Tolako 5v 8x8 LED Matrix Display Max7219 LED Matrix Panel Module Led Driver Board for Arduino

What's better than a single LED matrix can control  Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins,  Here we feel your pain! After all, wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these lovely LED matrix backpacks come in. Module parameters: A single module can drive an 8 x 8 common cathode lattice Operating voltage: 5V. With four 3mm screws hole Module with input and output interfaces, supports multiple modules cascade Package included: 1 x led Matrix