Perpetual motion devices are either a gag, a scam, or as in the case of this particular toy that [Big Clive] bought on AliExpress, a rather fascinating demonstration of a contact-free inductive sensor ...
ST’s newest 3-axis motion sensor has been designed to provide acceleration values in the form of absolute analog outputs. Able to operate with any supply voltage in the range of 2.16V to 3.6V and ...