led print string

/****************************************************************************
* Copyright © 2015 Alessandro Spallina
* email: alessandrospallina1@gmail.com
* website: aleksnote.altervista.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
****************************************************************************/ 

#define LED0 13
#define LED1 11
#define LED2 4
#define LED3 3
#define LED4 2
#define LED5 12
#define LED6 8


int incomingByte=0;
int init_controller=-1;

void on_matrix()
{
   digitalWrite(LED0, HIGH);
   digitalWrite(LED1, HIGH); 
   digitalWrite(LED2, HIGH);
   digitalWrite(LED3, HIGH);
   digitalWrite(LED4, HIGH);
   digitalWrite(LED5, HIGH);
   digitalWrite(LED6, HIGH);
  
  
}

void off_matrix()
{
   digitalWrite(LED0, LOW);
   digitalWrite(LED1, LOW); 
   digitalWrite(LED2, LOW);
   digitalWrite(LED3, LOW);
   digitalWrite(LED4, LOW);
   digitalWrite(LED5, LOW);
   digitalWrite(LED6, LOW);
    
}

//lampeggia n volte con un x delay
void lampeggia(int ritardo, int volte)
{
int i;

  for(i=0; i<volte; i++)
  {
    on_matrix();
    delay(ritardo);
    off_matrix();
    delay(ritardo);
  }
}

void letterPrint(int letter, int ritardo)
{
  
  delay(150);
  switch(letter)
  {
    
     // /
     case 47:
     digitalWrite(LED2, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
    
    
     //A-a
     case 65:
     case 97:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break; 
    
     //B-b
     case 66:
     case 98:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //C-c
     case 67:
     case 99:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     break;
     
     //D-d
     case 68:
     case 100:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);     
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     break;
     
     //E-e
     case 69:
     case 101:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //F-f
     case 70:
     case 102:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //G-g
     case 71:
     case 103:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //H-h
     case 72:
     case 104:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //I-i
     case 73:
     case 105:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //J-j
     case 74:
     case 106:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     break;
      
     //K-k     
     case 75:
     case 107:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //L-l
     case 76:
     case 108:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     break;
     
     //M-m
     case 77:
     case 109:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     break;
     
     //N-n
     case 78:
     case 110:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //O-o
     case 79:
     case 111:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     break;
     
     //P-p
     case 80:
     case 112:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //Q-q
     case 81:
     case 113:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //R-r
     case 82:
     case 114:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //S-s
     case 83:
     case 115:
     digitalWrite(LED0, HIGH);
     digitalWrite(LED1, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     //T-t
     case 84:
     case 116:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     
     //U-u
     case 85:
     case 117:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED3, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     break;
     
     //X-x
     case 88:
     case 120:
     digitalWrite(LED1, HIGH);
     digitalWrite(LED2, HIGH);
     digitalWrite(LED4, HIGH);
     digitalWrite(LED5, HIGH);
     digitalWrite(LED6, HIGH);
     break;
     
     
     
     
  }
  
  delay(ritardo);
  off_matrix();

}


//*****************************************************************************

void setup() 
{
  pinMode(LED0, OUTPUT);
  pinMode(LED1, OUTPUT);  
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(LED6, OUTPUT);
  
  
  Serial.begin(9600);
}

void loop() 
{

  //boot
  if(init_controller==-1)
  {
    lampeggia(350, 3);
    init_controller=0; 
  }
  
  if(Serial.available()>0)
  {
    incomingByte=Serial.read();
    
    Serial.print("I receveid: ");
    Serial.println(incomingByte, DEC); 
    
    letterPrint(incomingByte, 1000);
    
  }
  
}