// Program to demonstrate the MD_Parola library
//
// Simplest program that does something useful - Hello World!
//
// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
//

#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 4

#define CLK_PIN   13
#define DATA_PIN  11
#define CS_PIN    10

// Hardware SPI connection
MD_MAX72XX grobj = MD_MAX72XX(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary output pins
// MD_MAX72XX P = MD_MAX72XX(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
void setup(void)
{
  grobj.begin();
  Serial.begin(9600);
  String str = "régen";
  char charr[10];
  str.toCharArray(charr,7);
  Serial.println((uint16_t)'é', HEX);
  Serial.println('é', HEX);
  Serial.println(charr);
}

void loop(void)
{
  //Serial.println();
  uint8_t data = random(256);
  grobj.setBuffer(10, 1, &data);
  grobj.setChar(31, random(256));
  if (Serial.available()) {
     byte c = Serial.read();
     if (c == 0xC3) {
      c = Serial.read() + 64;
      grobj.setChar(21, c);
    }
    Serial.println(c, HEX);
  }
  delay(1000);
}