{"product_id":"kit-stepper-motor-clock-sweep","title":"Clock Sweep Kit with Arduino Uno + Stepper Motor","description":"\u003ch1\u003eClock Sweep Kit: Build a Smooth-Sweep Analog Clock with Arduino Uno and Stepper Motor\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 8+\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Precision motor timing with real‑time clock\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eMost DIY clocks tick loudly from a cheap quartz module. This kit flips that idea. You’ll program a stepper motor to sweep a clock hand like a luxury wall clock — silent, smooth, and accurate to the second because it reads time from a DS3231 RTC chip. By the time you power it on, you’ll have wired I2C communication, calibrated the 28BYJ-48 stepper’s 2048 steps per revolution, and turned a microcontroller into a true timekeeping device. Perfect for school science models, ATL Tinkering Lab displays, or a desk clock that actually teaches how time is measured digitally.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll assemble a circuit where the Arduino reads the exact hour, minute, and second from the DS3231 over I2C, then calculates how many stepper motor steps are needed to point the clock hand to that position. The 28BYJ-48 moves the hand in tiny 5.625° increments, so instead of jumpy ticking, you get a fluid sweep — exactly 60 discreet micro-movements per minute, creating the illusion of continuous motion. The final model can mount on a cardboard dial or acrylic face, and you’ll set the time once; the RTC’s battery backup keeps it running even after you unplug the Arduino.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eI2C protocol — talking to the DS3231 RTC and reading real‑time registers\u003c\/li\u003e\n  \u003cli\u003eStepper motor control — driving the 28BYJ-48 with a ULN2003 driver, half‑stepping for smooth motion\u003c\/li\u003e\n  \u003cli\u003eMapping time to angles — converting hours, minutes, seconds into motor step counts\u003c\/li\u003e\n  \u003cli\u003eArduino programming — writing a loop that updates hand position every second without drift\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\u003e28BYJ-48 Stepper\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eULN2003 Driver\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDS3231 RTC\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e4.7kΩ 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 is a beginner-friendly project that fits CBSE Class 11–12 physics and computer science students exploring sensor integration, as well as B.Tech ECE\/EEE first‑years learning embedded interfacing. It’s also a strong contender for ATL Tinkering Lab challenges — demonstrate a working clock that isn’t just a module but a finely controlled motor system. Hobbyists preparing for Smart India Hackathon health‑monitoring prototypes will appreciate the DS3231’s precise time‑stamping skills gained here.\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 that knows every wire connection and code line for this clock sweep project. If something still feels off, message us on WhatsApp and a human builder will jump in within hours.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to buy a clock hand and dial separately?\u003c\/summary\u003e\u003cp\u003eThe kit includes all electronics, but you’ll need a lightweight hand and a dial face of your choice — cardboard, foam board, or a 3D‑printed disc work perfectly. The stepper motor shaft fits a standard 5mm hub, so any craft hand you attach will sweep smoothly.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes the clock keep time after I power off?\u003c\/summary\u003e\u003cp\u003eYes. The DS3231 module has a tiny coin cell backup that maintains time for years. When you reconnect the 9V battery to the Arduino, the clock instantly knows the correct time — no resetting needed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan this kit be used for a school science exhibition?\u003c\/summary\u003e\u003cp\u003eAbsolutely. The smooth sweep movement is visually striking and clearly demonstrates how digital electronics can replace mechanical clocks. Pair it with a large printed dial and a clear explanation of I2C and stepper motor driver logic for an A‑grade exhibit.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003e28BYJ-48 stepper rotates a clock hand in 60 steps per minute driven by DS3231 RTC timing.\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\/nema-17-stepper-motor-18-step-045nm-bipolar\"\u003e28BYJ-48 Stepper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003eULN2003 Driver\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/ds3231-real-time-clock-module-i2c-rtc-with-battery-backup\"\u003eDS3231 RTC\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/resistor-variety-pack-100-pcs-10-values-14w-carbon-film\"\u003e4.7kΩ 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 Clock Sweep Kit with Arduino Uno + Stepper Motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Clock Sweep Kit with Arduino Uno + Stepper Motor includes all components needed: Arduino Uno R3, 28BYJ-48 Stepper, ULN2003 Driver, DS3231 RTC, 4.7kΩ 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 Clock Sweep Kit with Arduino Uno + Stepper Motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 5-15. 28BYJ-48 stepper rotates a clock hand in 60 steps per minute driven by DS3231 RTC timing. Estimated build time is 2-3 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Clock Sweep Kit with Arduino Uno + Stepper Motor online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Clock Sweep Kit with Arduino Uno + Stepper Motor 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\": \"Clock Sweep Kit with Arduino Uno + Stepper Motor\",\n  \"description\": \"28BYJ-48 stepper rotates a clock hand in 60 steps per minute driven by DS3231 RTC timing.\",\n  \"sku\": \"CDN-KIT-0043\",\n  \"brand\": {\"@type\": \"Brand\", \"name\": \"Compoden\"},\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/compoden.in\/products\/kit-stepper-motor-clock-sweep\",\n    \"priceCurrency\": \"INR\",\n    \"price\": \"1960\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": {\"@type\": \"Organization\", \"name\": \"Compoden\"}\n  },\n  \"category\": \"Robotics \u0026 Motion\"\n}\n\u003c\/script\u003e","brand":"Compoden","offers":[{"title":"Clone","offer_id":53455240298861,"sku":"CDN-KIT-0043-CL","price":2250.0,"currency_code":"INR","in_stock":true},{"title":"R3 Original","offer_id":53455240331629,"sku":"CDN-KIT-0043-R3","price":4520.0,"currency_code":"INR","in_stock":true},{"title":"R4 WiFi","offer_id":53455240364397,"sku":"CDN-KIT-0043-R4","price":3880.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/kit-stepper-motor-clock-sweep.png?v=1781944204","url":"https:\/\/compoden.com\/products\/kit-stepper-motor-clock-sweep","provider":"Compoden","version":"1.0","type":"link"}