I’ve been working on a giant RGB LED Display recently. The video above shows you some test animations running through the display.
Currently the display is 25 x 17 in size and will be expanded to be 25 x 25 LEDs in total.
The display is made up of WS2812 Neopixel strips powered by a 20A 5v PSU. Animations are generated by Jinx! LED control software and then sent over WiFi using the tmp2.net protocol to an ESP8266 connected to the RGB strips.
The LEDs will have a grid overlaid on top of them to isolate each LED and finally a thin white acrylic layer will go on top to diffuse them. Keep an eye on this project for further updates.