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LED Matrix

Documentation de la Matrice de LED NeoPixel 5x5​

1. Introduction​

The NeoPixel 5x5 LED Array is a versatile, colorful display that can be controlled by a single data pin. Each LED in the array is an RGB LED, allowing for millions of color combinations. This matrix is ​​commonly used in creative lighting projects, displays and interactive installations.

2. Technical Characteristics​

  • Number of LEDs: 25 (5x5 matrix)
  • Operating Voltage: 3.3V DC
  • Data Protocol: Single-wire communication (WS2812 or WS2812B)
  • Current Consumption: Up to 60mA per LED at maximum brightness (all LEDs in white)
  • Dimensions: Approximately 50mm x 50mm (varies depending on manufacturer)
  • Order of Pixel Colors: GRB (Green-Red-Blue) or RGB depending on the model

3. Pin Configuration​

NeoPixel Matrix Pinout

4. Using the NeoPixel Matrix with CircuitPython​

Library Installation:

  1. The library installs automatically if you use a code block that uses the Led Matrix backpack in Elioblocs.

  2. Otherwise, install the matrix.py library on our GitHub repository.

Code Example:

import board
from matrix import MatrixLED
import time

matrix = MatrixLED(board.IO2)

while True:
    # Scroll the text "SUPER" in green
    matrix.scroll_matrix_text('SUPER', (153, 153, 0))