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Touch Libraries

Last modified by Microchip on 2026/03/05 10:02

Microchip offers a variety of touch libraries based on two different capacitive sensing techniques to suit the requirements of your application and the microcontroller you choose. These two techniques are covered in the following sections.

Peripheral Touch Controller (PTC)

The Peripheral Touch Controller (PTC) Library is designed to enable capacitive touch sensing (buttons, sliders, wheels) on Microchip microcontrollers. The PTC hardware, integrated into many Microchip MCUs, works with this library to provide robust, low-power, and high-sensitivity touch interfaces. For more details on the library, please go through the Peripheral Touch Controller Library.

Capacitive Voltage Divider (CVD)

Microchip’s Capacitive Voltage Divider (CVD) technology is an advanced touch-sensing solution designed to enable reliable and accurate detection of touch inputs on various surfaces, including buttons, sliders, and 2D touch surfaces. CVD technology utilizes changes in capacitance to sense the presence and location of a finger or conductive object, making it ideal for modern user interfaces in consumer electronics, industrial controls, and automotive applications.

For more details on the library, please go through Capacitive Voltage Divider.