3pcs NFC Shield RFID RC522 Module RF IC Card Sensor + S50 RFID Smart Card for UNO/Mega2560 OPEN-SMAR

.size_table_start table,.size_table_start table tr td { border:2px solid #ddd;}.size_table_start table { width: 100%; min-height: 25px; line-height: 25px; text-align: center; border-collapse: collapse;}.size_table_start,.size_table_end {clear:both;} Description: 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 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 UNO3 / MEGA2560 . - Very easy to use with the libary 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 - Current: <50mA - Operating Frequency: 13.56MHz - Supported card types: S50, S70, Pro, DESFire - Data transfer rate: maximum 10Mbit/s Package includes: 3 x NFC Shield