If you have a PC, an iPhone and an Arduino microcontroller attached to a robot, what would you like to do with these three pieces? What if I give you a hint? The PC or smartphone, or both, can be very useful to control wirelessly the Arduino robot. And this is the case of an instructable user from Tokyo, Japan that build a robot fully controllable via radio and using a simple web interface.

The robot is a two-wheeled car based on the Tamiya Kits and XBee. The system architecture is simple and uses the Node.js cross-platform for networking applications as the main application to controls the XBee connection, while to control the Web screen are used the Socket.IO from a MacBookPro. Head over to mikilabo for the full tutorial here.