Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Type: Module _x005f_x000D_ Condition: New _x005f_x000D_ Supply Voltage: 3.3V to 5.5 V _x005f_x000D_ Model Number: NFC Card Reader Module _x005f_x000D_ 1. Based on PN532 chip for 13.56MHz near field communication. _x005f_x000D_ 2. The module is equipped with an on-board antenna, no external antenna coil is required, and the module is compatible with SPI, I2C, and UART interfaces for communication. _x005f_x000D_ 3. With the NFC library supporting Arduino and Raspberry Pi, it can be easily used for the development of NFC-enabled products. _x005f_x000D_ 4. Support SPI, I2C and UART interface selection switching _x005f_x000D_ 5. Effective communication distance within 5cm _x005f_x000D_ 6. Can be used for 13.56MHz contactless communication. _x005f_x000D_ 7. Compatible with ISO14443 Type A and Type B standards _x005f_x000D_ 8. Compatible with Std Raspberry Pi 20Pins interface _x005f_x000D_ Special Tips: _x005f_x000D_ 1. If there is a phenomenon that the programme can be compiled but cannot be uploaded successfully: to rule out the failure of the development board, you can first upload the programme to the development board successfully, then connect the card reader module and press the button. _x005f_x000D_ Then connect the card reader module, press reset, and then continue debugging. _x005f_x000D_ 2. The toggle switch settings are different for different communication modes. Remember. _x005f_x000D_ Operating Voltage: 3.3V _x005f_x000D_ Maximum working current: 150mA _x005f_x000D_ Operating current (standby mode): 100mA _x005f_x000D_ Operating current (card writing mode): 120mA _x005f_x000D_ Operating current (card reading mode): 120mA _x005f_x000D_ Size: 78x48x12mm/3.07x1.89x0.47inch _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x PN532 Module 1. User-Friendly Operation: This NFC card reader module is designed for easy and intuitive operation. With its simple interface and clear instructions, it allows for hassle-free access to NFC functionality. 2. Multiple Interface Options: Enjoy versatile connectivity options with this NFC reader writer module's support for various interface selections. It allows for seamless switching between different modes, providing flexibility and convenience in your NFC projects. 3. 13.56MHz Near Field Communication: Specifically designed for 13.56MHz near field communication, this NFC RFID reader writer shield enables secure and convenient data exchange between devices. Unlock the potential of NFC technology for a range of applications. 4. Based on PN532 Chip: Built with the PN532 chip, this near field communication reader ensures reliable and efficient 13.56MHz NFC communication. It features an onboard antenna, eliminating the need for external antenna coils. The module is compatible with SPI, I2C, and UART interfaces for seamless communication. 5. Development for Arduino and Raspberry Pi: With NFC library support for Arduino and Raspberry Pi, this contactless communication module facilitates the development of NFC-enabled products. Utilize the capabilities for Arduino and for Raspberry Pi platforms to easily integrate NFC functionality into your projects.