ALLNET 4duino Display Module LED MAX7219 (ALL-B-33)

The ALLNET 4duino Display Module LED MAX7219 is a compact and versatile LED dot matrix display module designed for microcontroller projects. Featuring a MAX7219 controller chip, it drives a single 8x8 red LED matrix via SPI interface, making it ideal for Arduino, Raspberry Pi, ESP32/ESP8266, and other platforms. The module supports cascading for larger displays and offers software-adjustable brightness with 16 levels.

Advantages

Easy to integrate with any SPI-capable microcontroller; cascadable design allows creating larger matrix arrays; low power consumption with maximum current of ~320mA; includes 5-pin jumper wire for quick connection.

Suitable for

• Digital clocks and timers
• Scrolling text displays
• Sensor data visualization
• Simple animations and indicators
• Educational projects and prototyping

Key specifications

• Controller Chip: MAX7219
• Display Type: LED Dot Matrix
• Matrix Configuration: 1x 8x8
• LED Color: Red
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 4.5V - 5.5V DC
• Max Current Consumption: ~320mA (all LEDs on)
• Cascadable: Yes
• Number of Control Pins: 5 (VCC, GND, DIN, CLK, CS)
• Brightness Control: Software adjustable (16 levels)
• Mounting Holes: Yes (4 holes)
• Included Cables: 5-pin Jumper Wire

Recommendations

For best performance, use a stable 5V power supply. When cascading multiple modules, ensure proper power distribution to avoid voltage drops. Compatible with Arduino libraries such as LedControl and MD_Parola.