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Digital Fidget Spinner Motor
The first time I saw a fidget spinner, I thought that it was crying out to become a motor. It uses two hall sensors, an electromagnet and a Propeller Flip. The hall sensor at 3 o'clock turns the electromagnet on. the sensor at 8 o'clock starts the magnet off sequence. There is a delay after magnet off, before the magnet actually turns off. The delay is manually controlled by the two pushbuttons in the upper right hand corner. Delay can be varied between 0 and 63 milliseconds. The current delay is shown in binary on the 6 LED's. Maximum speed so far is about 1100 RPM using a delay of 8 ms.