What is a Capacitive switch? and Advantages of Capacitive switch

capacitive switch is an electronic capacitor that measures changes in capacitance values when a conductive object such as your finger moves closer to the sensing area. The change in that value is interpreted and registers that change as an activation of the switch. A capacitive switch can be either a flexible printed circuit or a sensing pad on a rigid PCB. A capacitive switch can incorporate a lot of functionality that is not easily attained with a normal membrane or mechanical switch. Capacitive switches can have intensity sliders, sensitive areas in multiple shapes such as a circle, and can have varying levels of sensitivity for activation. You also can have options like a proximity sensor incorporated into a capacitive switch for additional functional benefits. As a capacitive switch is a sensor that senses through a non-conductive surface, thicker substrates can be used such as safety glass, or acrylic materials for a very robust switch. This can also give the ability for additional gasketing for harsh environments. It is also possible to achieve very intricate backlighting solutions with capacitive switch technologies.

What is a Capacitive switch? and Advantages of Capacitive switch


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