Installing MongoDB 2.6 and Setting up Root User Login

mongoI recently started using MongoDB and I was struggling setting up the equivalent of a root user and other users in traditional SQL databases. MongoDB comes with authentication turned off out of the box, so in order to use the password challenge authentication, we have to create the root user followed by enabling the authentication. In this tutorial, we will cover that as well as installing MongoDB on Ubuntu.

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Parrot ARDrone 2.0 Video Streaming through OpenCV in Linux

Parrot ARDrone 2.0

Recently, I got the Parrot ARDrone 2.0. Enjoying taking control of electronics and software, I wanted to write my own code that will stream the video from the quadcopter to my computer and give me the ability to process the individual video frames with OpenCV. There are lots of examples how to do this for ARDrone 1.x, but virtually nothing for ARDrone 2.0, which completely changed the way it’s streaming the video. After many hours of research and putting different pieces of code together, I got it to work on ARDrone 2.0. In this post, I will show you how to do it.

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