TIDM-LPBP-CAPTOUCH Reference Design

Texas Instruments

Low Power Capacitive Touch Solution Human Machine Interface (HMI) Apps Reference Design

Description

This TI Design demonstrates an ultra-low power implementation of capacitive touch inputs for various human machine interface (HMI) requirements in consumer: industrial & other applications. This solution leverages unique features available in the MSP430 Value Line microcontroller that enables developers to interface capacitive touch elements directly to a microcontroller I/O pin without the need for external: or additional passive components. The Capacitive Touch BoosterPack features several capacitive touch elements including a scroll wheel: button: and proximity sensors. When paired with the MSP430 LaunchPad this combination provides a complete hardware and software reference design to enable developers to quickly and easily replace any physical button with a capacitive touch element. This combination provides a cost effective solution for adding capacitive touch to consumer electronics: point of sales machines: and devices that have a physical button.

Features
  • Capacitive touch elements: Scroll WheelButtonProximity Sensor 9 on-board LEDs for instant feedback Timer-based UART communication enables interface to PC Open source GUI Fully supported by the MSP430 Capacitive Touch Sense Library "
Applications
  • Pulse oximeter
  • 3D printer
  • Standard notebook PC
Product Categories

Parts

Part Number Name Companion Part
MSP430G2452 MSP430G2452 Buy Datasheet
MSP430G2553 MSP430G2553 Buy Datasheet
TPD2E001 TPD2E001 Buy Datasheet
TUSB3410 TUSB3410 Buy Datasheet

Bill Of Materials

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Schematic

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Design File

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