Okay, this #matrix #digitalrain #effect is pretty cool: https://www.youtube.com/watch?v=i6gGK4L4.. There is some #documentation and #links over on #hackaday detailing how insanely simple this #hack is to pull off! https://hackaday.com/2021/11/17/arduino-.. Looks like it can be easily done on an #esp 8266 or ESP32 device!