MAX7219 4-in-1 LED Dot Matrix Module

The MAX7219 4-in-1 LED Dot Matrix Module is a compact display board built from four cascaded 8×8 LED matrices, giving you a total of 256 individually addressable LEDs arranged in a 32×8 grid. Each 8×8 segment is driven by its own MAX7219 common-cathode display driver IC, which handles all the multiplexing and refresh work internally, so your microcontroller only needs a simple 3-wire serial interface to control the entire display. This makes it a popular choice among hobbyists, students, and makers building scrolling text signs, message boards, pixel art displays, VU meters, and other visual indicator projects with Arduino, ESP32, or Raspberry Pi. Multiple modules can be daisy-chained together to build larger display panels, expanding both message length and visual complexity without adding extra microcontroller pins. Each MAX7219 driver also offers adjustable brightness control, a low-power shutdown mode, and individually addressable digits, allowing you to update parts of the display without redrawing the entire matrix. With red LEDs, a common cathode configuration, and clearly labeled input and output headers for easy chaining, this module is straightforward to wire and well supported by widely available Arduino libraries. Reliable, cost-effective, and easy to expand, it’s an excellent building block for anyone exploring LED matrix displays and text scrolling projects.

Specification:

• Driver IC : MAX7219 (x4)
• Display Resolution : 32 x 8 (256 LEDs)
• LED Color : Red
• Interface : 3-Wire Serial (SPI-Compatible)
• Operating Voltage : 5V DC
• Cascade Support : Yes, Daisy-Chainable