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range-finder-3f952d-en.md

Ultrasonic range finders are fun little modules that measure distance. You can use them to find the distance to an object, or to detect when something is near the sensor like a motion detector. They’re ideal for projects involving navigation, object avoidance, and home security. Because they use sound to measure distance, they work just as well in the dark as they do in the light.

EXPANDED TECHNICAL DETAILS

Digital Spatial Mapping Tool

A portable, high-accuracy distance measurement device that displays real-time ranging data on a handheld unit.

  • Acoustic Pulse Analysis: Uses a precision HC-SR04 or US-015 ultrasonic sensor. The Arduino manages the 10µs trigger pulse and captures the echo-time with 1-microsecond resolution, yielding an accuracy of ±2mm.
  • I2C OLED Dashboard: Renders the distance in Centimeters, Inches, and Millimeters on a small 0.96" display. The firmware includes a "Hold" button to lock the current measurement on the screen.

Performance

  • Signal Averaging Matrix: Implements a 10-point moving average filter; the Arduino discards the highest and lowest readings to ensure the displayed value is stable even in noisy environments.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Range Finder"
description: "Setting Up Ultrasonic Sensor on Arduino"
author: "Fouad_Roboticist"
category: ""
tags:
  - "embedded"
  - "home automation"
  - "smart appliances"
  - "data collection"
  - "internet of things"
views: 5107
likes: 0
price: 299
difficulty: "Easy"
components:
  - "1x Arduino UNO"
  - "1x Breadboard, Plastic"
  - "1x Ultrasonic Sensor - HC-SR04 (Generic)"
  - "1x Premium Male/Male Jumper Wires, 40 x 3\" (75mm)"
tools: []
apps:
  - "1x Arduino IDE"
downloadableFiles:
  - "https://projects.arduinocontent.cc/74800ee3-803f-4c46-93e9-2f949ba5b62a.ino"
  - "https://projects.arduinocontent.cc/74800ee3-803f-4c46-93e9-2f949ba5b62a.ino"
documentationLinks: []
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seoDescription: "Learn how to set up an Ultrasonic Sensor on Arduino for distance measurement. Complete step-by-step guide for your Range Finder project."
videoLinks: []
heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/range-finder-3f952d_cover.jpg"
lang: "en"