Here is a 64×64 RGB LED Matrix Panel which can be used with Mega 2560, Raspberry Pi, and other comparable boards to display animations and other info. It has 4096 full-color LEDs that are independently addressable.
Hot Computer Stuff
You are going to need a 5V@5A power supply for this panel.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.