grp.listen init, value

[admin]

Add a third argument (true) to grp.listen to catch all messages. You also need to clear the timeout on each value update otherwise your function won't work correctly.

Code:

$(function() {
  var timeout;
  grp.listen("33/1/255", function(object,state) {
    if (state == 'value') {
      console.log('Show message');
      clearTimeout(timeout);
      timeout = setTimeout(function(){
       console.log('Hide Messase');
      }, 4500);
    }
  }, true);
});