This is my spinning fan that shows in air It uses an Arduino nano, some leds, a motor, and a hall sensor,when it spins fast, you can show stuff on it Im building it on a vero board because its a relatively simple pcb and I have never triedd working with vero boardsds

https://app.cirkitdesigner.com/project/b7619eda-a46b-44f5-b1fb-f89ff9797e46

It blinks the lights really fast while spinning so your eyes thinks that its all seeing at once It's like a hologram but made with blinking LEDss

Because it’s super cool and I love holograms and its too cheap to build

A magnet tells the Arduino when the circle starts with the hall sensor then it blinks the LED in a special pattern every spin to show the content