chinese: 我将通过学习，将android官方自带的蓝牙聊天例程BluetoothChat修改为可以和 单片机蓝牙模块进行串行通信的程序。本程序稍加修改即可作为蓝牙遥控器等更具体的应用 。连接设备不限于单片机，应该说只要你的设备有蓝牙模块，或者是外界了蓝牙模块，即可 进行数据交互。
english: In this project, i will try my best to change the android sdk sample project 'BluetoothChat' to be an 'BluetoothSerial' project. it will communcate with a bluetooth model which is attached to a MCU like:arduino、arm based miniPC etc..
note: the Bluetooth is 2.0,and the 4.0 may not work well.