raspberry pi 7 inch touch screen keyboard.Abstract: In 2007 , Apple introduced the iPhone , using the "projection-type mutual capacitance" ( Projected, Mutual-Capacitance ) touch screen, which can respond to click on two fingers, a large touch-screen design makes it a hit. At present, the scope of touch screen applications has become more and more extensive, from industrial plant control , operating systems, electronic inquiry facilities for public information inquiry, cash dispensers for commercial use, to mobile phones for consumer electronics, PDAs , Digital cameras, etc. can see the touch screen. Of course, the most widely used of these is mobile phones.

raspberry pi 7 inch touch screen keyboard.Abstract: In 2007 , Apple introduced the iPhone , using the "projection-type mutual capacitance" ( Projected, Mutual-Capacitance ) touch screen, which can respond to click on two fingers, a large touch-screen design makes it a hit. At present, the scope of touch screen applications has become more and more extensive, from industrial plant control , operating systems, electronic inquiry facilities for public information inquiry, cash dispensers for commercial use, to mobile phones for consumer electronics, PDAs , Digital cameras, etc. can see the touch screen. Of course, the most widely used of these is mobile phones. 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.