MAX7219 8-Digit LED Display Module

Specifications:

• MAX7219 digital display control module 7 Segment Digital Tube
• This module is compatible with 5V and 3.3V microcontrollers.
• You you can use it for Arduino
• MAX7219 is an integrated serial input / output common-cathode display driver,
• which connects your microprocessor to a 7-segment digital LED display with 8 digits.
• Only three IO ports are used to drive the eight digit display.
• MAX7219 supports flicker free displays as well as cascading displays.

Wiring instructions(for example, it can connect any IO port,modified the Port Definition in the program):

• VCC: 5V
• GND: GND
• DIN: P00
• CS: P01
• CLK: P02