#include <LiquidCrystal.h>
LiquidCrystal monitor(2,3,4,5,6,7);//(RS,E,DB4,DB5,DB6,DB7)
byte linha=0;
byte coluna=0;
void setup()
{
monitor.begin(20,4);//(colunas, linhas) do LCD
}
void loop()
{
monitor.setCursor(coluna,0);
monitor.print("*");
if(analogRead(A1)==0 and coluna<19)
{
coluna++;
delay(100);
monitor.clear();
}
if(analogRead(A1)==1023 and coluna>0)
{
coluna--;
delay(100);
monitor.clear();
}
}