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RFID tags talk to electronic appliances through I2C interface

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By eeNews Europe

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The I2C interface enables other circuits mounted on the customer’s equipment to be read using an UHF RFID-Reader/Writer, via the RFID chip making the connection. The data in the RFID device can also be read by an IC, enabling the management of memory settings in consumer appliances prior to shipping.

The settings of equipment can be changed even when it is packaged in a carton box immediately before shipment. The I2C interface extends the possible applications far beyond the typical use cases of previous Magicstrap RFID tags which were confined to process management, commodity management or traceability.
The tag could retrieve appliance error log data from an internal MCU, or could record environmental data such as temperature changes in food service supply chain logistics applications and communicate it to an appropriate RFID reader/writer, even when the equipment is malfunctioning or switched off.

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