A LEGO cylindrical Display using the persistence of vision (POV) principle to render text using a column of LED's spinning on an arm.
The device can display images and text, controlled by a computer via Bluetooth. A snap later and it is MQTT enabled (www.mqtt.org).
Excuse the flickering, it is smooth in real-life. This is a result of aliasing between the device and the camera.
http://www.doc.ic.ac.uk/~sl203/?id=30
except not volumetric
drbobdobalina 2 years ago