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PIR Motion Sensor Module in Bangladesh
PIR Motion Sensor Module in Bangladesh

PIR Motion Sensor Module

SKU: 140303001336

Brand : Made in China

Warranty : 3 Days

৳ 95.04

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Category: Motion

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Description of PIR Motion Sensor Module

The HC-SR501 PIR Motion Sensor Module is a low-cost Passive Infrared (PIR) sensor designed to detect motion from warm objects such as humans and animals. It provides a simple digital HIGH/LOW output, making it easy to use with Arduino, Raspberry Pi, and other microcontrollers. With adjustable sensitivity, delay time, and trigger modes, it is ideal for security, automatic lighting, smart automation, and robotics projects.


Key Features

  • Passive Infrared (PIR) motion detection
  • Adjustable sensitivity and detection range
  • Adjustable delay time
  • H / L trigger modes
  • Digital HIGH/LOW output
  • Fresnel lens for wider detection coverage
  • Simple VCC, OUT, GND interface
  • Suitable for Arduino, Raspberry Pi & microcontrollers

Technical Specification

Parameter Details
Product Type PIR Motion Sensor Module
Model HC-SR501
Sensor Type Passive Infrared (PIR)
Operating Voltage 5–20V DC*
Detection Range 3–7m, Adjustable
Detection Angle <120°
Output Digital HIGH/LOW
Interface VCC, OUT, GND
Sensitivity Adjustable
Delay Time Adjustable
Trigger Mode H: Repeatable / L: Non-Repeatable
Lens Fresnel Lens

Note: Specification may vary slightly depending on manufacturer/batch.


How Does the PIR Sensor Work?

The PIR sensor detects changes in infrared radiation within its sensing area. When a warm object such as a person moves across the detection zones, the infrared energy received by the sensing element changes. The internal circuit processes this change and produces a HIGH signal at the OUT pin.

Fresnel Lens & Detection Zones

The Fresnel lens focuses and segments infrared radiation from different areas of the detection field onto the PIR sensing element, creating multiple detection zones.. When a warm object moves from one zone to another, the IR radiation changes, which the PIR circuit detects as motion.

When motion is detected:

  • The sensor Output goes HIGH.
  • Arduino reads the HIGH signal.
  • The system performs the programmed action, such as turning on a light, alarm, or display.

Sensitivity & Delay Control

PIR-Motion-Sensor-Module-Sensitivity

The module has two adjustable potentiometers:

  • Sensitivity: Adjusts the motion detection range.
  • Delay Time: Controls how long the output remains HIGH after motion is detected.

H & L Trigger Modes

PIR-Motion-Sensor-Module-Trigger-mode

  • H Mode: Repeatable trigger; additional movement can retrigger the output.
  • L Mode: Non-repeatable trigger; the output remains active for the configured period without repeated retriggering during the same cycle.

PIR Sensor Pinout

The HC-SR501 uses a simple three-pin interface, making it easy to connect with development boards.

PIR-Motion-Sensor-Module-Pinout

The OUT pin is the main signal connection. When the sensor detects motion, the output changes to a HIGH state, allowing a microcontroller to respond.


PIR Sensor Arduino Wiring & Setup

For a basic Arduino connection:

PIR-Motion-Sensor-Module-Arduino-Connection

PIR Sensor Arduino
VCC 5V
OUT Digital Pin 2
GND GND

After powering the module, allow approximately 30–60 seconds for initial stabilization before testing.


Power & Stability Tips

For reliable motion detection:

  • Use a stable power supply.
  • Keep wiring reasonably short.
  • Share a common ground with the controller.
  • Avoid direct sunlight and strong heat sources.
  • Keep the sensor away from fans or strong airflow.
  • Adjust sensitivity according to the required detection area.

Application

The HC-SR501 PIR Motion Sensor Module is suitable for:

  • Automatic lighting
  • Home security systems
  • Motion alarms
  • Smart home automation
  • Arduino & Raspberry Pi projects
  • Robotics
  • Occupancy detection
  • DIY electronics projects

Packaging Details

  • PIR Motion Sensor Module

Documentation of PIR Motion Sensor Module

Ratings & Reviews of PIR Motion Sensor Module

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20 Ratings and 0 Reviews

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By Ibne Hasan on 19 Oct 2021
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Questions & Answers about PIR Motion Sensor Module

Questions answered by Techshop (16)

I did not understand clearly. detect are only human or any metal movement?

By nizam679739 on 01 Jan 2023

Hello, it detects human and other animals bodies. Doesn't detect metal movement.

By TechShopBD on 03 Jan 2023

What is the minimum sensing distance?

By Morshedalam on 14 Oct 2020

Ranging distance : 3-7M (adjustable)

By TechShopBD on 14 Oct 2020

My sensor can not work,what can i will do now.......

By milonrana on 07 May 2019

Order ID please.

By TechShopBD on 08 May 2019

Require complete circuit. Are you sell complete circuit? I require complete circuit which can detect motion and alarm me

By mujahid7eng on 04 Dec 2017

We don't. It's mentioned in our Technical policy. However, we have tutorial on this. https://www.techshopbd.com/tutorial-categories/mcu-projects/122/-techshop-bangladesh

By TechShopBD on 04 Dec 2017

Can I use 12V at it's VCC ?

By tanvir14ahmed on 27 Oct 2017

Working voltage: 5V-20V

By TechShopBD on 28 Oct 2017

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What is the price of PIR Motion Sensor Module in BD?

The latest and best price of PIR Motion Sensor Module in BD is BDT 95.04 Taka. You can purchase the PIR Motion Sensor Module at the best price on TechShopBD.com or visit our office to pick yours up today.

Where to buy a PIR Motion Sensor Module in BD?

You can easily buy the PIR Motion Sensor Module at the best price in BD from TechShopBD.com (our online store) or visit our physical office.

Top Reasons to Choose TechShopBD for Purchasing PIR Motion Sensor Module

When you choose TechShopBD for purchasing PIR Motion Sensor Module, you’re not just buying a product — you're investing in quality, support, and convenience. Here’s why thousands of customers trust us:

  • Competitive Prices: We offer PIR Motion Sensor Module at highly competitive rates, ensuring great value for your money.
  • High-Quality Products: All our products are high-quality and sourced directly from trusted manufacturers and suppliers.
  • Quality Passed: Every product undergoes strict quality checks to ensure it meets high performance and durability standards.
  • Expert Technical Support: Our experienced technical team is always ready to assist you with any queries or technical issues.
  • Warranty & Replacement Facility: Enjoy peace of mind with our warranty coverage and an easy replacement process for eligible products.
  • After-Sales Support: Get reliable assistance even after your purchase to ensure a smooth and hassle-free experience.
  • Fast Delivery: We ensure quick and safe delivery across BD.
  • Product Documentation: Access detailed manuals and datasheets to help you understand and use your PIR Motion Sensor Module effectively.
  • Blogs and Videos: Explore step-by-step tutorials, detailed blog posts, and helpful video guides to easily set up and get the best performance from your PIR Motion Sensor Module.