Home
Design & development
Reference designs

TIDM-PROXIMITYSENSING

10-cm Capacitive Proximity Detection Reference Design

Design files

TIDM-PROXIMITYSENSING

Design files

Overview

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.

Features
  • 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
Download View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

download Bill of materials (BOM) — TIDM-PROXIMITYSENSING
TIDR100.PDF (151 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download PCB layout — TIDM-PROXIMITYSENSING
TIDC055.ZIP (236 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDM-PROXIMITYSENSING
TIDR079.PDF (134 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430G2553 — 16 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

Data sheet: PDF

Start development

Software

Code example or demo

TIDC058 — 10-cm Capacitive Proximity Detection Reference Design Code

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDM-PROXIMITYSENSING — 10-cm Capacitive Proximity Detection Reference Design
Download options

TIDC058 — 10-cm Capacitive Proximity Detection Reference Design Code

close
Latest version
Version: 01.00.00.00
Release date: Aug 27, 2013
open-in-new

View all versions

download

10-cm Capacitive Proximity Detection Reference Design Code (zip)  — 26 K

SHA-256 checksum
Hardware development
Reference design
TIDM-PROXIMITYSENSING — 10-cm Capacitive Proximity Detection Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc058 or www.ti.com/lit/xx/tidc058/tidc058.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC058. Please update any bookmarks accordingly.

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Application note 10-cm Capacitive Proximity Detection With MSP430 Microcontrollers (Rev. A) Jul 8, 2013

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support.

Disclaimer
See the important notice and disclaimer covering reference designs and other TI resources.