Gesture-based capacitive touch speaker interface reference design
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Key Document


The Gesture-Based Capacitive Touch Speaker Interface Reference Design demonstrates an ultra-low-power panel for controlling speaker systems. The design uses an MSP430™ microcontroller with CapTIvate™ technology for recognizing capacitive touch events. Using a self-capacitance configuration of sensors to detect proximity, tap, drag, and swipe gestures, this design can enhance a speaker system's interface and improve the user experience. The MSP430FR2633 MCU drives all capacitive sensing functionality.

  • MSP430 CapTIvate MCU for capacitive touch
  • Capacitive touch button gestures: tap, tap and hold
  • Capacitive touch slider and wheel gestures: tap, double tap, swipe and slide
  • Low power consumption: <5 μA while idle using wake-on-proximity, <500 μA in active mode
  • Moisture tolerant design: tolerance to moisture spray and droplets in certain environments

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR2522  Capacitive Touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2533  16 MHz Ultra-Low-Power Microcontroller with 16 KB FRAM, CapTIvate touch technology  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2633  MSP430 MCU with CapTIvate technology - the lowest power, most noise-immune capacitive touch  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR2522 Download Download
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MSP430FR2533 Download -
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MSP430FR2633 Download -
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Technical Documents

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Datasheet (1)
Title Type Size (KB) Date
PDF 4110 09 Dec 2019
Application notes (1)
Title Type Size (KB) Date
PDF 585 13 Dec 2018
User guides (1)
Title Type Size (KB) Date
PDF 734 11 Dec 2018
Design files (6)
Title Type Size (KB) Date
ZIP 465 11 Dec 2018
ZIP 847 11 Dec 2018
PDF 415 11 Dec 2018
PDF 55 11 Dec 2018
PDF 81 11 Dec 2018
PDF 74 11 Dec 2018
Related Tools & Software

Reference Designs  ( 1 )

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
MSP CapTIvate MCU Development Kit  MSP-CAPT-FR2633  Evaluation Modules & Boards 
MSP430F5529 USB LaunchPad Evaluation Kit  MSP-EXP430F5529LP  Evaluation Modules & Boards 

Software (2)

Name Part Number Software Type
CapTIvate™ Design Center GUI for MSP430™ Capacitive Sensing MCUs  MSPCAPTDSNCTR  Software Libraries 

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