alt Hacker NewsI want a mesh grid of LEDs that I can lay across the house maybe with 6” between each one so I get a low res screen of dots and then play Die Hard on it to see if people figure it out. It would kind of be like a TV but with 9 out of 10 pixels missing, more or less.
You could use ws28xx/skxx based addressible strips laid out in rows. Usually WLED would be recommended to drive it, but for playing a video, the teensy fastled library comes with a demo specifically doing what you discuss with a film.
https://quinled.info/2019/06/03/what-digital-5v-12v-rgbw-led... good intro to the subject.