Software Library To Implement Gesture-enabled Touch Surfaces

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Capacitive touch has become ubiquitous across a wide range of industries and applications, replacing the knobs and buttons that once controlled our electronics with smooth, intuitive touch panels. Previously a novelty on high-end products, consumers now expect touch control on everyday devices such as headphones, remote controls, coffee makers and thermostats without paying a premium for the interface. These expectations are paired with requirements like low power consumption, higher cost optimization and feature integration.

Low-cost solution to implement gesture-enabled touch surfaces

Microchip has unveiled a new 2D Touch Surface library that enables designers to easily implement touchpads using the company’s 8-bit PIC and AVR microcontrollers (MCUs) and 32-bit SAM MCUs.

Available free of charge with the purchase of any compatible MCU, the library provides a simplified, low-cost solution for embedded applications, according to the firm.

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The library is well suited for adding touch to a variety of applications across consumer electronics, automotive and industrial industries, such as smart speakers, steering wheels or thermostats.

Ideal for implementing small touchpads and screens, the 2D Touch Surface library eliminates costs by running on a device’s existing MCU. This removes the need for a dedicated touch controller, giving product designers the flexibility to add finger position tracking and gesture detection, such as swipes, pinch and zoom, to products.

The touch library is provided through Microchip’s code configurators: MPLAB Code Configurator (MCC) for PIC MCUs and Atmel START for AVR and SAM MCUs. Both software tools enable simplified graphical configuration and accelerate development with lean C code tailored for individual project needs, said Microchip.

“Capacitive touch has become mainstream, and we’re continuing to see growth in the number of applications that require low-power, gesture-enabled touch surfaces,” said Fanie Duvenhage, vice president of Microchip’s touch and gesture business unit. “The 2D Touch Surface library makes the realization of small touchpads and screens easier and more affordable.

Development Tool

The DM080101 Water Tolerant Touch Surface development kit enables easy evaluation of the 2D Touch Surface library. The kit demonstrates water tolerance and noise immunity on a touchpad and has two touch buttons, all controlled by the same MCU.

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Availability

The 2D Touch Surface library is available for free with the purchase of any compatible MCU. The DM080101 Water Tolerant Touch Surface development kit is also available now.

 

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