LED Matrix Hourglass 

Build a beautiful 3d printed hourglass physics toy using LED matrix and Feather Sense. Use CircuitPython to simulate particle collision code on a small microcontroller packed with tons of sensors. With Built-in lipo charging over USB, your projects can be small and portable!
This was inspired by the LED Hourglass project by @david_proyectos / b_vdsapac-j
Learn guide
learn.adafruit.com/led-matrix...
Code on Github
github.com/adafruit/Adafruit_...
Feather Sense
www.adafruit.com/product/4516
Mini 0.8in Yellow LED Matrix and Backpack
www.adafruit.com/product/871
Small 1.2in Yellow LED Matrix and Backpack
www.adafruit.com/product/1050
400mah Battery
www.adafruit.com/product/3898
Slide Switch
www.adafruit.com/product/805
4pin JST-SH cable
www.adafruit.com/product/4397
4pin JST-SH connector
www.adafruit.com/product/4208
10-wire silicone cable
www.adafruit.com/product/3890
1.75mm Silk Gold PLA
amzn.to/2NXPHvV
2.85mm Silk Gold PLA
amzn.to/2Z3WSZF
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