10-cm Capacitive Proximity Detection Reference Design


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MSP MCUs featuring CapTIvate™ technology are the newest generation of capacitive touch solutions from TI. These MCUs are the lowest power capacitive touch microcontrollers in the world and the first to feature an IEC61000-4-6 certified solution. Get started with the MSP CapTIvate MCU Development Kit, proximity sensors design guide and proximity sensing and gestures example project.

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This reference design, featuring the Value Line MSP430 MCUs (MSP430G2xx) with unique PinOsc capability, can implement a simple mechanism to measure capacitance. This capability not only allows for touch detection, but also provides enough sensitivity to support proximity applications. This implementation demonstrates a 10+ cm proximity range.

  • Low power, simple capacitive proximity sensing application
  • Leverages unique pin oscillation I/O available on MSP430 Value Line MCUs
  • Demonstrates greater-than 10cm proximity range detection
  • Implements the "Fast RO" method for a portable, battery powered consumer product
  • Includes all hardware & software design files
  • PC-side GUI is also available to aid in development


TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430G2553  MSP430G2x53, MSP430G2x13 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents
Application notes (1)
Title Abstract Type Size (KB) Date Views
Multiple Files   08 Jul 2013 580
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 150 28 Aug 2013 59
ZIP 236 27 Aug 2013 72
PDF 134 27 Aug 2013 290
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Software (1)

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