MAX7219 DOT MATRIX 4 IN 1 DISPLAY

🔹 MAX7219 Dot Matrix 4-in-1 Display – 8×32 LED Module with 5-Pin Cable

This 4-in-1 dot matrix display module integrates four cascaded 8×8 LED matrices driven by a MAX7219 IC, creating a large 8×32 pixel screen for scrolling text and animations. It uses only 3-4 I/O pins, making it perfect for use with Arduino, ESP8266, and Raspberry Pi .

✅ Specifications:

Driver IC: MAX7219 (common-cathode)

Resolution: 8 x 32 pixels (four 8×8 cascaded matrices)

LED Color: Red

Operating Voltage: 5V DC

Operating Current: 320mA max

Interface: SPI (DIN, CS, CLK) + VCC, GND

PCB Dimensions: 128 x 32 mm

📦 Features:
✔️ Requires only 3 communication pins (data, clock, chip select)
✔️ Built-in 8×8 static RAM for storing each digit
✔️ Supports cascading multiple modules for larger displays
✔️ Includes on-chip BCD code-B decoder, multiplex scan, and segment drivers
✔️ Features 150µA low-power shutdown mode and adjustable brightness
✔️ Pre-cascaded module with input and output interfaces

📦 Applications:
✔️ Scrolling text displays and message boards
✔️ Digital clocks, thermometers, and countdown timers
✔️ Animated graphic and icon display for IoT dashboards
✔️ DIY home automation status panels and indicators
✔️ Educational projects for driving LED matrices
✔️ Wearable electronics and small-scale signage