PPT auxiliary device capable of performing sketching

The invention relates to the field of computers, and discloses a PPT auxiliary device capable of performing sketching. The PPT auxiliary device comprises a projection feedback device, a wireless remote control pen, a wireless signal receiver and upper computer software. When the operation is completed by existing projection equipment, a mouse needs to select a brush tool and then clicking is performed, the existing projection equipment is not convenient enough, and a line making track cannot be controlled easily by applying the mouse. According to the PPT auxiliary device capable of performing sketching, sketching and writing on PPT can be easily and conveniently achieved, and the key content is emphasized more conveniently during PPT demonstration; the device can be applied to a drawing board and a virtual touch screen, and the projection application flexibility is greatly improved. 本发明涉及计算机领域，公开了种可勾画的PPT辅助装置，包括投影反馈装置、无线遥控笔、无线信号接收器和上位机软件，目前的投影设备完成此项操作需要鼠标选择画笔工具再进行点击，不够方便，且运用鼠标不好操控划线的轨迹。可勾画的PPT辅助装置，可以简便的实现在PP