09 Morse Code Variables

Morse Code Variables

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/*Use variables for Morse Code messages. This will make it much easier to update the speed of messages Rules of Morse Code: - Dots are 1 'unit' - Dashes are 3 'units' (3 times as long as a dot) - Spaces between symbols within the same letter are 1 'unit' of no signal - Spaces between letters are 3 'units' of no signal - Spaces between words are 7 'units' of no signal */ //all the variables used in this program are 'integers', shortened to int, which means they are whole numbers. int dot = 200; //milliseconds that a dot will last int dash = dot*3; //milliseconds that a dash will last int symbolSpace = dot; // space between symbols are the same duration as a dot int letterSpace = symbolSpace*3; //space between letters are 3 times the duration of symbol spaces int wordSpace = symbolSpace*7; //space between words are 7 times the duration of symbol spaces int LED = 8; void setup(){ pinMode(LED,OUTPUT); //Set the LED as an 'OUTPUT' } void loop(){ //S digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(letterSpace); //wait before the next symbol in a letter //O digitalWrite(LED,HIGH); //Turn on LED delay(dash); //wait one 'dash' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dash); //wait one 'dash' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dash); //wait one 'dash' with LED on digitalWrite(LED,LOW); //Turn off LED delay(letterSpace); //wait before the next letter in a word //S digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(symbolSpace); //wait before the next symbol in a letter digitalWrite(LED,HIGH); //Turn on LED delay(dot); //wait one 'dot' with LED on digitalWrite(LED,LOW); //Turn off LED delay(wordSpace); //wait before the next word } // (c) 2024 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

 

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Challenges

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Change the LED that your message is flashing on. Hint: This should be really easy now with your variables!

Make your message take twice as long by changing the dot variable.

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