morse corder with Arduino

Real Time Translator from keyboard to morse code with Arduino

morse corder with Arduino is
morse code hearing trainer 2.
The past model(morse code hearing trainer) was not able to output a morse typing the keyboard in real time.
I can output the signal typing the keyboard approximately in real time by a speaker on Arduino to overcome the problem, by serial communication between matlab and Arduino.
learning
・ Technique of gui
・ Technique of the serial communication
・ Technique of Arduino
・ Idea of the morse coding
Please can help these skills.
In addition,
It is able to be output a morse cord with a keyboard in substitution for a Straight key if connected to the amateur radio transmitter.

updated 19.3.2014 ver.1
%function addition(to change morse speed and tone)

updated 24.3.2014 ver.1.01
%Bug Fix:Tone Pitch Change was impossible.
%Arduino sketch:morse_arduino.ino L117
%From "tone(8,1000" To "tone(8,thz"