TIDM-LPBP-CAPTOUCH Reference Design

Texas Instruments

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

Description

This reference design demonstrates an ultra-low power implementation of capacitive-touch inputs for various human machine interface (HMI) requirements in consumer: industrial and other applications. This deisgn leverages unique features available in the MSP430 value-line microcontroller that enables you to interface capacitive-touch elements directly to a microcontroller input/output 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 hardware and software reference design to enable you to quickly and easily replace any physical button with a capacitive-touch element. This combination provides cost effectiveness for adding capacitive touch to consumer electronics: point-of-sales machines and devices that have a physical button.

Features
  • Capacitive touch elements:Scroll wheelButtonProximity sensorNine on-board LEDs for instant feedbackTimer-based UART communication enables interface to PCOpen-source GUIFully supported by the MSP430 capacitive touch sense library
Applications
  • Clinical 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

Download the bill of materials for TIDM-LPBP-CAPTOUCH Download

Schematic

Quickly understand overall system functionality.

Download the schematic for TIDM-LPBP-CAPTOUCH

Design File

Download ready-to-use system files to speed your design process. Get Viewer.

Download the design file for TIDM-LPBP-CAPTOUCH