interactive screen trolley. When the transmitting tube is lit, the microprocessor will simultaneously address the receiving tube corresponding to the position of the transmitting tube through the address line, and the received light flux is amplified by the amplifier and AD converter and converted into a digital signal . The data line is transmitted to the microprocessor for processing , so as to determine whether a touch occurs. Through this processing, the transmitting tube and the receiving tube can be in one-to-one correspondence, thereby laying a foundation for determining the touch position.

interactive screen trolley. When the transmitting tube is lit, the microprocessor will simultaneously address the receiving tube corresponding to the position of the transmitting tube through the address line, and the received light flux is amplified by the amplifier and AD converter and converted into a digital signal . The data line is transmitted to the microprocessor for processing , so as to determine whether a touch occurs. Through this processing, the transmitting tube and the receiving tube can be in one-to-one correspondence, thereby laying a foundation for determining the touch position. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.