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 #define P_DASH 3 // Connects to the dash lever of the paddle #define P_AUDIO 12 // Audio output #define P_CW 13 // Output of the keyer, connect to your radio #define P_SPEED A0 // Attached to center pin of potmeter, allows you // to set the keying speed.

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