It doesn't sound fun but it is! It turns out that the standard 8x8 LED matrix is not so easy to use because of all the wiring required and all the Arduino pins that are used - hence there aren't a lot ...

8×8 LED Matrix modules are now widely available, and fortunately they are easy to use with our favorite Arduino microcontroller. 8×8 LED Matrix module have many applications in real life, such as ...

This is the back side of [Dmitry Grinberg’s] 8×8 LED matrix pendant. He had seen the other projects that used a 5×7 grid but wasn’t really satisfied with the figures that can be drawn in ...