File content as of revision 1:405e88f6e720:

#include "mbed.h"
#include "TextLCD.h"
 
// Host PC Communication channels
Serial pc(USBTX, USBRX); // tx, rx
 
// I2C Communication
I2C i2c_lcd(D14,D15); // SDA, SCL

  
TextLCD_I2C lcd(&i2c_lcd, 0x7F, TextLCD::LCD20x4);  // I2C bus, PCF8574 Slaveaddress, LCD Type

//DigitalIn mybutton(USER_BUTTON); // definindo o user button
DigitalIn bot_1(D4);
DigitalIn bot_2(D5);
DigitalIn bot_3(D6);
DigitalIn bot_4(D7);

int x=0;
 
int main() { 
// Luz
    lcd.setCursor(TextLCD::CurOff_BlkOn);
    lcd.setBacklight(TextLCD::LightOn);
 
//lcd.setAddress(5,2);
//lcd.printf("salve");
//wait_ms(2000);
//lcd.cls();
//lcd.setAddress(5,2);
//lcd.printf("...");
//wait_ms(2000); 
//lcd.cls();
//lcd.setAddress(5,2);
//lcd.printf("seu otario");
lcd.printf("salve");
int a;
a = 0;
//printf("nmero: %d \n", a);
//while (a < 10)
    //{lcd.setAddress(a,0);
    //lcd.printf("%d \n", a);
    //a=a+1;
    //wait_ms(1000);
    //}
    //return 0;
while (true)  { 
if (x ==0)
    {
     lcd.cls();
     lcd.setAddress(0,0);
     lcd.printf("Selecionar pontos (1)");
     lcd.setAddress(0,1);
     lcd.printf("Tertar programa (2)");
     lcd.setAddress(0,2);
     lcd.printf("Realizar programa (3)");
     if (bot_1 == 0 )
    {
     x=1;
    }
    if (bot_2 == 0 )
    {
     x=2;
    }
    if (bot_3 == 0 )
    {
     x=3;
    }
    }
if (x ==1)
    {
     lcd.cls();
     lcd.setAddress(0,0);
     lcd.printf("Gravar ponto 1 (1)");
     lcd.setAddress(0,1);
     lcd.printf("Cancelar (2)");
    }
if (x ==2)
    {
     lcd.cls();
     wait(0.5);
     lcd.setAddress(6,1);
     lcd.printf("TESTANDO");
     lcd.setAddress(7,2);
     lcd.printf("PONTOS");
     wait(1);
    }
if (x ==3)
    {
     lcd.cls();
     wait(0.5);
     lcd.setAddress(5,1);
     lcd.printf("REALIZANDO");
     lcd.setAddress(8,2);
     lcd.printf("COLAGEM");
     wait(1);
    }
      

    //if (x==1)
      //      {lcd.setAddress(1,1);
        //    lcd.cls();
          //  lcd.printf("estado %d \n", a);
      //      a=a+1;
        //    x=0;
          //  }
     //if (x==2|| b == 1)
       //     {lcd.setAddress(1,1);
         //   lcd.cls();
           // lcd.printf("troca de estado %d \n", a);
            //a=a+1;
            //b=2;

            //}