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#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
#include "FreeSansBold9pt7b.h"
#include <Adafruit_GFX.h>

// Define the panel dimensions and configuration
#define MATRIX_WIDTH 64
#define MATRIX_HEIGHT 32
#define MATRIX_CHAIN_LENGTH 1  // Number of panels chained horizontally

// Define the pin mapping for your specific setup
// These are default pins, adjust if your wiring differs
#define R1_PIN 19
#define G1_PIN 13
#define B1_PIN 18
#define R2_PIN 5
#define G2_PIN 12
#define B2_PIN 17
#define A_PIN 16
#define B_PIN 14
#define C_PIN 4
#define D_PIN 27
#define E_PIN -1  // Use -1 for 1/16 scan panels (like 64x32), or a valid pin for 1/32 scan (like 64x64)
#define LAT_PIN 21
#define OE_PIN 15
#define CLK_PIN 2

// Create the pin configuration structure
HUB75_I2S_CFG::i2s_pins _pins = {
  R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN,
  A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN
};

// Create the matrix configuration structure
HUB75_I2S_CFG mxconfig(
  MATRIX_WIDTH,
  MATRIX_HEIGHT,
  MATRIX_CHAIN_LENGTH,
  _pins);

// Declare the MatrixPanel_I2S_DMA object
MatrixPanel_I2S_DMA *dma_display = nullptr;

void setup() {
  Serial.begin(115200);
  Serial1.begin(9600, SERIAL_8N1, 35, 23);

  // Initialize the display
  dma_display = new MatrixPanel_I2S_DMA(mxconfig);
  dma_display->begin();

  // Set brightness (adjust as needed, 32 or lower is often good for a single 64x32 panel)
  dma_display->setPanelBrightness(32);

  // Clear the display
  dma_display->fillScreen(dma_display->color565(0, 0, 0));  // Black
}

void loop() {
  // Example: Display scrolling text

  while (Serial1.available()) {
    Serial.write(Serial1.read());
  }

  dma_display->fillScreen(dma_display->color565(0, 0, 0));        // Clear screen
  dma_display->setTextWrap(false);                                // No text wrapping
  dma_display->setFont(&FreeSansBold9pt7b);                       // Example font, requires Adafruit_GFX library with fonts
  dma_display->setTextColor(dma_display->color565(255, 255, 0));  // Yellow text

  for (int x = MATRIX_WIDTH; x > -150; x--) {  // Scroll text from right to left
    dma_display->fillScreen(dma_display->color565(0, 0, 0));
    dma_display->setCursor(x, 15);  // Adjust Y-position as needed
    dma_display->print("Hello, ESP32!");
    delay(30);  // Adjust scroll speed
  }

  delay(1000);  // Pause after scrolling
}