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MAX7219 Dot Matrix 4-in-1 LED Display Module – 8x32 Serial Matrix with 5-Pin Jumper Wire

MAX7219 Dot Matrix 4-in-1 LED Display Module – 8x32 Serial Matrix with 5-Pin Jumper Wire

ParameterDetailed Specification
Driver ICMAX7219 (Common Cathode)
Matrix Type4-in-1 (Four 8x8 Matrices)
Total Resolution32 Columns x 8 Rows (256 LEDs)
Operating Voltage5V DC
Communication3-Wire Serial SPI (DIN, CS, CLK)
Dimensions12.8 cm x 3.2 cm x 1.3 cm
Fixing Holes4 Holes (3 mm Diameter)
Daisy ChainableYes (Supports multiple modules)
                                 Price

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₹ 279.66 ₹ 279.66
(Tax included)

Barcode: 378789

Product Description

Add dynamic visual feedback to your projects with the MAX7219 LED Dot Matrix 4-in-1 Display. This module integrates four 8x8 dot matrix units into a single 8x32 display panel, controlled by the powerful MAX7219 serial input/output common-cathode driver IC. At Robogears, we recommend this module for its high-efficiency serial interface, which allows you to control all 256 LEDs using only three data pins from your microcontroller. This makes it a perfect solution for scrolling text displays, digital clocks, and status indicators in your Arduino or Raspberry Pi builds. The module comes with pre-soldered input/output headers and a 5-pin female-to-female jumper wire, enabling immediate "out-of-the-box" connectivity.

Detailed Key Features

  • Integrated 4-in-1 Array: Combines four 8x8 matrix units into a seamless 32-column display for scrolling text and complex animations.

  • Simplified Serial Interface: Employs a 3-wire SPI communication protocol (DIN, CS, CLK), significantly reducing the number of I/O pins required on your controller.

  • Individual LED Control: The MAX7219 IC handles all BCD decoding and multiplexing, allowing you to address each of the 256 LEDs individually with zero flickering.

  • Expandable Daisy-Chain Support: Features both input and output headers, allowing multiple modules to be linked together to create ultra-long scrolling displays.

  • Stable Brightness Management: Includes a digital and analog brightness control via software, ensuring consistent luminosity across the entire matrix.

All Technical Details

  • Pinout: VCC (5V), GND, DIN (Data In), CS (Chip Select), CLK (Clock).

  • Cascading: Output pins (VCC, GND, DOUT, CS, CLK) located on the opposite end for serial connection.

  • Brightness: 16-level software-adjustable brightness control.

  • Efficiency: Low-power shutdown mode (150µA) for battery-operated standby.

  • Mounting: Includes 4 integrated 3mm screw holes for secure enclosure mounting.

Prototyping & Engineering Tips (Robogears Exclusive)

  • Power Supply Tip: While the MAX7219 can run off your Arduino's 5V pin, a single 4-in-1 module can draw up to 200mA–300mA at full brightness. If you are daisy-chaining multiple modules at your Pimpri workshop, use an external 5V power supply to avoid overstressing the microcontroller's regulator.

  • Library Recommendation: For Arduino users, the MD_Parola and MD_MAX72xx libraries are highly optimized for this 4-in-1 layout and support advanced scrolling effects with minimal code.

  • Orientation Logic: If your text appears upside down or reversed, most libraries allow you to change the "Hardware Type" (e.g., FC16_HW or ICSTATION_HW) in the setup code to match this specific PCB routing.

  • Wiring Protocol: Ensure the GND of your external power supply is connected to the GND of your microcontroller (Common Ground) to prevent signal noise and data corruption.

Package Includes

  • 1 x MAX7219 LED Dot Matrix 4-in-1 Display Module

  • 1 x 5-Pin Female-to-Female Jumper Wire (20cm)

Image Disclaimer

Product images are shown for illustrative purposes only. The LED color (standard Red) or the PCB silkscreen orientation may vary slightly between manufacturing batches, though all technical specifications and the 4-in-1 MAX7219 configuration remain as described.

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