led_blinker.ino

String my_word = "abcdefghijklmnopqrstuvwxyz";
int inner_delay = 50; // The delay between individual characters
int outer_delay = 3000;// The delay between entire words

void setup(){
  // Loop through the pins we'll be using..
  for(int i=5; i<13; i++){

    pinMode(i, OUTPUT);    // set them to be output pins
    digitalWrite(i, LOW);  // set them to off
   
  }
  
}

void loop(){

    // Loop through the word specified, taking one character at a time     
    for(int character = 0; character < my_word.length(); character++){   
          
        // Call the character's corresponding function
        switch (  my_word.charAt(character)  ){
            case 'a':
              a();
              break; 
            case 'b':
              b();
              break; 
            case 'c':
              c();
              break;
            case 'd':
              d();
              break;
            case 'e':
              e();
              break;
            case 'f':
              f();
              break; 
            case 'g':
              g();
              break; 
            case 'h':
              h();
              break; 
            case 'i':
              i();
              break;
            case 'j':
              j();
              break;  
            case 'k':
              k();
              break;
            case 'l':
              l();
              break;
            case 'm':
              m();
              break;   
            case 'n':
              n();
              break;
            case 'o':
              o();
              break;
            case 'p':
              p();
              break;
            case 'q':
              q();
              break;
            case 'r':
              r();
              break; 
            case 's':
              s();
              break;
            case 't':
              t();
              break;
            case 'u':
              u();
              break; 
            case 'v':
              v();
              break;
            case 'w':
              w();
              break;
            case 'x':
              x();
              break;
            case 'y':
              y();
              break;
            case 'z':
              z();
              break;
            case ' ':
              space();
              break;
            case '.':
              dot();
              break;
        
        }    
    }
    delay(outer_delay);
}

void lightUp(byte seq){

    for(int i=0;i<8;i++){
    
        if(bitRead(seq, i)){ 
          
            digitalWrite(i+5, HIGH);
        }
        else{
             
             digitalWrite(i+5, LOW); 
        }
    
    }
    delay(inner_delay);


}

// For each of the characters below, the rightmost bit represents the top of the LED display.  
// The zeroed byte at the end of each letter is important. It resets the LEDs to off for the
// next letter.
void a(){
 
    lightUp(B11111110);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B11111110);    
    lightUp(B00000000);    
}

void b(){
    lightUp(B11111111);
    lightUp(B10011001);
    lightUp(B10011001);
    lightUp(B10011001);
    lightUp(B01100110);    
    lightUp(B00000000);    
  
}

void c(){

    lightUp(B00111100);
    lightUp(B01111110);
    lightUp(B10000001);
    lightUp(B10000001);
    lightUp(B10000001);    
    lightUp(B00000000);
}

void d(){
 
    lightUp(B11111111);
    lightUp(B10000001);
    lightUp(B10000001);
    lightUp(B01000010);
    lightUp(B00111100);
    lightUp(B00000000);    
  
}

void e(){
 
    lightUp(B11111111);
    lightUp(B10001001);
    lightUp(B10001001);
    lightUp(B10001001);
    lightUp(B10000001);
    lightUp(B00000000);    
  
}

void f(){
 
    lightUp(B11111111);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00000001);
    lightUp(B00000000);    
}

void g(){

    lightUp(B01111110);
    lightUp(B10000001);
    lightUp(B10010001);
    lightUp(B10010001);
    lightUp(B01110000);
    lightUp(B00000000);    
}

void h(){

    lightUp(B11111111);
    lightUp(B00011000);
    lightUp(B00011000);
    lightUp(B00011000);
    lightUp(B11111111);
    lightUp(B00000000);

}

void i(){

    lightUp(B10000001);
    lightUp(B10000001);
    lightUp(B11111111);
    lightUp(B10000001);
    lightUp(B10000001);
    lightUp(B00000000);

}

void j(){

    lightUp(B11100001);
    lightUp(B10000001);
    lightUp(B11111111);
    lightUp(B00000001);
    lightUp(B00000001);
    lightUp(B00000000); 
  
}

void k(){

    lightUp(B11111111);
    lightUp(B00011000);
    lightUp(B00100100);
    lightUp(B01000010);
    lightUp(B10000001);
    lightUp(B00000000); 
  
}

void l(){
  
 
    lightUp(B11111111);
    lightUp(B10000000);
    lightUp(B10000000);
    lightUp(B10000000);
    lightUp(B10000000);
    lightUp(B00000000); 
}

void m(){
  
    lightUp(B11111111);
    lightUp(B00000010);
    lightUp(B00001100);
    lightUp(B00000010);
    lightUp(B11111111);
    lightUp(B00000000);
}

void n(){
    
    lightUp(B11111111);
    lightUp(B00000110);
    lightUp(B00011000);
    lightUp(B01100000);
    lightUp(B11111111);
    lightUp(B00000000);
}

void o(){
  
    lightUp(B01111110);
    lightUp(B10000001); 
    lightUp(B10000001);
    lightUp(B10000001);
    lightUp(B01111110);
    lightUp(B00000000);
}

void p(){
     
    lightUp(B11111110);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00001110);
    lightUp(B00000000);    
}

void q(){
  
    lightUp(B01111110);
    lightUp(B10000001); 
    lightUp(B10100001);
    lightUp(B11000001);
    lightUp(B01111110);
    lightUp(B00000000);
}

void r(){
     
    lightUp(B11111110);
    lightUp(B00010001);
    lightUp(B00010001);
    lightUp(B00110001);
    lightUp(B11001110);
    lightUp(B00000000);    
}



void s(){
    lightUp(B01001110);
    lightUp(B10011001);
    lightUp(B10011001);
    lightUp(B10011001);
    lightUp(B01110010);
    lightUp(B00000000);

}

void t(){
    
    lightUp(B00000001);
    lightUp(B00000001);
    lightUp(B11111111);
    lightUp(B00000001);
    lightUp(B00000001);
    lightUp(B00000000);
  
}

void u(){
  
    lightUp(B01111111);
    lightUp(B10000000); 
    lightUp(B10000000);
    lightUp(B10000000);
    lightUp(B01111111);
    lightUp(B00000000);
}

void v(){
  
    lightUp(B00011111);
    lightUp(B01100000); 
    lightUp(B10000000);
    lightUp(B01100000);
    lightUp(B00011111);
    lightUp(B00000000);
}

void w(){
  
    lightUp(B11111111);
    lightUp(B01000000); 
    lightUp(B00110000);
    lightUp(B01000000);
    lightUp(B11111111);
    lightUp(B00000000);
}


void x(){
  
    lightUp(B11000111);
    lightUp(B00101000); 
    lightUp(B00010000);
    lightUp(B00101000);
    lightUp(B11000111);
    lightUp(B00000000);
}

void y(){
  
    lightUp(B00000111);
    lightUp(B00001000); 
    lightUp(B11110000);
    lightUp(B00001000);
    lightUp(B00000111);
    lightUp(B00000000);
}

void z(){
  
   lightUp(B11000001);
   lightUp(B10110001);
   lightUp(B10011001);
   lightUp(B10001101);
   lightUp(B10000011); 
   lightUp(B00000000);
}

void space(){
  
   lightUp(B0000000);
   lightUp(B0000000);
   lightUp(B0000000);
   lightUp(B0000000);
   lightUp(B0000000);
   lightUp(B0000000);   
}

void dot(){
  
   lightUp(B1000000);
   lightUp(B0000000);   
}