HN Theater @HNTheaterMonth

The best talks and videos of Hacker News.

Hacker News Comments on
Reactive LED Coffee Table - Arduino 2

yohash84 · Youtube · 4 HN points · 0 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention yohash84's video "Reactive LED Coffee Table - Arduino 2".
Youtube Summary
Completion of a project. Two 24" x 26" boards (pegboard) filled with 818 blue LEDs, 160 IR emitters, and 190 IR receivers. All organized into 190 "nodes" and powered by two Arduino micro-controllers. I built the coffee table and sized the inner cabinet to accommodate these pegboard reactive surfaces. The array of white lights that you see when there are no blue LEDs on are the infrared (IR) emitters. This portion of the light spectrum is invisible to the naked eye, but digital cameras can pick them up. Simply: in person, you would not see any light until you interact with the table.

The two pieces of pegboard (as well as a good view of the wire "nest" beneath them) can be seen during testing here: http://youtu.be/ZO-9DszzpI8

The original prototype board can be seen here: http://youtu.be/oKPUU21ReZg
This link also contains a vast amount of information such as motivation/inspiration, similar projects by others, and more on components used.

IR-LED "node" power requirements determined with (led.linear1.org/led.wiz) - Good helper tool!

Another video of the finished product taken with an older camera can be seen here: http://youtu.be/xkohbr9ApMo

The "making of" video: http://youtu.be/fxkEPKGgv8o
HN Theater Rankings

Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.
Apr 21, 2021 · 4 points, 1 comments · submitted by yellowyacht
celesti
Would be fun for chess or other board games!
HN Theater is an independent project and is not operated by Y Combinator or any of the video hosting platforms linked to on this site.
~ yaj@
;laksdfhjdhksalkfj more things
yahnd.com ~ Privacy Policy ~
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.