//Made by OZ1JHM 2021 / 05 / 02
//Edited by ivndbt.com 2025 / 05 / 21
// in library manager search for "keyboard" and install library
// If you do want to use paddles dont connetc MODE_PIN to GND.
// If you want to use your own keyer connect MODE_PIN to GND
// Remember to set the settings on https://hamradio.solutions/vband/
// Enjoy your internet Morse

#include <Keyboard.h>

// ********************* only changes here  ******************
# define DIH_PIN 2
# define DAH_PIN 3
# define MODE_PIN 4
//# define RED_PIN 15
//# define GREEN_PIN 14
// ********************* do not change from here  ******************

void setup() {
  pinMode(DIH_PIN, INPUT_PULLUP);
  pinMode(DAH_PIN, INPUT_PULLUP);
  pinMode(MODE_PIN, INPUT_PULLUP);
//  pinMode(RED_PIN, OUTPUT);
//  pinMode(GREEN_PIN, OUTPUT);
//  digitalWrite(RED_PIN, LOW);
//  digitalWrite(GREEN_PIN, LOW);
  Keyboard.begin();
}

void loop() {

  if (digitalRead(MODE_PIN) == LOW){
    Mode_keyer();
  } 
  else{
     Mode_paddle();   
  }
}

void Mode_paddle(){

  while (digitalRead(DIH_PIN) == HIGH && digitalRead(DAH_PIN) == HIGH){
    Keyboard.releaseAll();
//    digitalWrite(RED_PIN, LOW);
//    digitalWrite(GREEN_PIN, LOW);
  }
  if ( digitalRead(DIH_PIN) == LOW){
    Keyboard.press(KEY_LEFT_CTRL);
//    digitalWrite(RED_PIN, HIGH);
  }
  else{
    Keyboard.release(KEY_LEFT_CTRL);
//    digitalWrite(RED_PIN, LOW); 
  }
  
  if ( digitalRead(DAH_PIN) == LOW){
    Keyboard.press(KEY_RIGHT_CTRL);
//    digitalWrite(GREEN_PIN, HIGH);
  }
  else{
    Keyboard.release(KEY_RIGHT_CTRL);
//    digitalWrite(GREEN_PIN, LOW); 
  }
  delay(5);
}

void Mode_keyer(){

  while (digitalRead(DIH_PIN) == HIGH){
    Keyboard.releaseAll();
//    digitalWrite(RED_PIN, LOW);
  }
  if ( digitalRead(DIH_PIN) == LOW){
    Keyboard.press(KEY_LEFT_CTRL);
//    digitalWrite(RED_PIN, HIGH);
  }
  else{
    Keyboard.release(KEY_LEFT_CTRL);
//    digitalWrite(RED_PIN, LOW); 
  }
}