A little toy made in China called the Induction crystal ball uses a pair of coaxial rotors to rise in the air, helicopter-like. It powers the rotors enough to rise for a few seconds, then cuts the power back to gently float down until a proximity sensor in the base of the plastic body comes […] The post Teardown: Induction crystal ball gyrocopter toy appeared first on Electrical Engineering News and Products.
A little toy made in China called the Induction crystal ball uses a pair of coaxial rotors to rise in the air, helicopter-like. It powers the rotors enough to rise for a few seconds, then cuts the power back to gently float down until a proximity sensor in the base of the plastic body comes […] The post Teardown: Induction crystal ball gyrocopter toy appeared first on Electrical Engineering News and Products.
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