Toy apparatus has a base unit 400 and a separate toy piece 100. The base unit 400 has a surface 411, an inductor 420 located behind the surface 411, and a driver circuit 430 for driving an electrical current through the inductor 420 for energizing the inductor 420 to create a magnetic field that penetrates out through the surface 411. The toy piece 100 has a body 110, a sensor 120 located in the body 110, and an event generator 130, such as an LED 130A associated with the sensor 120 for in operation generating an event, such as a light event, when the body 110 is moved close to the surface 411 of the base unit 400, with the sensor 120 being subject to said magnetic field.

Wan Chang Cheung

Papers

Toy play set with inductive sensor