The intelligent blackboard teaching integrated machine has two touch technologies: infrared touch and capacitive touch, and infrared touch is widely used at present. Infrared optical touch interaction can recognize 32-point input at the same time at most, and the response speed is as fast as 8 milliseconds. Fine writing and drawing are smooth and free, and the input within the range of 3-8mm can be effectively recognized. The fine positioning accuracy can support the pen tip mode, and the writing record can be saved and shared to the mobile phone with one click.
It has the function of wireless screen transmission, which is not affected by the wireless screen transmission of "wired" system, supports the function of touch feedback, and controls the large screen and small screen in two directions, so that you can get rid of the complicated wired connection immediately and easily realize the wireless screen transmission of desktop computer pictures to smart flat screen; It can also be transmitted back in the opposite direction. It is very convenient to control and annotate each other on the intelligent blackboard teaching integrated machine and desktop computer, and the dual screens are displayed synchronously.