How to use a single button with something similar to morse code for options?

Projects General Guidance
1

I want to be able to select different options in my loop. I could use i.e. a few digital or analogue inputs and use if, else, switch, etc.

But my idea is to do this with just one button and commands like morse code.
If I press Long, short, short A happens
If I press Long, Long, Long B happens
And some more options.

Currently I use no wait and I run a timer every 10 ms. I could change this to another ms value or use a different timer. My loop time does not have to be precise. +/- 10% is no problem.

#include <MsTimer2.h>

void setup() {
  MsTimer2::set(10, timedLoop);
  MsTimer2::start();
}

void timedLoop(){
  //work
}

I guess I could monitor for how long a button is pressed. And then look for a pattern like "long, short, short" and other options.
But before I try to do that from scratch I thought I ask the community if there is some public code for this or maybe a library.
There is no point to "invent" this again if others did it already.

Any ideas?
Thanks

2

Why not start with a CW trainer like this and then decide what to do with the character that was typed out.

3

This Thread has a neat way of dealing with different button presses.

If you make the thing too complicated it will be unusable.

...R

4

Thanks for the two options. That looks already very interesting and will save me a lot of work.