Bluetooth electronic tag

A BLUETOOTH electronic tag, comprising:

• an upper cover and a substrate, wherein a circuit board is disposed on the substrate, and an electronic tag control circuit is disposed on the circuit board;
• the electronic tag control circuit comprises a power circuit, a power protection circuit, a main control circuit, a BLUETOOTH transmission circuit, an identification circuit, and an electronic tag circuit;
• wherein the power circuit is configured to provide power to the main control circuit through the power protection circuit;
• the main control circuit is configured to control the identification circuit through the BLUETOOTH transmission circuit, and the identification circuit is configured to transmit identification information to the electronic tag circuit;
• wherein the upper cover and the substrate form a closed cavity, and the power circuit comprises a battery disposed in the closed cavity;
• and the main control circuit comprises a single chip microcomputer and a memory stored with a plurality of identification information, the single chip microcomputer is configured to select target identification information from the plurality of identification information stored in the memory, and transmit the target identification information to the identification circuit through the BLUETOOTH transmission circuit, and the identification circuit is configured to transmit the target identification information to the electronic tag circuit.