{"product_id":"hcsr501-pir-motion-sensor-passive-infrared-sensor","title":"HCSR501 PIR Motion Sensor (Passive Infrared Sensor)","description":"\u003cmeta name=\"description\" content=\"Buy HCSR501 PIR Motion Sensor Passive Infrared Sensor online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eHC-SR501 PIR Motion Sensor (Passive Infrared Sensor)\u003c\/h1\u003e\n\u003cp\u003eDetect human movement reliably with the HC-SR501 PIR Motion Sensor - the industry-standard passive infrared sensor module used in security systems, automatic lighting, and IoT projects. Available at The Tech Depot, Bengaluru with fast shipping and full technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003ePassive Infrared (PIR) Motion Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHC-SR501\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e4.5V - 20V DC (typically 5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V (HIGH) \/ 0V (LOW) - TTL compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003eUp to 7 meters (adjustable via potentiometer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Angle\u003c\/td\u003e\n\u003ctd\u003eApproximately 120 degrees cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay Time\u003c\/td\u003e\n\u003ctd\u003e0.3 seconds - 5 minutes (adjustable via potentiometer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Modes\u003c\/td\u003e\n\u003ctd\u003eSingle Trigger (L) \/ Repeatable Trigger (H) - jumper selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 50 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003eUp to 10 mA (sink\/source)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing Element\u003c\/td\u003e\n\u003ctd\u003eDual-element pyroelectric infrared sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFresnel Lens\u003c\/td\u003e\n\u003ctd\u003eWhite dome lens for wide-angle IR focusing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Dimensions\u003c\/td\u003e\n\u003ctd\u003e32mm x 24mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-15 degreesC to +70 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarm-Up Time\u003c\/td\u003e\n\u003ctd\u003e~60 seconds after power-on for stabilization\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e3-pin header (VCC, OUT, GND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eArduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, and all 3.3V\/5V microcontrollers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive Infrared Detection:\u003c\/strong\u003e Senses body heat (infrared radiation) emitted by humans and animals - no active signal emission, completely safe and invisible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Sensitivity:\u003c\/strong\u003e Onboard potentiometer lets you fine-tune detection range from ~3m to ~7m to suit your environment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Delay Time:\u003c\/strong\u003e Second potentiometer controls how long the output stays HIGH after detection (0.3s to 5 minutes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Trigger Modes:\u003c\/strong\u003e Jumper selects between single trigger (output goes LOW after delay, then re-arms) or repeatable trigger (output stays HIGH as long as motion continues)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Power Consumption:\u003c\/strong\u003e Draws less than 50uA in standby - ideal for battery-powered and always-on applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operates from 4.5V to 20V, making it flexible for various power supply scenarios\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V Digital Output:\u003c\/strong\u003e Clean TTL-level output directly readable by Arduino, ESP32, Raspberry Pi, and other microcontrollers without level shifting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresnel Lens Included:\u003c\/strong\u003e White dome lens focuses infrared energy onto the pyroelectric sensor for maximum sensitivity and wide coverage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBISS0001 Controller IC:\u003c\/strong\u003e Onboard signal processing chip handles amplification, filtering, and timing - delivers clean, debounced digital output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Small PCB with standard 3-pin header for easy breadboard and project integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow the HC-SR501 Works\u003c\/h2\u003e\n\u003cp\u003eThe HC-SR501 uses a dual-element pyroelectric sensor beneath a Fresnel lens dome. All objects with temperature above absolute zero emit infrared radiation. When a warm body (like a person) moves across the sensor's field of view, the two pyroelectric elements detect a differential change in infrared energy. The onboard BISS0001 IC amplifies this signal, filters out noise, and outputs a clean digital HIGH (3.3V) pulse on the OUT pin. When no motion is detected, the output returns to LOW (0V) after the adjustable delay period.\u003c\/p\u003e\n\n\u003ch2\u003eOnboard Adjustments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity Potentiometer (left):\u003c\/strong\u003e Rotate clockwise to increase detection distance (up to ~7m), counter-clockwise to decrease (~3m)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime Delay Potentiometer (right):\u003c\/strong\u003e Rotate clockwise to increase output hold time (up to ~5 min), counter-clockwise to decrease (~0.3s)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrigger Mode Jumper:\u003c\/strong\u003e Set to H position for repeatable trigger (recommended for most applications) or L position for single trigger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePin Configuration\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eLabel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy HCSR501 PIR Motion Sensor (Passive Infrared Sensor) Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eHCSR501 PIR Motion Sensor (Passive Infrared Sensor)\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eHCSR501 PIR Motion Sensor (Passive Infrared Sensor)\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eHCSR501 PIR Motion Sensor (Passive Infrared Sensor)\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746560028929,"sku":"TTD-17817","price":65.72,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/f07ec42b2a0ca0871d150a10f2a22ad2.png?v=1778107605","url":"https:\/\/techdepot.in\/products\/hcsr501-pir-motion-sensor-passive-infrared-sensor","provider":"Tech Depot India","version":"1.0","type":"link"}