MAX7219 8 x 8 Dots Led Matrix Module MCU LED Display Controller Module for Arduino 5V Interface Module Output Input Common Cathode

Parameters: 1.Led Colour: Red 2.Module Operating voltage: 5V. 3.Module Size: 5 cm X 3.2 cm X 1.5 cm 4.A single module can drive an 8 * 8 common cathode lattice.5.With four screws hole, aperture 3mm, by using our M3 Tongzhu fixed.6.Module with input and output interfaces, supports multiple modules cascadeWiring instructions: 1.The module left as an input port to the output port on the right.2.The control of a single module, simply input port to the CPU3.Multiple modules cascade input termination CPU, 2 output termination module, a module of the input of the input terminal, the output terminal of the first two modules of the first three modules, and so on ... 51 MCU, for example: VCC 5V GND GND DIN P22 CS P21 CLK P20 Package Included: 1 X MAX7219 8X8 Dots Led Matrix Module