High Quality Content by WIKIPEDIA articles! Capacitive sensing is a technology for detecting proximity, position, etc., based on capacitive coupling effects. Capacitive sensing as a human interface device (HID) technology, for example to replace the computer mouse, is becoming increasingly popular. Capacitive sensors can be recognized in many popular consumer products such as laptop trackpads, MP3 players, computer monitors and cell phones, but it is certainly not limited to these applications. More and more engineers choose capacitive sensors for their flexibility, unique human-device interface and cost reduction over mechanical switches. Capacitive touch sensors have become a predominant feature in a large number of mobile devices and MP3 players and feature prominently in MIT's cyberflora robotics project. Capacitive sensors detect anything which is conductive or having dielectric properties. While capacitive sensing applications can replace mechanical buttons with capacitive alternatives, other technologies such as multi-touch and gesture-based touchscreens are also premised on capacitive sensing. The Apple iPod click wheel is a well known implementation of capacitive sensing.

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