{"product_id":"kit-smart-pet-feed-dispenser-kit-with-arduino-uno-plus-stepper-motor","title":"Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor","description":"\u003ch1\u003eBuild a Constant-Tension Smart Pet Feeder with Arduino and NEMA 17 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 Intermediate\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eBuild Time:\u003c\/strong\u003e 4-5 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 15-18\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e PID Control and Load Cell Sensing\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eImagine a pet feeder that never tangles the pull rope and always delivers the right amount of food—no slack, no snarls, just a smooth, controlled unwind. This kit lets you build exactly that: a drum feeder driven by a NEMA 17 stepper motor, where a 1 kg load cell continuously measures rope tension and an Arduino runs a PID loop to keep everything running perfectly. Whether you’re deep into a Smart India Hackathon pet-care prototype or strengthening your motor control portfolio for a B.Tech ECE practical, this project bridges sensing, actuation, and real-time control in one build.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll assemble a rope‑based dispensing system around a NEMA 17 stepper motor and A4988 driver. A load cell coupled to the rope sends tension data to the Arduino via an HX711 amplifier. The microcontroller adjusts motor speed using PID logic to maintain constant tension—stopping over‑feed, preventing slack, and keeping the rope tangle‑free. A 0.96‑inch OLED screen displays real‑time tension values and dispense status, giving you a complete, self‑regulating pet‑care mechanism.\u003c\/p\u003e\n\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eImplement a PID feedback loop on Arduino to regulate motor speed from load cell signals\u003c\/li\u003e\n  \u003cli\u003eInterface a 1 kg load cell with the HX711 ADC for precise tension measurement\u003c\/li\u003e\n  \u003cli\u003eControl a NEMA 17 stepper motor using an A4988 driver for smooth, stalled‑free rotation\u003c\/li\u003e\n  \u003cli\u003eRead sensor data and display live status on a 0.96‑inch OLED, creating a responsive user interface\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\u003eNEMA 17 Stepper\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eA4988 Driver\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHX711 + 1kg Load Cell\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e0.96in OLED\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e100nF Capacitors\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12V 2A Power Supply\u003c\/td\u003e\n\u003ctd\u003e1\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\u003eMale-Male Jumper Wires\u003c\/td\u003e\n\u003ctd\u003e20\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\u003eIdeal for CBSE Class 11–12 students building working physics‑based automation models, B.Tech ECE and EEE sophomores tackling embedded control assignments, and Smart India Hackathon teams prototyping pet‑care solutions. Makers in ATL Tinkering Labs will appreciate the real‑time sensor feedback, while hobbyists from IIT, NIT, VIT, or BITS can spin this into a portfolio project that demonstrates motor tuning, PID, and IoT‑readiness—all with tangible, tangle‑free results.\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\u003eOpen the AI companion from your phone, describe where you are, and it will walk you through debugging with serial‑monitor checks, wiring validation, and code tweaks. WhatsApp support is also standing by if you need a human touch.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need to write the PID code from scratch?\u003c\/summary\u003e\u003cp\u003eNo. The kit includes a calibrated PID sketch that you can flash onto the Arduino Uno. The AI companion explains each parameter so you can tune the proportional, integral, and derivative gains to match your specific feeder setup.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I adapt this dispenser for different food types or rope thicknesses?\u003c\/summary\u003e\u003cp\u003eYes. The load cell threshold and PID setpoint are easily adjustable in the code. As long as the rope diameter fits the drum, you can recalibrate for lighter treats or heavier animal feed, and the AI companion will guide you through the changes.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I calibrate the load cell for accurate tension sensing?\u003c\/summary\u003e\u003cp\u003eThe kit ships with a calibration routine that zeros the scale and maps known weights to ADC readings. The AI companion provides a step‑by‑step calibration wizard; you’ll hang a known mass on the rope, enter the value, and the system calculates the scale factor automatically.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003ePet Care — NEMA17 drum feeds rope at constant tension measured by load cell. PID loop prevents tangles.\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\"\u003eNEMA 17 Stepper\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/a4988-stepper-motor-driver-module-with-microstepping-control\"\u003eA4988 Driver\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003eHX711 + 1kg Load Cell\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/096in-oled-display-128x64-i2cspi-for-arduino-raspberry-pi\"\u003e0.96in OLED\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\n\u003ca href=\"\/products\/capacitor-variety-pack-6-values-100nf-to-470uf-30-pieces\"\u003e100nF Caps\u003c\/a\u003e x5\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/products\/12v-2a-dc-adapter-reliable-power-supply-for-projects\"\u003e12V 2A PSU\u003c\/a\u003e\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  \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 Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor includes all components needed: Arduino Uno R3, NEMA 17 Stepper, A4988 Driver, HX711 + 1kg Load Cell, 0.96in OLED 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 Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Intermediate level makers, suitable for ages 15-18. Pet Care — NEMA17 drum feeds rope at constant tension measured by load cell. PID loop prevents tangles. Estimated build time is 4-5 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Smart Pet Feed Dispenser 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\": \"Smart Pet Feed Dispenser Kit with Arduino Uno + Stepper Motor\",\n  \"description\": \"Pet Care — NEMA17 drum feeds rope at constant tension measured by load cell. 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