Semi Automatic Paddle Practice Oscillator

This circuit is a Semi Automatic Paddle Practice Oscillator, I built to practice Morse code. It' similar to the paddle key for the ICOM IC-718. Here is the video

This is different than a standard practice straight key, like my home made paddle? 

It is Arduino compatible, I like to use a 6 pin header and a FTDI cable. It a lot easier to breadboard circuits.

Schematic:

PCB Board Design

Coming Soon!

Here is the Code ******************************************

int outPin = 9;

unsigned int frequency = 400;

unsigned long dotDuration = 60;

unsigned long dashDuration = dotDuration * 3;

int dotPin = 7;

int dashPin = 8;

void setup() {

pinMode(dotPin, INPUT);

pinMode(dashPin, INPUT);

}

void loop() {

int dotVal=HIGH;

int dashVal=HIGH;

dotVal = digitalRead(dotPin);

dashVal = digitalRead(dashPin);

if (dotVal==LOW)

{

tone(outPin, frequency, dotDuration);

delay (200);

}

if (dashVal==LOW)

{

tone(outPin, frequency, dashDuration);

delay (400);

}

}