#include <Arduino.h>

// Declared weak in Arduino.h to allow user redefinitions.
int atexit(void (* /*func*/ )()) { return 0; }

// Weak empty variant initialization function.
// May be redefined by variant files.
void initVariant() __attribute__((weak));
void initVariant() { }

void setupUSB() __attribute__((weak));
void setupUSB() { }

int main(void)
{
	init();

	initVariant();

#if defined(USBCON)
	USBDevice.attach();
#endif

	// setup();

  Serial.begin(9600);

  // Defina o array 3x3
  int data[3][3] = {
    {1, 2, 3},
    {4, 5, 6},
    {7, 8, 9}
  };

  // Converta o array para JSON e envie pela serial
  Serial.print("{\"data\":[");
  for (int i = 0; i < 3; i++) {
    Serial.print("[");
    for (int j = 0; j < 3; j++) {
      Serial.print(data[i][j]);
      if (j < 2) {
        Serial.print(",");
      }
    }
    Serial.print("]");
    if (i < 2) {
      Serial.print(",");
    }
  }
  Serial.println("]}");

	for (;;) {
		//loop();
		if (serialEventRun) serialEventRun();
	}

	return 0;
}