AngularJS 1.4

HTML

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.6/angular.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://cdn.rawgit.com/angular-ui/bootstrap-bower/0.13.4/ui-bootstrap-tpls.js"></script>
<div ng-app="SharingDataBetweenControllers" ng-scope>
    <div ng-controller="Controller5a">
    first controller:<input ng-model="text" ng-change='set()'/>
    </div>
    <div ng-controller="Controller5b">
    second controller: {{text}}
    </div>
</div>

JavaScript

var module = angular.module('SharingDataBetweenControllers', []);

module.controller('Controller5a',function($scope) {
  $scope.text='hello';
  $scope.$watch('text',function(newValue,oldValue){
  	//console.log(newValue);
    //this with send the message to $rootScope
  	$scope.$emit('share',$scope.text);
  })
});

module.controller('Controller5b', function($scope,$rootScope) {
	$rootScope.$on('share', function(event,response){
  	console.log(response);
  	$scope.text = response;
  })
});