title: Can not write x00 in hex c++
body: <p>I need to write to serial port 0x00 for the device address but when i try, it is written nothing.</p>
  
  <pre><code>const char bufferTX[11] = "\xA5\x00\x05\x10\x00\x00\xD0\x01\x00\x00";
  </code></pre>
  
  <p>This is my buffer which i wanna sent to serial port. And below function is sending datas to serial port</p>
  
  <pre><code>for(int k = 0; k&lt;sizeof(bufferTX); k++)
  {
    RS232_cputs(cport_nr, &amp;bufferTX[k]);  
    printf("sent: %c\n", bufferTX[k]);
  }
  </code></pre>