{"product_id":"hc-sr505-mini-pir-motion-sensor-module-3-15v-3m-range","title":"HC-SR505 Mini PIR Motion Sensor Module | 3-15V, 3m Range","description":"\u003ch1\u003eHC-SR505 Mini Infrared PIR Motion Sensor Module – 3-15V, 3m Detection\u003c\/h1\u003e\u003cp\u003eThe HC-SR505 is a compact pyroelectric infrared (PIR) motion sensor module designed for human detection. It outputs a TTL high signal when movement is detected within its 3-meter, 100-degree conical field of view. With a wide operating voltage range and ultra-low standby current, it's ideal for battery-powered security, automation, and IoT projects.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3–15V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatic Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50µA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003eUp to 3 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Angle\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;100° cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eTTL high (3.3V) when motion detected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay Time\u003c\/td\u003e\n\u003ctd\u003eFixed 8 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-pir-motion-night-light\"\u003eMotion-activated night light\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eIntruder alarm system\u003c\/li\u003e\n\u003cli\u003eAutomatic door or gate opener\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-room-occupancy-counter\"\u003eRoom occupancy counter for energy saving\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThe HC-SR505 works with any microcontroller or single-board computer that accepts 3.3V logic, including Arduino Uno, ESP32, ESP8266, and Raspberry Pi. Even when powered by 5V, its output remains a safe 3.3V level, so no level shifting is required for 3.3V devices. It can drive a digital input pin directly.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eConnect VCC to a 3–15V supply, GND to common ground, and OUT to any digital I\/O pin. For stable operation, add a 10µF electrolytic capacitor across VCC and GND near the sensor. The output goes high for about 8 seconds upon detecting motion; no external pull-up is needed.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, connect VCC to 5V (or 3.3V), GND to GND, and OUT to any digital pin. The output is 3.3V logic and safe for Arduino inputs.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan it detect motion through walls or glass?\u003c\/summary\u003e\u003cp\u003eNo, PIR sensors require direct line-of-sight infrared radiation; they cannot detect through solid barriers. For hidden installations, use a sensor with an external lens or mount it behind an IR-transparent window.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat's the difference between HC-SR505 and HC-SR501?\u003c\/summary\u003e\u003cp\u003eThe HC-SR505 is smaller, has a fixed delay of about 8 seconds, and no sensitivity trimmer. The HC-SR501 is larger, adjustable via two potentiometers, and often used for more flexible applications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445015142765,"sku":"CDN-0685","price":75.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_f6dff438-9478-44ea-be0e-86689150bba9.jpg?v=1781512813","url":"https:\/\/compoden.com\/products\/hc-sr505-mini-pir-motion-sensor-module-3-15v-3m-range","provider":"Compoden","version":"1.0","type":"link"}