SR501 PIR حساس

SR501 PIR Sensor

The SR501 PIR Sensor is a passive infrared motion detector designed for reliable motion sensing in various applications. It utilizes a pyroelectric sensor and Fresnel lens to detect infrared radiation changes caused by moving objects. The module features adjustable sensitivity and delay time, allowing customization for different environments. Its compact design and low power consumption make it suitable for battery-powered devices and embedded systems.

Features

• Passive infrared motion detection.
• Adjustable sensitivity and delay time.
• Dual trigger modes: repeatable and non-repeatable.
• Wide operating voltage range.
• Low quiescent current for energy efficiency.
• Compact size with mounting holes for easy installation.

Specifications

Parameter

Value

Operating Voltage

4.5–20VDC

Quiescent Current

<50µA

Output Level

High: ZKEEP0Z / Low: ZKEEP1Z

Delay Time

0.3s–200s (adjustable)

Block Time

2.5s (default)

Detection Angle

<120°

Detection Range

Up to 7meters

Operating Temperature

-ZKEEP2Z to +ZKEEP3Z

Dimensions

ZKEEP4Z x ZKEEP5Z

Lens Diameter

ZKEEP6Z

PINOUT

Pin

Description

VCC

Connect to ZKEEP7Z to ZKEEP8Z.

OUTPUT

Digital sensor output (active HIGH) – Normally connects to a digital input pin on a microcontroller.

GND

Connect to system ground. This ground needs to be in common with the microcontroller.

Applications

• Automated lighting control.
• Security and intrusion detection systems.
• Energy-saving devices.
• Home automation projects.
• Robotics and motion tracking.

Package Contents

• 1x SR501 PIR Sensor.

Documents

• SR501 Sensor datasheet.