NFC sensor transponder is programmable and ISO 15693-compliant
Designed for industrial, medical, wearables and IoT applications, the RF430FRL15xH NFC sensor transponders are the industry’s first programmable, ISO 15693-compliant 13.56MHz sensor transponder, claims Texas Instrument. The SoC integrates a low-power microcontroller with non-volatile FRAM with the NFC interface with a programmable microcontroller, an ADC and SPI or I²C interface. The dual-interface NFC sensor transponder is optimised for use in passive (battery-less) or semi-active modes for extended battery life in consumer wearables, industrial, medical and asset tracking applications.
Developers can now design products that require an analogue or digital interface, data-logging capabilities and data transfers to an NFC-enabled reader. The transponder acts as a sensor node for these applications and generates an IoT-ready solution when an NFC-enabled device pushes the data to the cloud.
In medical or health and fitness applications, the transponder can be used in disposable patches that sense temperature, hydration and more. This allows patients to monitor and share vital data securely with health providers. The device monitors and logs data in local storage (FRAM) before transferring it to an NFC-enabled tablet or smartphone.
It also allows the design of maintenance-free and hermetically sealed galvanic isolated sensor systems in the industrial markets. These sensors are powered out of the RF field and communicate wirelessly through NFC to collect and log data.
In logistics applications, such as food tracking which needs constant temperature control, products can be monitored and logged with the transponder with integrated data loggers and sensors that connect to NFC-enabled devices and readers throughout the distribution channel.
Wireless communication via the ISO/IEC 15693, ISO/IEC 18000-3 compliant RFID interface is supported. It is optimised for 1.5 V single-cell-battery-powered designs or battery-less designs that harvest energy from the RF field generated from an NFC reader at the same reading distance. Intelligent power management includes a battery switch to ensure long battery life.
The 14bit sigma-delta ADC with low input current, low noise and low offset enables developers to connect up to three additional external sensors in addition to the integrated temperature sensor.
Application code embedded in ROM manages RF communication and sensor readings to provide the ultimate flexibility in configuring the device. Developers can configure sampling rates, measurement thresholds and alarms.
The transponder is integrated into the company’s Code Composer Suite and IAR’s Embedded Workbench IDEs.
Developers can start evaluating this new family of NFC sensor transponders with the new RF430FRL152HEVM evaluation module powered by a battery, USB or by harvesting RF energy from a nearby NFC-enabled reader or smartphone.
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