PubNub are fast becoming a company to keep an eye on in the Pi world. They’ve produced a few articles so far that use their online service and it’s time for another one. Kevin Gleason has written a tutorial for wiring up an RGB LED to the Pi and then how to create an Android app to control it remotely, via the PubNub service. It’s a nice proof-of-concept piece, and will also introduce you to the world of Android programming via the clear code he’s written. Read more here.