Beats coal. Before you regift it to your niece, you could repurpose it to be a motor. Technically, [B.Aswinth Raj] made a brushless motor, although it isn’t going to fly your quadcopter anytime ...

Brushless motors are ubiquitous in RC applications and robotics, but are usually driven with low-cost motor controllers that have to be controlled with RC-style PWM signals and don’t allow for ...