{"product_id":"kit-blind-stick-obstacle-detector-smart-kit-with-arduino-uno-plus-ultrasonic","title":"Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic","description":"\u003ch1\u003eBuild a Life-Changing Blind Stick Obstacle Detector — with Arduino Uno \u0026amp; Ultrasonic Precision\u003c\/h1\u003e\n\n\u003cp class=\"value-summary\"\u003eEvery part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.\u003c\/p\u003e\n\n\u003cdiv class=\"specs-strip\"\u003e\n  \u003cspan\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Beginner\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 2-3 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 5-15 (young makers, parent-guided)\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Assistive tech prototyping \u0026amp; Arduino sensor integration\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eImagine a walking stick that whispers distances — how far the next step is clear, how close the wall or a stray chair leg. In 2-3 hours, this kit transforms an Arduino Uno and an HC-SR04 ultrasonic sensor into a fully functional obstacle detector that displays centimetres and inches on a crisp 16x2 LCD. Designed as a tribute to accessibility, it’s the same principle used in advanced assistive devices, simplified so a student or a curious parent can build it on a breadboard. Whether you’re participating in an ATL Tinkering Lab challenge or exploring sensor logic for a CBSE project, you’ll craft something that actually helps someone navigate with confidence.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll wire a real-time distance measurement system: the HC-SR04 sends out ultrasonic pings, the Arduino calculates the echo return time, and the I2C backpack drives the LCD to show the measurement in your choice of units. The circuit sits neatly on a 400-point breadboard and can be slipped into a cane or held as a handheld tester. At the end, you’ll have a portable, battery-powered prototype that beeps or reads aloud with future add-ons — and that very first working moment is pure confidence fuel for any young innovator.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHow ultrasonic time-of-flight sensing works and how to translate pulse width into distance\u003c\/li\u003e\n  \u003cli\u003eWiring an I2C LCD backpack to reduce microcontroller pin usage, a critical skill for multi-sensor projects\u003c\/li\u003e\n  \u003cli\u003eArduino programming logic for conditional distance thresholds and real-time display updates\u003c\/li\u003e\n  \u003cli\u003ePractical debugging of sensor readings on a breadboard before soldering a permanent version\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eArduino Uno R3\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHC-SR04\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e16x2 LCD\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eI2C Backpack\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10kΩ Resistors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e400-pt Breadboard\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eM-M Wires\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e9V Battery Snap\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Buy This Kit Instead of Sourcing Parts Separately\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFactor\u003c\/th\u003e\n\u003cth\u003eSourcing Separately\u003c\/th\u003e\n\u003cth\u003eCompoden Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompatibility checks\u003c\/td\u003e\n\u003ctd\u003eYou verify every part\u003c\/td\u003e\n\u003ctd\u003ePre-tested as a system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBuild support\u003c\/td\u003e\n\u003ctd\u003eForums and scattered tutorials\u003c\/td\u003e\n\u003ctd\u003eAI companion trained on this exact project\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTime to first working build\u003c\/td\u003e\n\u003ctd\u003eDays of debugging\u003c\/td\u003e\n\u003ctd\u003eHours, with step-by-step guidance\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eShipping coordination\u003c\/td\u003e\n\u003ctd\u003eMultiple sellers, multiple delays\u003c\/td\u003e\n\u003ctd\u003eOne shipment from Bengaluru in 3-5 days\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eThis kit meets the maker wherever they are. For a CBSE Class 11-12 student exploring physics practicals or an ATL innovation lab challenge, it’s a tangible entry into sensor-based design. B.Tech ECE\/EEE undergraduates use it to prototype a mini project on embedded assistive systems during Smart India Hackathon season. Even a hobbyist parent building alongside a curious 10-year-old finds the instructions intuitive. If you’ve ever wished to create something that blends technology with empathy, this kit offers the perfect first step.\u003c\/p\u003e\n\n\u003ch2\u003eBuilt and Backed by Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eScan the QR code on the box to chat with the AI companion, trained on the exact circuit and code for this kit. You can also reach our team on WhatsApp — we reply within hours, not days.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan the LCD display distance in both cm and inches?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The pre-written example code includes a simple toggle or dual-line display. You'll learn to modify the Arduino sketch to switch units with a button or show both simultaneously.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this kit safe for a child aged 5-7 to build alone?\u003c\/summary\u003e\u003cp\u003eWe recommend adult supervision for children under 10, especially when connecting the 9V battery. The circuit itself is low voltage, but building together is half the fun — and learning.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I test the sensor without fixing it into a stick?\u003c\/summary\u003e\u003cp\u003eYes. The breadboard setup is fully functional as a handheld distance meter. Mounting it to a stick or 3D-printed case is a natural next step after you confirm the readings are stable.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eAccessibility — HC-SR04 measures and displays distance in cm and inches on LCD.\u003c\/p\u003e\n  \u003ch4\u003eWhat's in this kit\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/uno-r3-ch340g-atmega328p-board-arduino-compatible\"\u003eArduino Uno R3\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/hc-sr04-ultrasonic-sensor-module-5v-distance-2cm-400cm\"\u003eHC-SR04\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/16x2-lcd-display-module-16x2-character-blue-backlight\"\u003e16x2 LCD\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/i2c-backpack-pcf8574-i2c-adapter-for-lcd-displays\"\u003eI2C Backpack\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e10kΩ Resistors\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/breadboard-standard-bundle-830400-tie-points-for-prototyping\"\u003e400-pt Breadboard\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eM-M Wires x20\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/9v-battery-snap-connector-with-15cm-wires-compoden\"\u003e9V Battery Snap\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is included in the Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic includes all components needed: Arduino Uno R3, HC-SR04, 16, I2C Backpack, 10kΩ Resistors and more. Everything is pre-tested for compatibility and shipped from Bengaluru, India.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What skill level is required for the Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 5-15. Accessibility — HC-SR04 measures and displays distance in cm and inches on LCD. Estimated build time is 2-3 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. Ships from Bengaluru in 1-5 business days across India.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Blind Stick Obstacle Detector Smart Kit with Arduino Uno + Ultrasonic\",\n  \"description\": \"Accessibility — HC-SR04 measures and displays distance in cm and inches on LCD.\",\n  \"sku\": \"CDN-KIT-3576\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-blind-stick-obstacle-detector-smart-kit-with-arduino-uno-plus-ultrasonic\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"1055\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Beginner Arduino Projects\"\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Clone","offer_id":53463891116397,"sku":"CDN-KIT-3576-CL","price":1180.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original","offer_id":53463891149165,"sku":"CDN-KIT-3576-R3","price":3450.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi","offer_id":53463891181933,"sku":"CDN-KIT-3576-R4","price":2810.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-blind-stick-obstacle-detector-smart-kit-with-arduino-uno-plus-ultrasonic.png?v=1781949419","url":"https:\/\/compoden.com\/products\/kit-blind-stick-obstacle-detector-smart-kit-with-arduino-uno-plus-ultrasonic","provider":"Compoden","version":"1.0","type":"link"}