Feature Small dimension and easy to embed into your projectSupport I2C SPI and HSU High Speed UART easy to change between those modesSupport RFID reading and writing P2P communication with peers NFC with Android phoneUp to 5cm 7cm reading distanceOn board level shifter Standard 5V TTL for I2C and UART 3 3V TTL SPIcompatible plug in and play with our shieldSize 43 40mmRFID reader writer supports Mifare 1k 4k Ultralight and DesFire cardsISO IEC 14443 4 cards such as CD97BX CD light Desfire P5CN072 SMX Innovision Jewel cards such as IRT5001 cardFeliCa cards such as RCS 860 and RCS 854Package included 1 x PN532 NFC RFID Module1 x 2 54mm spacing 4pin Cable1 x Mifare One S50 White Card1 x Mifare One S50 Key Card1 x Bended male pins