It is no secret that you can build robots and all kinds of fun gadgets with Arduino. Thanks to the LightBlue Bean, you are going to have an easier time creating smarter Arduino electronics. It is a Bluetooth Arduino microcontroller that can be programmed wirelessly and run on a coin cell battery.
The LightBlue Bean features a 3-axis accelerometer, a temperature sensor, and RGB LED. It supports iOS, OS X, and Windows 8 support. With the Handy BLE app, you can create a custom interface for your smartphone-controlled Arduino project even if you are not an experienced iOS programmer. The app is available for free.