Circuit for solving I2C address conflict in PCB multiplexing design

The utility model provides a circuit for solving an I2C address conflict in PCB multiplexing design. Wherein the first PCB device and the second PCB device are used as slave equipment and are completely the same, and the third PCB device is used as master equipment. The first PCB device comprises a first PCB and a first device assembly arranged on the first PCB. The second PCB device comprises a second PCB and a second device assembly arranged on the second PCB; the third PCB device comprises a third PCB and a CPU arranged on the third PCB, the first PCB is provided with a first connector, thesecond PCB is provided with a second connector, the third PCB is provided with a third connector and a fourth connector, the first connector is connected with the third connector in an inserted mode,and the second connector is connected with the fourth connector in an inserted mode. According to the utility model, the problem of I2C address conflict in the PCB multiplexing design is automatically avoided through the plug