Name: MAX7219 LED Array Module 8x8 Arduino Compatible
SKU: 440269
Price: 3.72 EUR
Availability: InStock

Description

MAX7219 LED Array 8×8 Arduino Compatible Module

The module includes an 8×8 LED array that allows the display of every alphanumeric character (7×5 pixels).
The LEDs are organized in 8 rows of 8 pixels with a common cathode configuration as required by the MAXIM 7219 controller. The controller generates the current to light up each row sequentially. The controller is organized in 8 digits for 8 segments (in memory of 7-segment displays)
The current, and thus the brightness of the LEDs, can be varied by acting on an external resistor or through the use of an internal programming register.
Power supply voltage of 5V.
SPI interface.

Technical specifications:
– LED matrix display
– MAX7219 controller
– SPI interface
– The module is expandable
– Power supply voltage 5V
– Dimensions 50x32x15 mm

Connection methods:
1. 4-pin connector
a. Pin-1 Power Supply Voltage
b. Pin-2 Ground
c. Pin-3 Serial Data
d. Pin-4 Enable Signal
e. Pin-5 Clock Signal

We have datasheets available for all components, if not present in the product download sheet, send us a message from the contact us module and we will publish it as soon as possible on our website.

Tutorial: How to Use MAX7219 LED Array 8×8 Module

The MAX7219 module is an electronic component that allows controlling an 8×8 LED matrix with Arduino. Ideal for beginners, it enables creating luminous displays without having to manage individual LEDs.

What you need

Arduino Compatible
USB A-MicroB Cable
Arduino IDE Software Installed

Steps

Connect the VCC and GND pins of the MAX7219 module to the corresponding power supply of the Arduino.
Connect the DIN pin of the module to one of the digital pins of Arduino (for example, D2).
Connect the CS pin of the module to another digital pin on the Arduino (e.g., D3).
Connect the CLK pin of the module to a third digital pin on the Arduino (for example, D4).
Open the Arduino IDE and install the ‘LedControl’ library.
Include the LedControl library in the code.
Create a new instance of the LedControl class by passing the DIN, CS, and CLK pins as parameters.
Use methods of the object to turn individual LEDs on or off in the matrix.

Example code

LedControl lc = LedControl(2, 3, 4, 0); //inizializza il modulo con i pin DIN, CS e CLK
lc.setIntensity(0, 15); //imposta l'intensità luminosa
lc.clearDisplay(0); //svuota la matrice di LED

Mini project

Create a display that shows ‘HELLO’ in uppercase letters using the LED matrix. It takes about 30 minutes.

Common mistakes

Do not verify the correct power supply of the MAX7219 module
Use an incorrect number of pins for the connection with Arduino
Omit installing the ‘LedControl’ library in Arduino IDE

Recommended accessories

USB A-MicroB cable
5V power adapter
Current limiting resistors for LEDs
3D printed case for the MAX7219 module

Frequently asked questions

What is the power supply voltage of the module?
Check the datasheet.

How many LEDs can a single MAX7219 module control?
8×8 = 64 LEDs

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