This clock not only displays the time but also interacts with our motion and look like they’re affectted by gravity. This matrix clock displays some of LEDs as little grains of sand which are driven by a MPU6050 (Accelerometer + Gyro) and NODEMCU-32S.
Youtube link: https://www.youtube.com/watch?v=lYinMkkyPOc
Instructables: https://www.instructables.com/id/INTERACTIVE-INTERNET-CLOCK/