A chessboard toy is provided. A first driving coil is arranged on an inner ring of a knob, and a second driving coil is arranged on a rotating member; and the first driving coil and the second driving coil mesh with each other, so that a rotation sensing member can be controlled by direct mechanical transmission; mechanical motion of the knob can be converted into an electrical signal of the rotation sensing member; and use of a light sensing mechanism or a magnetic sensing mechanism is avoided. Therefore, structural complexity and a fault rate are reduced. In addition, compared with the light sensing mechanism and the magnetic sensing mechanism that have high costs, a technical solution can also significantly reduce production and manufacturing costs.

A chessboard toy is provided. A first driving coil is arranged on an inner ring of a knob, and a second driving coil is arranged on a rotating member; and the first driving coil and the second driving coil mesh with each other, so that a rotation sensing member can be controlled by direct mechanical transmission; mechanical motion of the knob can be converted into an electrical signal of the rotation sensing member; and use of a light sensing mechanism or a magnetic sensing mechanism is avoided. Therefore, structural complexity and a fault rate are reduced. In addition, compared with the light sensing mechanism and the magnetic sensing mechanism that have high costs, a technical solution can also significantly reduce production and manufacturing costs.