{"product_id":"us-100-ultrasonic-distance-sensor-module-temp-comp-2cm-450cm","title":"US-100 Ultrasonic Distance Sensor Module – Temp Comp, 2cm-450cm","description":"\u003ch1\u003eUS-100 Ultrasonic Distance Sensor Module with Temperature Compensation — 2cm to 450cm Range\u003c\/h1\u003e\n\n\u003cp\u003eThe US-100 is an ultrasonic distance measuring module that determines distance by emitting 40 kHz sound waves and measuring their reflection time. It includes built-in temperature compensation, ensuring consistent accuracy even when ambient temperature changes. This module supports two output modes: UART for direct serial communication and pulse width for compatibility with existing HC-SR04 code.\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\u003e\u0026lt;15mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e2cm – 450cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eUltrasonic Frequency\u003c\/td\u003e\n\u003ctd\u003e40kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Modes\u003c\/td\u003e\n\u003ctd\u003eUART TTL \/ Pulse Width\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\u003e\u003ca href=\"\/products\/arduino-obstacle-avoidance-robot-kit-build-and-code-autonomous-car\"\u003eObstacle avoidance robot with precise distance detection\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-water-tank-level-monitor-kit-v2\"\u003eTank water level monitor with data logging\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eProximity alarm for security systems\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-smart-hand-sanitizer-dispenser-kit-with-arduino-nano-plus-servo\"\u003eAutomatic hand sanitizer dispenser triggering\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with 5V logic microcontrollers like Arduino Uno, Nano, and Mega. Can be used with 3.3V boards such as ESP8266 and ESP32 through level shifting. Also interfaces with Raspberry Pi GPIO using a voltage divider. Compatible with most development boards that have UART or digital I\/O pins.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eIn UART mode, connect VCC to 5V, GND to GND, Trig\/TX to MCU RX, and Echo\/RX to MCU TX. For pulse width mode, install the jumper on the back of the module, then connect Trig to a digital output pin and Echo to a digital input pin. Ensure the power supply is 5V—the module does not operate reliably at 3.3V.\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 Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the US-100 works with Arduino boards using either UART or digital I\/O. Use the NewPing library for easy integration.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow does temperature compensation improve accuracy?\u003c\/summary\u003e\u003cp\u003eThe built-in sensor adjusts the speed of sound calculation based on ambient temperature, reducing errors caused by temperature fluctuations.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between UART and pulse width mode?\u003c\/summary\u003e\u003cp\u003eUART mode provides direct distance data in millimeters via serial, while pulse width mode outputs a pulse whose duration corresponds to distance, similar to the HC-SR04.\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":53445015470445,"sku":"CDN-0687","price":240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_3fb44062-14c1-4d1d-9db3-d5c4cbc29ab8.jpg?v=1781512815","url":"https:\/\/compoden.com\/products\/us-100-ultrasonic-distance-sensor-module-temp-comp-2cm-450cm","provider":"Compoden","version":"1.0","type":"link"}