MAX7219 Dot Matrix Module For Arduino Microcontroller 4 In 1 Display with 5pin Line

Description:

• The left side of the module to the input port, the right to an output port
• When the control of a single module, simply input port connected to CPU
• When a plurality of cascaded modules, input and output termination CPU, an input terminal of the second output end of the first
• module a module, the first two modules of the input terminal of the three termination modules, and so on…
• 51 microcontrollers, for example:
• VCC 5V
• GND GND
• DIN P2.2
• CS P2.1
• CLK P2.0
• Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.
• And due to the difference between different monitors, the picture may not reflect the actual color of the item