ST-00081

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Wide Angle PIR Sensor


Contents

Overview

The Wide Angle PIR Sensor features a larger detection angle of 180˚. This makes it ideal in applications where users need to track movements across a large, open area. The Wide Angle PIR Sensor is a pyroelectric device, and it detects motion by sensing changes in the infrared levels emitted by surrounding objects. When motion is detected, the Wide Angle PIR Sensor outputs a high signal on its output pin.

ST-00081 Wide Angle PIR Sensor Rev A front 2.jpg ST-00081 Wide Angle PIR Sensor Rev A back 3.jpg

Product Features

  • Single bit output
  • Small size and mounting holes for easy concealment
  • On-board LEDs
  • Power 3V to 6VDC operation 150uA idle, 3mA active(no load) current draw
  • 30mA active(0 ohm resistor) high current draw
  • Detects movement up to 30 ft away
  • 180˚ detection angle for widespread motion detection
  • Adjustable sensitivity to tune for different operating conditions
  • User-selectable "night-time mode" for detecting motion in decreased lighting conditions
  • 4-pin SIP package perfect for breadboard-friendly projects (EN is an optional pin so you can connect the PIR using a standard servo extension cable)

Technical Details

  • Voltage requirements: 3.0 to 6.0 VDC
  • Current requirements: 150 uA idle, 3 mA active (no load)
  • Communication: Single-bit high/low output
  • Dimensions: 1.42 x 1.42 x 0.79 in (36.0 x 36.0 x 20.2 mm)
  • Operating temperature range: 32 to 122 °F (0 to 50 °C)

Application Ideas

  • Security Alarm
  • Motion-activated nightlight
  • Holiday animated props


Warning: Voltage- and Static-sensitive Device

  • Wide Angle PIR Sensor is a delicate, static-sensitive device requiring proper voltage
  • Observe proper anti-static techniques when handling them.
  • Disconnect all power before connecting or disconnecting the module to a circuit.
  • Do not reverse polarity of the power connections, it could destroy the device.


Module Dimensions

ST-00081--Wide-Angle-PIR-Sensor-RevA-Dimension.png


Pin Definitions

Pin Symbol Type Function
1 GND Ground Ground(0V)
2 VCC Power Power supply
3 OUT Output PIR signaling; HIGH = movement/ LOW = no movement
4 EN (Optional) Input PIR enable(default); HIGH = Enable / LOW = Disable [can be left unconnected]

Indicator LED

Status Detail
On Power on warm-up
Movement detected
Off No movement detected


Specifications

Symbol Description Minimum Typical Maximum Units
VCC Supply Voltage 3.3 5.0 6 V
ICC Supply Current(No load) 2.8 3 3.2 mA
GND Ground reference connection - 0 - V
VIH Signal high (input) 2.4 3.3 5.0 V
VIH Signal low (input) -0.3 GND 0.3 V
VOH Signal high (output) 2.4 VCC - V
VOL Signal low (output) -0.3 GND 0.3 V


Setting

  • Bottom view of PIR Sensor

ST-00081--Wide-Angle-PIR-Sensor-Setting-Bottom-view.png

  • Mode Setting
Symbol Mode Description
1 Night Only activated at night(Depends on the lightness of the environment)
2 All time Activated all the time(Disable the light sensor option)


  • Sensitivity Adjust
Direction Description
Counterclockwise Increase the trigger sensitivity
Clockwise Decrease the trigger sensitivity


Typical Application

Connect to 3.3V or 5V microcontroller. EN can be left disconnected (so you can use a 3-wire cable). Only use EN to turn off the sensor remotely for saving power.

ST-00081--Wide-Angle-PIR-Sensor-connection.png

R1 = 0~4.7K

Resources and downloads