Enhanced PIR sensing

The IQS62x ProxFusion® IC’s can be configured as a multifunctional Pyroelectric Infrared Radial
(PIR) sensor. This configuration can be used for applications such as energy efficient occupancy
detection and other applications by means of movement detection. Further integrated features of the ProxFusion® IC’s
include capacitive prox/touch sensing, inductive sensing, ambient light measurement, temperature and Hall effect
sensing. These features can be combined with the PIR sensors for energy efficient lighting, room
occupation & security applications.

Overview Presentation: View

Application & Design note: View

Quick Start Guide: View

Demo Software - IQS62x PIR Arduino Nano: Download

Status: Production


Typical uses:PIR Prentjie2

  • Room occupancy detection
  • Lighting applications
  • Alarm systems
  • Smart Home systems
  • Movement detection
  • Under Cabinet Lighting (UCL)
  • Battery powered PIR sensor solutions


Adavantages over conventional PIR sensing ciruitry:

  • Raw data outpput for smart DSP algorithm
  • Adjustable sensitivity (gain) via I2C
  • Less components required
  • Smaller PCB and less PCB layers required
  • Multiple features (PIR/tamper detection/magnetic switch/ALS) on one IC
  • Two PIR elements measured by one IC
  • Low power consumption - IQS62x current less than 6uA (fs-10Hz)
  • Less MCU processing required
  • Smart tamper detection
  • SNR: 38dB


Evaluation Kit available

 Arduino Nano Shield can be connected via a CT210A USB dongle1 to PC GUI for evaluation of:Nano Shield

  • PIR sensing (Movement sensing)
  • Capacitive sensing
  • Inductive sensing
  • Sample coil/touch pad supplied
  • Ambient Light Sensing (ALS)2
  • Hall-effect sensing

Contact your Azoteq sales representative or This email address is being protected from spambots. You need JavaScript enabled to view it. for a kit.

1 Sold seperately

Only for IQS621