Entire circuit can be powered by a 9-Volt Battery: https://batteryindustry.tech/wp-content/uploads/2020/03/9-volt-battery.jpg

WPM = Words per minute

Potentiometer to control the speed (WPM)

Morse Code Keyer in action:

This should connected to the KEY input of your radio. This will trigger the dit-dah and activates the PTT (push to transmit) of the radio.

thanks

Here you go man: https://www.pa3hcm.nl/wp-content/uploads/2014/12/pa3hcm_simple_iambic_keyer.txt

There doesn't seem to be a way to copy code

Arduino sketch code: #define P_DOT 2 // Connects to the dot lever of the paddle

int speed;

// Initializing the Arduino
void setup()
{
pinMode(P_DOT, INPUT);
pinMode(P_DASH, INPUT);
pinMode(P_AUDIO, OUTPUT);
pinMode(P_CW, OUTPUT);
digitalWrite(P_CW, LOW); // Start with key up
}

// Main routine
void loop()
{
speed = analogRead(P_SPEED)/2; // Read the keying speed from potmeter
if(!digitalRead(P_DOT)) // If the dot lever is presssed..
{
keyAndBeep(speed); // ... send a dot at the given speed
delay(speed); // and wait before sending next
}
if(!digitalRead(P_DASH)) // If the dash lever is pressed...
{
keyAndBeep(speed*3); // ... send a dash at the given speed
delay(speed); // and wait before sending next
}
}

// Key the transmitter and sound a beep
void keyAndBeep(int speed)
{
digitalWrite(P_CW, HIGH); // Key down
for (int i=0; i < (speed/2); i++) // Beep loop
{
digitalWrite(P_AUDIO, HIGH);
delay(1);
digitalWrite(P_AUDIO, LOW);
delay(1);
}
digitalWrite(P_CW, LOW); // Key up
}

Breadboard Prototype by PA3HCM: https://www.pa3hcm.nl/wp-content/uploads/2014/12/20141230_122158-1024x768.jpg

https://images-na.ssl-images-amazon.com/images/I/61VlMbTH4UL._SL1000_.jpg

Sample Iambic Paddle: https://static.dxengineering.com/global/images/prod/xlarge/nzn-zn-9z-5-8-im_qg_xl.jpg