MAX 7219 is a common cathode display driver with serial input and parallel output. It is used to interface microprocessors and microcontrollers with 64 individual LEDs (8 x 8 LED matrix for example has 64 LEDs), seven segment LED displays up to 8 digits or bar graph displays.
Module operating voltage: 5V.
Module size: 5 cm long X 3.2 cm wide X 1.5 cm high.
Led colour: Red.
Module with input and output interfaces, supports multiple modules cascade.
The module left as an input port to the output port on the right.
The control of a single module, simply input port to the CPU.