Closing of Olimpic games ceremony LED lights in crowd

[djixon]

I am wandering is that achieved with ESP32 controllers?

Each visitor of closing ceremony got a LED light bracelet and all of them were in sync allowing formation of "audience BIG LED PANEL"

Here is official video of ceremony ..... interesting part starts at 1h and 25 minutes.

https://www.youtube.com/watch?v=Eg5CG7lV-Wo

Can that be made even better with mesh networking or some other mechanism for sync? Some ideas?

[aliarifat794]

Sorry, the vid looks unavailable in my country. Is it possible for you to attach a picture from a screenshot?

[djixon]

https://youtu.be/jcB7QA5N7CE?feature=shared try this one.... it is at 8 minutes and 10 seconds