MAX7219 LED Dot Matrix 4 In 1 Display with 5P Line Module – Blue

MAX7219 LED Dot Matrix 4 In 1 Display Module offers a compact and powerful solution for displaying textual and graphical information using microcontrollers like Arduino and Raspberry Pi. This module integrates four 8×8 dot matrix displays, driven by a single MAX7219 serial display driver. By utilizing the Serial Peripheral Interface (SPI), this module significantly reduces the required I/O pins, needing only three lines (Data, Clock, and Load) to control all 256 LEDs. You can daisy-chain multiple modules to create large, expansive scrolling displays without increasing the number of microcontroller pins. Its blue color provides a crisp, modern visual output, making it perfect for dynamic status indicators, scrolling newsfeeds, or interactive gaming displays in your next project.

Key Features:

• 4-in-1 Integrated Display: Combines four 8×8 dot matrix displays (32×8 resolution total) onto a single, easy-to-use module.
• Single Chip Control: Uses the MAX7219 driver, which handles all display scanning, requiring minimal processing overhead from the host microcontroller.
• Efficient Serial Interface: Communicates via 3-wire SPI (CS, DIN, CLK), drastically saving valuable I/O pins.
• Adjustable Brightness: Allows you to control the LED intensity programmatically via a digital interface for use in various lighting environments.
• Daisy-Chain Capability: Easily connect multiple modules in series to create large, continuous displays of any length.

Technical Specifications:

• Driver Chip: MAX7219 (Serial Input Display Driver)
• Operating Voltage: 5 V DC
• LED Color: Blue
• Total Resolution: 32 x 8 Pixels (4 integrated 8×8 displays)
• Interface Type: 3-Wire SPI (Serial Peripheral Interface)
• Max Clock Frequency: ≈ 10 MHz

Mechanical Specifications:

• Display Type: 8×8 LED Dot Matrix Modules (4 modules)
• Mounting: Includes four mounting holes for secure attachment to a chassis or panel.
• Connection: Features a 5-pin male header for primary connection and a 5-pin female header for daisy-chaining.

Dimensions:

• Module Length: ≈ 128 mm
• Module Width: ≈ 32 mm
• Module Height: ≈ 13 mm (including components)
• Weight: ≈ 40 g

Pinout and Wiring:

• VCC: Connect to 5V DC power supply.
• GND: Connect to Ground (0V).
• DIN (Data-In): Connect to the MOSI or Data pin of the microcontroller’s SPI interface.
• CS (Chip Select/Load): Connect to the SS or Load pin of the microcontroller’s SPI interface.
• CLK (Clock): Connect to the SCK or Clock pin of the microcontroller’s SPI interface.

Datasheet Reference:

• Download MAX7219 Serial Display Driver Datasheet

Commonly Used in:

• Hobby Electronics: Prototyping and creating basic interactive display outputs.
• DIY Scoreboards: Building custom displays for games or sports applications.
• Scrolling News Displays: Constructing tickers for real-time data feeds.

Applications:

• Text and Image Scrolling: Displaying dynamic text, logos, or simple animations.
• Audio Visualizers: Creating visual representations of sound levels or frequencies.
• Interactive Games: Serving as the main display for simple arcade-style games.

Equivalent Models:

• MAX7221 Module: A pin-compatible version of the MAX7219 with improved performance in noisy environments.
• Single 8×8 MAX7219 Module: A smaller version used when minimal display area is needed.
• I2C/SPI OLED Displays: Offers higher resolution and graphic capability but typically at a higher cost per pixel area.

Package Includes:

• 1 x MAX7219 LED Dot Matrix 4 In 1 Display Module (Blue)
• 1 x 5-Pin to 5-Pin Connector Cable (Typically ≈ 20 cm)