Automated Recent Posts Slider is a widget for blogger which will show the recent posts of your desired blog with nice and awesome interface. This widget updates automatically and you do not have to edit the widget and add images, titles and description again and again. You just have to add the URL of the blog and your setup will be complete. A live demo of this widget can be seen below.
Adding code in your Blog Layout
In order to add this widget's code go to Blog Title → Layout → Add Widget → HTML/JavaScript and paste the given code in the box opened.
<link rel="stylesheet" type="text/css" href="http://blogger-json-experiment.googlecode.com/svn/resources/blogger-feed-rotator-plugin/default-style.min.css"/>
<div id="slider-rotator" class="slider-rotator loading"></div>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="http://blogger-json-experiment.googlecode.com/svn/resources/blogger-feed-rotator-plugin/blogger-feed-rotator.min.js"></script>
<script type="text/javascript">
makeSlider({
url: "http://YOURURL.blogspot.com" // Add your blog URL
});
</script>
After adding the code change the URL in Bold http://YOURURL.blogspot.com with your own desired URL and save the widget. You are done now.
Source : http://www.allbloggertricks.com/2013/07/automated-recent-posts-slider-for.html