title: how can I get a string from the raspberry UART?
body: <p>I'm programming the Raspberry Pi to get data from an Android application by bluetooth with a HC-05 module. </p>
  
  <p>I am using the wiringSerial library to accomplish it, because I just need to get some bytes of information (colours, timers, etc)</p>
  
  <p>The problem is that with the serialGetchar function I just get the ASCII codes of the string I send from the Android app and not the whole string. How can I get the string as it was sent?</p>
  
  <p>I have this code for now:</p>
  
  <pre><code>int main () {
    connection = serialOpen(/dev/ttyAMA0, 9600);
    while (serialDataAvail(connection) &gt; -1) {
      std::cout &lt;&lt; (char) serialGetchar(connection);
    }
  }
  </code></pre>
  
  <hr>
  
  <p>Edit: the whole code is:</p>
  
  <pre><code>#include &lt;wiringSerial.h&gt;
  
  #include &lt;unistd.h&gt;
  
  #include &lt;wiringPi.h&gt;
  #include &lt;iostream&gt;
  
  
  int main()
  {
      char opcion;
      int conexion;
  
      int dato;
      char datos[1024];
      int i = 0;
  
      std::cout &lt;&lt; "Select option\n";
  
      std::cout &lt;&lt; "a --&gt; bluetooth write test\n";
      std::cout &lt;&lt; "b --&gt; bluetooth read test\n";
  
      opcion = getchar();
  
      conexion = serialOpen("/dev/ttyAMA0", 9600);
  
          while (true){
  
              if (opcion == 'a') {
                                  serialPrintf(conexion, "Hola\n");
  
                  } else if (opcion == 'b') {
  
  
                                  while (serialDataAvail(conexion) &gt; -1){
  
                                             dato = serialGetchar(conexion);
                                             printf("%d\n", dato);
  
                                                  datos[i] = dato;
                                                  i++;
  
                                                  if (dato == 65){
                                                          printf("%d\n",datos);
  
                                           }
  
                                  }
  
  
  
  
                                  }
  
  
          }
  }
  </code></pre>