{"product_id":"hc-sr04-ultrasonic-sensor-module-5v-distance-2cm-400cm","title":"HC-SR04 Ultrasonic Sensor Module 5V - Distance 2cm-400cm","description":"\u003ch1\u003eHC-SR04 Ultrasonic Distance Sensor Module – 2cm to 400cm Range\u003c\/h1\u003e\n\n\u003cp\u003eThe HC-SR04 ultrasonic sensor module measures distance by emitting 40kHz sound pulses and receiving the echo. It detects objects from 2cm up to 400cm away with \u0026lt;15° measuring angle, making it suitable for proximity sensing and distance measurement in robotics, automation, and DIY projects. The compact module operates at 5V and uses only two GPIO pins for trigger and echo, ensuring straightforward microcontroller integration.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\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\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Current\u003c\/td\u003e\n\u003ctd\u003e15mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e40kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e2cm – 400cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasuring Angle\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;15°\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e45mm × 20mm × 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSmart distance alert system for parking assistance\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-smart-hand-sanitizer-dispenser-kit-with-arduino-nano-plus-servo\"\u003eAutomatic hand sanitizer dispenser\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-water-level-indicator\"\u003eWater level indicator for overhead tanks\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/arduino-obstacle-avoidance-robot-kit-build-and-code-autonomous-car\"\u003eDIY robot obstacle avoidance system\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with Arduino (Uno, Nano, Mega), Raspberry Pi (requires level shifter for 3.3V logic on Echo pin), ESP32, and any microcontroller with GPIO pins. The module needs a 5V supply; the Echo pin outputs a 5V signal, so use a voltage divider when connecting to 3.3V boards.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V, GND to ground, Trig to a digital output pin, and Echo to a digital input pin. For stable readings, add a 10µF capacitor across VCC and GND. When using with 3.3V microcontrollers, attach a voltage divider (10kΩ \/ 20kΩ) on the Echo line to step down to safe levels.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\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\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Raspberry Pi?\u003c\/summary\u003e\u003cp\u003eYes, but the Echo pin outputs 5V, so a voltage divider (10k and 20k resistors) is needed to reduce it to 3.3V for safe connection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the maximum range outdoors?\u003c\/summary\u003e\u003cp\u003eThe rated 400cm range is under ideal indoor conditions; outdoor performance may be reduced due to wind, temperature, and acoustic noise.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it come with connecting wires?\u003c\/summary\u003e\u003cp\u003eThe module is sold standalone. Standard 2.54mm pitch header pins can be used for connections; some packages may include header pins.\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":53444961304941,"sku":"CDN-0404","price":85.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_010e94a3-b5ca-4952-80de-debaf13c6a9e.jpg?v=1781512536","url":"https:\/\/compoden.com\/products\/hc-sr04-ultrasonic-sensor-module-5v-distance-2cm-400cm","provider":"Compoden","version":"1.0","type":"link"}