PIR Sensor क्या है? कैसे काम करता है और कहाँ इस्तेमाल होता है | Complete Guide

🔥 PIR Sensor क्या है? कैसे काम करता है और कहाँ इस्तेमाल होता है | Complete Guide

📌 Introduction

PIR Sensor (Passive Infrared Sensor) एक ऐसा सेंसर है जो इंसान या जानवर की body heat (Infrared radiation) को detect करता है। यह सेंसर सबसे ज्यादा motion detection के लिए उपयोग किया जाता है।

अगर आप automatic light, security alarm या Arduino project बनाना चाहते हैं तो PIR Sensor बहुत काम का है।

⚙ PIR Sensor कैसे काम करता है?

PIR Sensor इंसान की बॉडी से निकलने वाली Infrared Rays को detect करता है।

जब कोई व्यक्ति सेंसर के सामने से गुजरता है:
➡ Sensor IR radiation में बदलाव detect करता है
➡ Output pin HIGH हो जाती है
➡ Connected device (LED, buzzer, relay) ON हो जाता है

🔌 PIR Sensor के Parts

• Pyroelectric Sensor

• Fresnel Lens (सफेद गोल कवर)

• Sensitivity Control

• Time Delay Control

• VCC, OUT, GND Pins

📊 PIR Sensor Specifications (HC-SR501 Model Example)

• Operating Voltage: 5V–20V

• Detection Range: 3 से 7 Meter

• Delay Time Adjustable

• Low Power Consumption

🛠 PIR Sensor का उपयोग कहाँ होता है?

✔ Automatic Stair Light
✔ Security Alarm System
✔ Motion Detector Light
✔ Smart Home Projects
✔ Arduino & DIY Projects

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BEST DEALS

Khyrud PIR Motion Sensor HC-SR501 | Pyroelectric Infrared Motion Detector Module | Adjustable Sensitivity & Delay | Human Motion Detection Sensor for Automation & DIY Electronics Projects

-17% ₹200 

M.R.P.: ₹240.00M.R.P.: ₹240 

 Price history

Inclusive of all taxes

Brand	Generic
Item Weight	40 Grams
Manufacturer	Imported

About this item

• PIR Motion Detection Module – Detects human movement using pyroelectric infrared sensing technology
• Adjustable Sensitivity & Time Delay – Onboard potentiometers allow precise control of detection range and output delay
• Wide Operating Voltage – Supports low-voltage operation suitable for control circuits and automation systems
• Stable Digital Output Signal – Provides reliable HIGH/LOW motion detection output
• Ideal for Automation Projects – Suitable for security alarms, automatic lighting, motion-based switching, and DIY electronics

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🔧 Simple Connection (Basic Idea)

VCC → 5V
GND → Ground
OUT → LED / Relay / Arduino Input

जब motion detect होगा → Output HIGH

Mini PIR Adjustable Motion Sensor | PIR Sensor Smart | Detection Time Delay Adjustable Infrared Induction Detector for Home, Bathroom and Kitchen (ESY-P08)

OFF -63% ₹370 

M.R.P.: ₹999.00M.R.P.: ₹999 

Inclusive of all taxes

Brand	ESYSENSE
Colour	White
PowerSource	DC AC
Item Weight	0.28 Grams
Maximum Range	6 metres

About this item

• Small and compact design: The adjustable PIR motion sensor light switch is designed to be compact, making it suitable for indoor use in various spaces.
• Adjustable sensitivity: The sensor allows you to adjust the sensitivity according to your preference, ensuring that it detects motion accurately.
• Day and night modes: This light switch offers the convenience of both day and night modes. You can choose whether you want it to activate only during the night or both day and night.
• Energy-efficient: With a maximum load capacity of 40 watts, this light switch is ideal for energy-efficient lighting options, helping you save on electricity costs.
• Easy installation: The light switch is designed for easy installation, making it accessible for both DIY enthusiasts and professionals. It comes with clear instructions and the necessary mounting hardware.
• Delay timing: 15 Sec, 45 Sec, and 5 Min.
• Working Voltage/Frequency: AC110-240V, 50/60Hz

• Angle Coverage: 110 degrees
• Rated Load 40W
• Sensing Distance: 3-5m