// Program to demonstrate the MD_Parola library
//
// Simplest program that does something useful - Hello World!
// Uses the Arduino Print Class extension
//
// NOTE: MD_MAX72xx library must be installed and configured for the LED
// matrix type being used. Refer documentation included in the MD_MAX72xx 
// library or see this link: 
// https://majicdesigns.github.io/MD_MAX72XX/page_hardware.html
//

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

#define WAIT_TIME 1500

// 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	MAX_DEVICES	4
#define	CLK_PIN		13
#define	DATA_PIN	11
#define	CS_PIN		10

// Hardware SPI connection
MD_Parola P = MD_Parola(CS_PIN, MAX_DEVICES);
// Arbitrary output pins
// MD_Parola P = MD_Parola(DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

void setup(void)
{
  P.begin();
}

void loop(void)
{
  P.print("Hello");
  delay(WAIT_TIME);
  P.print(1234, DEC);
  delay(WAIT_TIME);
  P.print(1234, HEX);
  delay(WAIT_TIME);
  P.print(12.5);      // float not supported by Arduino Print class
  delay(WAIT_TIME);
  P.print(9876l);
  delay(WAIT_TIME);
  P.println("end");   // only get the /r/n characters - avoid using println
  delay(WAIT_TIME);
  P.write('A');
  delay(WAIT_TIME);
  P.write('B');
  delay(WAIT_TIME);
  P.write('C');
  delay(WAIT_TIME);
}