No continuous ON

[zouje]

It would be good to have the option to turn the blinker continuously ON. The intuitive way could be to set the Low Delay to 0.
When setting the Low Delay to 0 with the current version, the output still blinks for one iteration every period.

[majenkotech]

I've added an optional "idle" state to the stop() function. You can now specify blinker.stop(HIGH) for it to stop blinking and idle with the output set HIGH instead of (the default) LOW. Use blinker.start() to start blinking again with the same timing as you had before you stopped.