touch screen display glass.The seven-wire touch screen is implemented in the same way as the five-wire touch screen except that a line is added to each of the upper left corner and the lower right corner. When performing a screen measurement, connect one line in the upper left corner to VREF and the other line to the positive reference end of the SAR ADC . At the same time, one line in the lower right corner is connected to 0V , and the other line is connected to the negative reference terminal of the SAR ADC . The conductive layer is still used to measure the voltage of the voltage divider.

touch screen display glass.The seven-wire touch screen is implemented in the same way as the five-wire touch screen except that a line is added to each of the upper left corner and the lower right corner. When performing a screen measurement, connect one line in the upper left corner to VREF and the other line to the positive reference end of the SAR ADC . At the same time, one line in the lower right corner is connected to 0V , and the other line is connected to the negative reference terminal of the SAR ADC . The conductive layer is still used to measure the voltage of the voltage divider. 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.