Google+ Hangouts provide a group video chat with the ability to add apps. [RobotGrrl] created a Node.js web app to control an Arduino that can be added to a Hangout.
In this simple example, [RobotGrrl] demonstrates how to toggle an LED from the Hangout. This includes a tutorial on setting up your EC2 instance, full source for the server and client apps, the processing sketch to control an Arduino, and the code to allow the app to be added to a Hangout.
This example shows the basics, but there’s a whole slew of things that could be controlled with this system. [RobotGrrl] even demonstrates some robots that are controlled from a Hangout interface.
Check out an overview video after the break.