具有滚轮翻页功能的PPT无线翻页器设计

The Designs of PPT Wireless Pager with Wheel Flip Function

为了方便使用,设计了一种PPT翻页器,系统分为发射电路和接收电路两个模块,每个模块都包含一个STC8952单片机和蓝牙模块,发射电路还包括一个鼠标滚轮编码器和D触发器构成鉴相电路,当发射电路的按键按下或滚轮滚动时,经过蓝牙主机发送,接收电路接收到指令后,经USB通信模块送入PC机,PC机接收命令后模拟键盘按键事件和鼠标滚轮滚动事件,来控制PPT的翻页。

In order to facilitate the use of a PPT, a PPT wireless pager was designed. The system was divided into two modules, The system is divided into two modules： transmitting circuit and receiving circuit, Each module contains a STC8952 MCU and Bluetooth module, The transmitting circuit also comprises a mouse encoder and a D trigger to form the phase detector circuit, When the button of the transmitting circuit is pressed or the rolling wheel is rolled, the data will be sent by the Bluetooth host, after receiving the instruction, the receiving circuit send it to the PC through the USB communication module, finally the pc simulate the keyboard and the roll event, to achieve the controlling of the PPT.