ArduinoLCD_PC

#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 6, 5, 3, 4);
long rand1;long rand2;long rand3;
char in;
char v=0;
int cont=0;
int cont2=0;

//int Caracters1[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
//int Caracters2[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};

void setup() {
 Serial.begin(9600);
 pinMode(13, INPUT);
 digitalWrite(13, 1);
lcd.begin(16, 2);
int Vlx1;
int Vlx2;

for(int i=-1;i<16;i++){
  delay(15);
 rand3 = random(0,16);
 lcd.setCursor(rand3, 0);
 rand1 = random(2);
 lcd.print(rand1);

 for(int ie=0; ie<16; ie++){
   delay(20);
   lcd.setCursor(ie, 1);
  rand2 = random(2);
 lcd.print(rand2);
} }
lcd.clear();
}
void loop() {
    delay(50);
         if(Serial.available()){
           in=Serial.read();

           delay(100);

         if(cont<=15){

         lcd.setCursor(cont, 0);
          lcd.println(in);
          Serial.print("Nun.:");
          Serial.print(cont);
          Serial.print("L.::");
          Serial.println(in);
          cont++;
        }else
         if(cont==16){


       lcd.setCursor(0, 1);
          lcd.println(in);
          Serial.print("Nun.:");
          Serial.print(cont++);
          Serial.print("L.::");
          Serial.println(in);
          cont2++;
        } else
        if(cont>=16){


       lcd.setCursor(cont2, 1);
          lcd.println(in);
          Serial.print("Nun.:");
          Serial.print(cont++);
          Serial.print("L.::");
          Serial.println(in);
          cont2++;
        }
       if(in=='*'){
               lcd.clear();
               cont=0;
               cont2=0;
            }
          }
    }


//bem10jfx.blogspot.com
https://youtu.be/AazP11JKRLc