title: What does PuTTY send when I press Enter key?
body: <p>I am trying desperately to get a Bluetooth dongle working with my Arduino but I can't send it a command that it needs.  I can use it when I plug it into my computer via a USB to UART chip and send the command (<code>C</code>) from PuTTY and then press <code>Enter</code>.</p>
  
  <p>The Bluetooth dongle's <a href="http://www.sparkfun.com/datasheets/Wireless/Bluetooth/rn-bluetooth-um.pdf" rel="noreferrer">command sheet</a> says that the command I am trying to send it <code>C&lt;cr&gt;</code> but I can't figure out how to send the proper carriage return character from the Arduino code.  I have tried using the <code>Serial.println()</code> function as well as adding the <code>\r</code> character to my current <code>Serial.write("C\r")</code> but neither of those are working.</p>
  
  <p>How can I achieve this?</p>