MorseStatus

The MorseStatus library is a handy class that blinks an LED for you. It blinks repeatedly in a pattern defined by the Morse Code for a character that you specify. That character, and the associated Morse pattern, can indicate a status in your program.

Usage

#include <MorseStatus.h>

MorseStatus myLED(13);

void setup() {
    myLED.begin();
    myLED.setStatus('L');
}

void loop() {
    myLED.run();
}

Constructor

The constructor takes either one or two parameters. The first, and required, parameter is the pin number to blink. The second optional parameter indicates if the LED is active LOW or active HIGH (most are active HIGH). A true indicates the LED is active LOW:

// Active HIGH (normal) LED on pin 13:
MorseStatus myLED(13);
// or
MorseStatus myLED(13, false);

// Active LOW (inverted) LED on pin 4:
MorseStatus myLED(4, true);

Status Codes

The library understands the status codes 0-9 and A-Z as ASCII characters. 0-9 can also be used as integers.

myLED.setStatus(3);
// ... is the same as:
myLED.setStatus('3');

It treats upper- and lower-case characters the same.

Running

The library is completely asynchronous and non-blocking. To do the actual blinking the .run() method has to be called at frequent intervals within your main loop. Any blocking routines within your loop will interfere with the blinking and could upset the rhythm.

It is safe to call the .run() method from a timer interrupt for fully asynchronous operation.