A method of applying an RFID electronic tag with an IIC interface

This method retains the original identity identification function of RFID electronic tags while adding an external interface, supporting IIC-bus protocol, based on modular design and the RFID chip radio frequency, tiggers pins and communication interfaces to interact with external devices such as readers and main controllers. When the RFID electronic tag is working, the interrupt signal is triggered and transmitted to the master controller. After the master controller wakes up after receiving the interrupt signal, the master controller can obtain the data in the memory area of the tag chip through the IIC interface and directly perform the relevant operations. In addition, the trigger signal of the electronic tag can also be used for switching circuit control and other scenarios. This method realizes the organic combination of RFID electronic tags and the master controller. Compared with the use of Bluetooth, WIFI and other communication modules, it has the advantages of lower power consumption, lower cost and stronger environmental adaptability, and has expanded functions such as parameter presetting in the case of device power failure.