LED Matrix Sand Toy
DIY Digital LED sand that follows physical gravity
Screenshots
Hunter's comment
Simulated physics with LEDs! It looks as if gravity influences the LEDs with every movement. The LEDs move like small grains of sand attracted by gravity. This effect is created by scanning the acceleration sensor with Raspberry Pi Zero. Take a look at the manual and watch the video to better understand the electronics.
The code written by Phillip Burgess simulates physics by calculating collisions and final velocity.
Link
https://learn.adafruit.com/matrix-led-sand/
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