Tech Demo 2: Morse Code LED

For my second tech demo, I wanted to make a project using flashing LEDs to display morse code. After several failed attempts at using different codes and/or libraries to accomplish this, I found a morse code library that turned the complex task into some very simple code and with a few easy changes I could modify to work for four LEDs rather than one.


#include <ArduinoMorse.h>

ArduinoMorse morse1(5);
ArduinoMorse morse2(6);
ArduinoMorse morse3(7);
ArduinoMorse morse4(8);

const int LED1 (5);
const int LED2 (6);
const int LED3 (7);
const int LED4 (8);

void setup() {
delay(1000);
}

void loop() {
// Flash in morse code:
morse3.process("Do");
delay(50);

morse4.process("you");
delay(50);

morse3.process("bite");
delay(50);

morse4.process("your");
delay(50);

morse3.process("thumb");
delay(50);

morse4.process("at");
delay(50);

morse3.process("us");
delay(50);

morse4.process("sir");
delay(500);

morse1.process("I");
delay(50);

morse2.process("do");
delay(50);

morse1.process("bite");
delay(50);

morse2.process("my");
delay(50);

morse1.process("thumb");
delay(50);

morse2.process("sir");
delay(500);

pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
pinMode(LED4, OUTPUT);

digitalWrite(LED2, HIGH);
delay(1000);

digitalWrite(LED1, HIGH);
delay(1000);

digitalWrite(LED4, HIGH);
delay(1000);

digitalWrite(LED3, HIGH);
delay(1000);

exit (0);
}

Sources:

https://github.com/willvincent/ArduinoMorse

https://www.marginallyclever.com/2014/11/how-to-blink-morse-code-with-arduino/

https://makezine.com/projects/arduino-morse-code-flasher/

http://www.instructables.com/id/Morse-code-with-arduinoLED/

http://www.instructables.com/id/Arduino-Morse-Code/