Also, the second picture is a video link with the correct URL.
bensmoif 1 hours ago [-]
It's stunning. The video speaks for itself. Please scale this up, like way up back of a truckbed size. This would be delightful to see spinning and running IRL.
Then get a grant and make one as wide as a city street
CrzyLngPwd 52 minutes ago [-]
Okay, that is genuinely amazing.
Love it, thank you for sharing and for being inspiring :-)
josh-wrale 2 hours ago [-]
I can see this being applied to hubcaps in the future.
lagrange77 3 hours ago [-]
Absolutely fantastic!
The video URL doesn't seem to be correct, through. ;)
mysterydip 3 hours ago [-]
> Avoid use in operations.
Oops
lstodd 40 minutes ago [-]
about the same idea as nipkow disk
nowadays when people don't want to go the rotating led bar way, which requires very high density led strips (hundreds of ~200-400 mil smd leds) and the accordingly complex control circuitry (basically an FPGA per bar + high speed bus, etc), they do nipkow disk but with individual leds instead of holes. this way you can get away with tens of leds while still having a reasonable sized picture and not that much bandwidth to drive it.
edit: another, less sophisticated take is for example
From git history on the readme.md
Then get a grant and make one as wide as a city street
Love it, thank you for sharing and for being inspiring :-)
The video URL doesn't seem to be correct, through. ;)
Oops
nowadays when people don't want to go the rotating led bar way, which requires very high density led strips (hundreds of ~200-400 mil smd leds) and the accordingly complex control circuitry (basically an FPGA per bar + high speed bus, etc), they do nipkow disk but with individual leds instead of holes. this way you can get away with tens of leds while still having a reasonable sized picture and not that much bandwidth to drive it.
edit: another, less sophisticated take is for example
https://hackaday.io/project/191947-rotating-led-display/deta...