matrix_test.ino

#include <FastLED.h>

// Define matrix dimensions
#define MATRIX_WIDTH 11
#define MATRIX_HEIGHT 10
#define NUM_LEDS (MATRIX_WIDTH * MATRIX_HEIGHT)

// Data pin connected to the LED strip
#define DATA_PIN 11

CRGB leds[NUM_LEDS];  // Array to hold LED data

void setup() {
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
}

void loop() {
  // Loop through each pixel on the matrix
  for (int y = 0; y < MATRIX_HEIGHT; y++) {
    for (int x = 0; x < MATRIX_WIDTH; x++) {
      // Calculate the LED index based on coordinates
      int ledIndex = XY(x, y);

      // Toggle LED color between red and black
      if (millis() % 1000 < 500) {
        leds[ledIndex] = CRGB::Red;
      } else {
        leds[ledIndex] = CRGB::Black;
      }
    }
  }
  FastLED.show();  // Update the LEDs
  delay(100);  // Small delay for visual effect
}

// Helper function to calculate LED index from x, y coordinates
uint16_t XY(uint8_t x, uint8_t y) {
  return (y * MATRIX_WIDTH) + x;
}