I2C GG Capacitive Touch Panel 42 Inch Android Usb Touchscreen

 
What is capacitive touch and what can it be used for

In many cases, machines, home appliances and electronic devices have to be controlled by human beings. It is part of everyone’s daily life and we are familiar with switches, push buttons, keyboards, knobs and slider controls. Since some time, a new species of control elements invades our life. It started in consumer products like mobile phones and MP3 players but moves into all kind of devices now. Those talks are about touch sensors. Simple electrodes underneath the housing replace Fujitsu Microelectronics Europe GmbH Page 3/12 mechanical input devices with moving elements. The shape and layout of these sensor electrodes can be designed in a very flexible way, leading to appealing, modern product designs with enhanced usability. A wide range of elements can be implemented with touch sensor electrodes: simple buttons and keyboards, linear or circular sliders, transparent touch elements on displays or even buttons on wooden surfaces. As the sensor electrodes are placed inside the device, no openings are required. The housing is more robust and cost-effective and ideally suited for rough environments where dust and moisture could creep into the device. Especially for medical applications or devices used in clean environments like in the food industry, capacitive touch control enables hygienic casings. Conventional