10-cm Capacitive Proximity Detection Reference Design


Description & Features

Technical Documents

Support & Community

Order Now

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


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)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430G2553  MSP430G2x53, MSP430G2x13 Mixed Signal Microcontroller  Ultra-low Power  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents
Application notes (1)
Title Abstract Type Size (KB) Date Views
Multiple Files   08 Jul 2013 463
Design files (3)
Title Abstract Type Size (KB) Date Views
PDF 150 28 Aug 2013 75
ZIP 236 27 Aug 2013 57
PDF 134 27 Aug 2013 182
Related Tools & Software

Software (1)

TI E2E™ community

TI E2E Community

As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of use.


Visit the TI Wiki