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mTouch™ Development Kit and 8-Bit MCU


Microchip’s mTouch technology for flexible, royal-free solutions with GUI-based tools


8-bit MCUMicrochip's mTouch™ projected capacitive touch-screen sensing technology is the first in a series of patent-pending releases supporting projected capacitive touch-screen solutions. Microchip has also added the mTouch projected capacitive development kit, as well as the PIC16F707 8-bit microcontroller (MCU), which features two 16-channel capacitive sensing modules (CSMs) that can run in parallel for increased sampling speed.

mTouch projected capacitive touch-screen technology enables designers to quickly develop and implement robust glass-front user interfaces that simplify user interaction via features such as gestures. Typical applications include global positioning systems, thermostats, mobile handheld units, and other devices that use smaller displays with a finger input.

Building upon the mTouch capacitive touch-sensing technology, this royalty-free, robust technology now works through gloves and on surfaces that contain liquids. It also enables Braille to be used on capacitive touch-sensing interfaces. Designers can integrate mTouch capacitive touch-sensing functionality with their existing application code in an 8, 16 or 32-bit PIC® MCU, thus reducing total system costs.

  • Overview
  • Features
  • Diagram
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Overview

Touch sensing continues to gain traction as an alternative to traditional pushbutton user interfaces, because it enables a completely sealed, modern-looking design. Major applications for mTouch capacitive touch-sensing user interfaces include those in the appliance market due to the possibility of a stainless steel front panel, the industrial market due to the technology’s robustness, and the automotive market due to the technology’s sleek aesthetics. Other applications include global positioning systems, thermostats, mobile handheld units, and other devices that use smaller displays with a finger input. Low-power mTouch capacitive touch-sensing technology features an active current of less than 5μA, helping to reduce overall power consumption.

Features

mTouch™ Projected Capacitive Development Kit
The mTouch projected capacitive development kit includes a 3.5-inch sensor mounted on a sensor board, a projected-capacitive board with the PIC16F707 MCU, and fully functional firmware. The kit enables users to connect sensors to up to 24 channels without modifying the firmware. The open source code supports sensors with up to 32 channels, and the kit includes a graphical user interface (GUI) tool that enables users to easily adjust key parameters that are important to their designs.

PIC16F707 Microcontroller
In addition to two CSMs, the low-power PIC16F707 8-bit MCU has a wide operating voltage range of 1.8 – 5.5V with a typical projected-capacitive sensor application operating current of approximately 1.5mA at 5V.

Diagram


mTouch™ Projected Capacitive

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mTouch™ Projected Capacitive Development Kit
Digi-Key P/N Manufacturer P/N Description  
DM160211-ND DM160211 KIT DEV MTOUCH PROJ CAPACITIVE High-Capacitance MLCC Datasheet

PIC16F707 Microcontroller
Digi-Key P/N Manufacturer P/N Description  
PIC16F707-I/PT-ND PIC16F707-I/PT IC MCU 8BIT FLASH 44TQFP High-Capacitance MLCC Datasheet
PIC16F707-I/ML-ND PIC16F707-I/ML IC MCU 8BIT FLASH 44QFN
PIC16F707-I/P-ND PIC16F707-I/P IC MCU 8BIT FLASH 40-DIP