蓝牙风扇，通过HC-05与手机通信，手机端发送‘a’定时与温控模式切换，‘b’风扇开关，‘c’简易计算器开关，‘0’、‘1’、‘2’、‘3’数字按键‘d’清零，‘e’加法功能-Bluetooth fans, HC-05 and sent via mobile communications, mobile terminal　a　timed switch the temperature mode,　b　fan switch,　c　simple calculator switch,　0 ,　1 ,　2 ,　3　keypad　d　cleared,　e　addition function