Interfacing sensors from Android mobile phone via Bluetooth

Most of the Android powered mobile phones have many in-built sensors. Android API gives us access to these sensors in API level without low level programming. Hence, we can use Bluetooth and these sensors to get sensor data to our embedded systems (may be for your robot). I modifed the "Blutooth Chat" application sample included in Android SDK to send accelerometer data via Bluetooth from my Sony Ericsson Xperia X8.