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Demo board eases capacitive touch-sensing interface

Posted: 10 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:demo board? capacitive touch sense? MCU interface?

PICDEM Touch Sense 2 Demo Board

Microchip Technology Inc. released the latest addition to its mTouch capacitive touch offerings, the PICDEM Touch Sense 2 Demo Board.

The easy-to-use board comes with the updated, royalty-free mTouch Sensing Solution Software Development Kit (SDK) and is populated with a 16bit PIC24FJ256GB110 MCU, which features an integrated Charge Time Measurement Unit (CTMU) peripheral for fast capacitive touch sensing. This is also the claimed to be the first 16bit MCU family with USB On-The-Go.

The board and supporting materials provide a complete platform for implementing capacitive touch-sensing interfaces, without the need for external components. Additionally, with the PIC24FJ256GB110 family's rich peripheral integration and 256 Kbytes of Flash memory, and Microchip's broad portfolio of free and low-cost software libraries, embedded designers can use a single MCU to cost effectively implement a wide variety of additional user-interface functions, including QVGA touch-screen displays, speech-based audio prompts and USB connectivity.

Many applications in the consumer, appliance, medical, industrial and automotive markets are rapidly adopting capacitive touch-sensing technology for reasons such as aesthetics, maintenance, cost and cleanliness. Expanding on Microchip's existing 8bit PIC MCU-based mTouch development tools for capacitive touch, the PICDEM Touch Sense 2 Demo Board enables designers to implement the user interface with Microchip's portfolio of 16bit PIC24F MCUs. Equipped with capacitive touch-sensing keys and sliders, the board allows designers to evaluate this interface in their applications using the Windows-based mTouch Diagnostic Tool, an easy-to-use GUI that is included in the mTouch Sensing Solution SDK. The software libraries, source code and other support materials that come with the board further shorten development time and reduce design costs.

"With this new demonstration board, we are enabling designers to take advantage of the cost-effective, feature-rich and low-power PIC24F 16bit MCU family in their capacitive-touch applications," said Mitch Obolsky, VP of Microchip's advanced MCU architecture division.

The PICDEM Touch Sense 2 demo board (Part # DM164128), which includes mTouch Sensing Solution SDK and a USB cable, is available for $99.99.

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