RFID Integration into a Low Power Sensor Platform

Beyond identification purposes, RFID (Radio Frequency Identification) is an elegant way to transmit wireless sensor data. There are several RFID transponder ICs on the market, but for the data read out of the sensors, a low power microcontroller (µC) with a specific functionality is also often a necessary part of the system. So we present an easy way to integrate the functionality of the RFID transponder directly into the microcontroller. This reduces costs and minimizes the PCB footprint. In particular, an implementation of an RFID tag, compatible with ISO/IEC 14443-2, Type B, into a commercial low power µC is demonstrated.