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I made a small LED panel

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154 points Brajeshwar | 2 comments | 09 Oct 25 15:31 UTC | HN request time: 0.48s | source
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scottbez1 ◴[21 Oct 25 02:43 UTC] No.45651902[source]▶
On the topic of small LED panels, Jason of Evil Genius Labs has been making some really small LED panels [0] with addressable 1mm x 1mm LEDs (yes, individually addressable AND only 1mm on each side!). Fitting 128 onto a 1" circle is pretty sweet.

I keep meaning to design some PCBs with them [1] but it's too far down my ever-growing list of projects to see the light of day...

[0] https://www.evilgeniuslabs.org/one-inch-fibonacci128

[1] https://www.lcsc.com/product-detail/C5349953.html

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karlkloss ◴[21 Oct 25 07:28 UTC] No.45653356[source]▶
https://spotpear.com/shop/ESP32-S3FH4R2-Matrix-8x8-RGB-LED-W...
replies(1): >>45654465 #
zokier ◴[21 Oct 25 11:05 UTC] No.45654465[source]▶
Those look like normal 2.5-3mm LEDs, that is big difference to 1mm² LEDs. The circle disc from OPs link has 2.5x higher LED density, and they could be probably packed even more densely in a grid.
replies(1): >>45666727 #
1. karlkloss ◴[22 Oct 25 09:37 UTC] No.45666727[source]▶
Looks like they're WS2812B-2020, like on this PCB:

https://www.wemos.cc/en/latest/d1_mini_shield/8x8_rgb.html

replies(1): >>45666734 #
2. karlkloss ◴[22 Oct 25 09:37 UTC] No.45666734[source]▶
BTW: The 2020 are super bright, but the 1010 not so much.