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Passive sol'n allows NFC interaction with electronic devices

Posted: 19 Sep 2014 ?? ?Print Version ?Bookmark and Share

Keywords:NXP Semiconductors? NFC? I2C interface? wearable? home automation?

NXP Semiconductors N.V. has released what it says is a complete passive solution for near field communication (NFC) interaction for a range of applications such as home appliances, consumer electronics, wearable technology and home automation. By combining a contactless NFC interface with a contact I2C interface and on-board non-volatile memory, the NTAG I2C solution allows new kinds of NFC tag interactions such as advanced device pairing, personalisation of electronic devices and device maintenance.

While existing NTAG solutions can only interact with NFC-enabled devices, the NTAG I2C memory can be accessed via the existing embedded microcontroller of any electronic device.

Optimised for very low-power operation, the passive NTAG I2C solution is capable of energy harvesting from the mobile device to power external circuitry such as low power MCUs. It also includes a field-detect function for automatic power-up, so that the mobile device's battery is not drained during standby while waiting for a NFC phone. As the first fully ISO 14443A/NFC Forum Compliant Type 2 tag chip with I2C interface and energy harvesting with on board EEPROM, the NTAG I2C solution ensures compatibility with all NFC-enabled devices and allows data to be saved even if the power supply is lost. These features combined make the NTAG I2C particularly well suited for the configuration, calibration or customisation of wearable devices.

The NTAG I2C features a specific pass-through mode, which allows the device to serve as an easy to integrate communication pipe for unlimited bi-directional data exchange between the feature-rich NFC device, which may have a connection to the cloud and an advanced user-interface/display, and the electronic devices. The device is also fully supported by the recently released MIFARE SDK. Designed to provide access to all hardware features on Java level, the MIFARE SDK streamlines the development of Android apps to interact with NTAG devices, added NXP. The SDK allows Android app developers to concentrate efforts on designing creative apps for various applications that support the Internet of Things (IoT) and wearable technology.

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