operating current : 13-26mA - Idle current : 10-13mA - Sleep current: <80uA - Peak current: <50mA - Operating Frequency: 13.56MHz - Supported card types: mifare1 S50£¬ mifare1 S70 MIFARE Ultralight£¬ mifare Pro£¬ MIFARE DESFire - Data transfer rate: maximum 10Mbit/s Application: Smart home project£¬ Voice broadcast access control system£¬ Attendance punch card system.