File content as of revision 11:9e3dca611315:

#include "mbed.h"
#include "Adafruit_SSD1306.h"
Serial bluetooth(D1, D0); // RX TX 
I2C i2c(D4, D5); // SDA, SCL
DigitalOut vibMotor(D10);
Serial pc(USBTX, USBRX);

int main()
{
    Adafruit_SSD1306_I2c LCD(i2c);  
    LCD.display();
    char bt_received;
    pc.baud(115200);
    bluetooth.baud(38400);

    while(1) {
        while (bluetooth.readable()){
           LCD.begin();
           LCD.display();  
           bt_received = bluetooth.getc();
           pc.printf("Dato Ricevuto: %c\r\n",bt_received);
            if (bt_received=='D'){
                    pc.printf("If \r\n");
                    LCD.setTextCursor(0,0);
                    LCD.printf("Bussano alla porta    \n");
                    vibMotor = 1;
                    LCD.display();
                  }
            else if (bt_received=='P'){
                    pc.printf("else if \r\n");
                    LCD.setTextCursor(0,0);
                    LCD.printf("Bussano al portoncino\n");
                    vibMotor = 1;
                    LCD.display();
                  }
            else {
                    pc.printf("Cancella tutto \r\n");
                    LCD.setTextCursor(0,0);
                    LCD.printf("                        \n");
                    vibMotor = 0;
                    LCD.display();
                  }
                 wait_ms(800); 

           }


    }
}