The IQS229 ProxSense® IC is a self-capacitance controller designed for applications that are required to meet SAR regulations. The IQS229 can also be used to detect a long term presence as a movement detector. The IQS229 operates standalone and can be configured via digital inputs.



  • Azoteq movement detection technology
  • Designed for SAR test specification compliance
  • Automatic Tuning (ATI)
  • Internal Capacitor Implementation (ICI)
  • Supply voltage: 1.8V to 3.6V
  • External strap options for quick configuration
  • Streaming data option
  • Advanced on-chip digital signal processing
  • Ultra Low Power (30uA)
  • Robust UI for long term stability
  • Separate activation and movement outputs
  • 3x3mm DFN10 package
  • Detection distance of more than 25mm


  • Displays and human interface devices
  • Proximity enabled backlighting
  • Mobile devices
  • GUI trigger on proximity detection
  • On ear activation
  • SAR compliance
  • Wearable device usage detection
  • Wake up from standby detection
  • LED flashlights
  • White goods and appliances
  • Office equipment, toys
  • Replacement for electromechanical switches
  • Find-In-The-Dark (FITD) applications
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Includes 3x IQS229 Stamp modules.
Embed into custom design and interface to host MCU to evaluate proximity and SAR abilities.

Iqs229 Ev01 Azoteq Product Evaluation Kits
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User Guide

Azoteq provides software used for the serial streaming of data to a computer utilising the Azoteq USB-dongles. Each IC has its own dedicated software and is intended for prototyping purposes and can be found on the Azoteq website under Software and Tools.

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User Guide
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