touch screen with duet display.The infrared receiving circuit is very important in the infrared touch screen. It completes the collection of the light intensity signal of the corresponding infrared transmitting tube and obtains the basic data to determine whether it is touched. Infrared receiver circuit of the present paper is through the chip ADS7830 achieved, as the principle of the circuit at FIG illustrated :( lists only four groups received)

touch screen with duet display.The infrared receiving circuit is very important in the infrared touch screen. It completes the collection of the light intensity signal of the corresponding infrared transmitting tube and obtains the basic data to determine whether it is touched. Infrared receiver circuit of the present paper is through the chip ADS7830 achieved, as the principle of the circuit at FIG illustrated :( lists only four groups received) 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.