// Use the MD_MAX72XX library to Print some text on the display
//
// Demonstrates the use of the library to print text.
//
// User can enter text on the serial monitor and this will display as a
// message on the display.

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

#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW//Note will usually be FC16_HW for Real hardware
#define MAX_DEVICES 4

#define CLK_PIN   13  // or SCK
#define DATA_PIN  11  // or MOSI
#define CS_PIN    10  // or SS

// SPI hardware interface
MD_MAX72XX disp = MD_MAX72XX(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary pins
//MD_MAX72XX mx = MD_MAX72XX(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

// Text parameters
#define CHAR_SPACING  1 // pixels between characters

// Global message buffers shared by Serial and Scrolling functions
#define BUF_SIZE  8
char message[BUF_SIZE] = "Hello!";
int temp, hum, pres; 
String tempString, humString, presString;

void printText(uint8_t modStart, uint8_t modEnd, char *pMsg)
// Print the text string to the LED matrix modules specified.
// Message area is padded with blank columns after printing.
{
  uint8_t   state = 0;
  uint8_t   curLen;
  uint16_t  showLen;
  uint8_t   cBuf[8];
  int16_t   col = ((modEnd + 1) * COL_SIZE) - 1;

  disp.control(modStart, modEnd, MD_MAX72XX::UPDATE, MD_MAX72XX::OFF);

  do     // finite state machine to print the characters in the space available
  {
    switch(state)
    {
      case 0: // Load the next character from the font table
        // if we reached end of message, reset the message pointer
        if (*pMsg == '\0')
        {
          showLen = col - (modEnd * COL_SIZE);  // padding characters
          state = 2;
          break;
        }

        // retrieve the next character form the font file
        showLen = disp.getChar(*pMsg++, sizeof(cBuf)/sizeof(cBuf[0]), cBuf);
        curLen = 0;
        state++;
        // !! deliberately fall through to next state to start displaying

      case 1: // display the next part of the character
        disp.setColumn(col--, cBuf[curLen++]);

        // done with font character, now display the space between chars
        if (curLen == showLen)
        {
          showLen = CHAR_SPACING;
          state = 2;
        }
        break;

      case 2: // initialize state for displaying empty columns
        curLen = 0;
        state++;
        // fall through

      case 3:	// display inter-character spacing or end of message padding (blank columns)
        disp.setColumn(col--, 0);
        curLen++;
        if (curLen == showLen)
          state = 0;
        break;

      default:
        col = -1;   // this definitely ends the do loop
    }
  } while (col >= (modStart * COL_SIZE));

  disp.control(modStart, modEnd, MD_MAX72XX::UPDATE, MD_MAX72XX::ON);
}

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

void loop()
{
  /*
  strcpy(message, " T 32c");
  printText(0, MAX_DEVICES-1, message);
  delay(3000);
  strcpy(message, " H 58%");
  printText(0, MAX_DEVICES-1, message);
  delay(3000);
  strcpy(message, "1005mb");
  printText(0, MAX_DEVICES-1, message);
  delay(3000);
*/
  printText(0, MAX_DEVICES-1," *");
  delay(100);
  printText(0, MAX_DEVICES-1,"  *");
  delay(100);
  printText(0, MAX_DEVICES-1,"   *");
  delay(100);
  printText(0, MAX_DEVICES-1,"    *");
  delay(100);
  printText(0, MAX_DEVICES-1,"     *");
  delay(100);
  printText(0, MAX_DEVICES-1,"      *");
  delay(100);
  printText(0, MAX_DEVICES-1,"");
  delay(350);
  printText(0, MAX_DEVICES-1,"  Temp");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //temp = bme.readTemperature();
    //temp = temp-4;
    temp = 22;
    tempString  = "   " + String(temp)+" c";
    printText(0, MAX_DEVICES-1,tempString.c_str());
    delay(1000);
  }
  printText(0, MAX_DEVICES-1,"");
  delay(350);
  printText(0, MAX_DEVICES-1,"  Humid");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //hum = bme.readHumidity();
    hum = 58;
    humString = "  " + String(hum)+" %";
    printText(0, MAX_DEVICES-1,humString.c_str());
    delay(1000);
  }
  printText(0, MAX_DEVICES-1,"");
  delay(350);
  printText(0, MAX_DEVICES-1," Air Pr");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //pres = bme.seaLevelForAltitude(364, bme.readPressure())/100;  //MaeOn, Thailand, altitude 364m abovesealevel
    pres = 995;
    presString = String(pres)+" H";
    printText(0, MAX_DEVICES-1,presString.c_str());
    delay(1000);
  }
    printText(0, MAX_DEVICES-1,"");
    delay(350);
}

 


/*
//#include <Wire.h>
#include <MD_MAX72xx.h>
//#include <MD_Parola.h>
#include <SPI.h>
//#include <Adafruit_BME280.h>
MD_MAX72XX disp = MD_MAX72XX(MD_MAX72XX::FC16_HW, 10, 4);
//Adafruit_BME280 bme;
int temp, hum, pres; String tempString, humString, presString;
void setup(){
  disp.begin(); //bme.begin(0x76, &Wire);
}
void loop(){
  disp.printText(" *");
  delay(45);
  disp.printText("  *");
  delay(45);
  disp.printText("   *");
  delay(45);
  disp.printText("    *");
  delay(45);
  disp.printText("     *");
  delay(45);
  disp.printText("      *");
  delay(45);
  disp.printText("");
  delay(350);
  disp.printText("  Temp");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //temp = bme.readTemperature();
    //temp = temp-4;
    temp = 22
    tempString  = "   " + String(temp)+" c";
    disp.printText(tempString);
    delay(1000);
  }
  disp.printText("");
  delay(350);
  disp.printText("  Humid");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //hum = bme.readHumidity();
    hum b = 58
    humString = "  " + String(hum)+" %";
    disp.printText(humString);
    delay(1000);
  }
  disp.printText("");
  delay(350);
  disp.printText(" Air Pr");
  delay(1000);
  for(int i=1; i<=7; i++)
  {
    //pres = bme.seaLevelForAltitude(364, bme.readPressure())/100;  //MaeOn, Thailand, altitude 364m abovesealevel
    pres = 995
    presString = String(pres)+" H";
    disp.printText(presString);
    delay(1000);
  }
    disp.printText("");
    delay(350);
}
*/