Laser pointer capable of real-time sensing

In the process of popularization of multimedia teaching, there is a general problem of how to integrate modern teaching equipment with teachers' classroom teaching habits. At present, in the process of teaching demonstrations, teachers often need to stand by the computer and explain while operating the computer. Where important points need to be emphasized, they must stand up from time to time and give pointers. They originally provide convenient multimedia demonstration equipment. , But it has restricted the teachers’ rich classroom language. In order to solve this problem, a laser pointer is designed to assist teaching so that teachers can interact with the computer at a distance by using the laser pointer.