Along the same lines, finding uses for the million white LEDs.
A 7-segment display!
![](https://cdn.hackaday.io/images/8520351552779080589.jpg)
All covered in paste.
![](https://cdn.hackaday.io/images/2106521552779090421.jpg)
All the components soldered down.
![](https://cdn.hackaday.io/images/33761552779124068.jpeg)
And lit up! It's hard to convey in pictures just how bright these are, but you can see the flashlight effect going on on my hand.
![](https://cdn.hackaday.io/images/5044261552779224320.png)
It uses a 74HC595 serial shift register, and I've made a module in Upverter so it's super quick to chain multiple together in a PCB.
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I like. If you want I could whip up a parametric shadow mask for 3D printing for this.
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