gpio-buttons - activate debouncing

[albatrosos]

Hello,

using the gpio-buttons plugin without a hardware debouncing of the input pins, at least in my case, often leads to bouncing effects (e.g. pressing play/stop one time leads to a stop and direct restart). While this is no problem for a shutdown button or maybe even a volume +/- button, it can be quite annoying on a play/stop button.

As far as I found out, the used onoff library for the Gpio reading already provides a software debounce, which works flawlessly for me.
Wouldn't it be meaningful to generally activate this debouncing in gpio-buttons or maybe make it configurable?

I just had to change this line of code in index.js of gpio-buttons:
currently:
var j = new Gpio(pin,'in','both');
modified:
var j = new Gpio(pin,'in','both', {debounceTimeout: 50});

I chose 50ms as debounce value, since I don't think a quicker reaction is necessary, but probably this value could also be reduced to 10-20ms, if desired.

[albatrosos]

Since I am new to GitHub, please tell me, if this location is wrong for this request or if an issue is the wrong way to ask for this modification. :)

[Korniman-the-Rooky]

@Darmur

Since I am new to GitHub, please tell me, if this location is wrong for this request or if an issue is the wrong way to ask for this modification. :)

Hi I have faced the same issue, sometimes the play pause button works well sometimes it bounces. - not often but it happen, I like your idea to activate the debounce, then I would save a piece of hardware in my player