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A project log for Do or Donut SAO

donut shaped LED matrix SAO

davedarkodavedarko 11/27/2019 at 19:452 Comments

The title says it pretty much, but I had some trouble getting somewhat reasonable priced IS31FL3731 in SSO, while you can get the QFN version just anywhere. My current BOM for one donut is around 7 Euros now, which still seems reasonable. 800 LEDs in 0603 are coming my way, too. Hundreds of red, yellow, orange, green, blue, white, pink and purple. 

Discussions

de∫hipu wrote 11/27/2019 at 19:57 point

I like to put the qfn footprint inside the ssop, this way I can use whichever is cheaper/easier to get.

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davedarko wrote 11/27/2019 at 20:21 point

yeah, not as much space there anymore, sadly :|

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