{"product_id":"kit-compost-heap-temperature-monitor-v11","title":"Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno","description":"\u003ch1\u003eCompost Heap Temperature Monitor Kit with Arduino Uno: Real-Time LCD \u0026amp; LED Alerts for Perfect Compost\u003c\/h1\u003e\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\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 1-2 hrs\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e 5-15\u003c\/span\u003e\n  \u003cspan\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e Building a temperature sensor interface with Arduino and LCD output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003eTurn a pile of organic waste into a data‑driven science project. With this kit, you’ll bury a waterproof DS18B20 probe inside your compost heap and watch as live temperature readings scroll across a 16x2 LCD. Green indicator LEDs glow the moment your pile hits the 55‑65°C zone where beneficial thermophilic bacteria work fastest. No guesswork. No wasted weeks. Just clean, real‑time feedback that turns composting into a living lesson in biology, chemistry, and microcontroller engineering.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Build\u003c\/h2\u003e\n\u003cp\u003eYou’ll wire together an Arduino Uno, a DS18B20 digital thermometer, an I2C‑backed LCD, and a set of LED indicators to create a portable monitoring station. Once assembled, the system reads the compost’s internal temperature every second and displays the value on the screen. When the temperature is optimal for hot composting, the LEDs light up green. When it’s too cold or dangerously hot, the LEDs go dark—an instant, visual cue to turn the pile or adjust moisture. The entire circuit fits on a breadboard and runs off a 9V battery, so you can take it out to the garden or set it up on a classroom desk.\u003c\/p\u003e\n\u003ch2\u003eWhat You'll Learn\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWiring a waterproof DS18B20 sensor and retrieving digital temperature data with the OneWire library\u003c\/li\u003e\n  \u003cli\u003eDisplaying real‑time sensor values on a 16x2 LCD using an I2C backpack for cleaner wiring\u003c\/li\u003e\n  \u003cli\u003eWriting conditional Arduino code to drive LED indicators based on temperature thresholds\u003c\/li\u003e\n  \u003cli\u003eApplying sensors and microcontrollers to precision agriculture and understanding the science of hot composting\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eDS18B20 Waterproof\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\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\u003e15\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\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\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eYoung inventors (5–15) who want to understand what’s happening inside a compost heap, CBSE school students building agriculture‑themed science exhibitions, and B.Tech ECE\/EEE undergraduates prototyping IoT sensors for Smart India Hackathon or college labs. Even ATL Tinkering Lab coordinators will find this an ideal starter project that connects electronics with sustainability and biology—no soldering required.\u003c\/p\u003e\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\u003cdetails\u003e\u003csummary\u003eWhat if I get stuck during the build?\u003c\/summary\u003e\u003cp\u003eScan the QR code on the box to open your AI companion, which offers step‑by‑step debug help for this specific kit. You can also send a WhatsApp message and our team will guide you through the issue within hours.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my compost is at the ideal temperature?\u003c\/summary\u003e\u003cp\u003eThe DS18B20 probe reads the core temperature and the LCD displays it live. Three green LEDs on the breadboard light up only when the temperature falls within the 55‑65°C range—the sweet spot for thermophilic microbes that break down organic matter fastest.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan this kit be left outdoors in the rain?\u003c\/summary\u003e\u003cp\u003eThe DS18B20 probe is fully waterproof and can stay buried deep inside the pile. However, the Arduino, breadboard, LCD, and 9V battery snap are not weatherproof. Place the electronics in a sealed plastic project box or keep them indoors, running only the probe cable outside.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long does the 9V battery last, and can I use a solar panel?\u003c\/summary\u003e\u003cp\u003eA fresh 9V alkaline battery powers the setup for roughly 4‑6 hours of continuous monitoring. For longer outdoor experiments, swap to a 9V DC wall adapter or use a small 12V solar panel with a charge controller and rechargeable battery. The kit is designed for educational sessions and short‑term logging, not permanent installation.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdiv class=\"kit-description\"\u003e\n  \u003cp\u003eDS18B20 probe in compost pile shows temperature trend on LCD. Ideal range indicator LEDs.\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\/ds18b20-waterproof-temperature-sensor-probe-55c-to-125c\"\u003eDS18B20 Waterproof\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\"\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 x15\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 Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno includes all components needed: Arduino Uno R3, DS18B20 Waterproof, 16, I2C Backpack, 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 Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This kit is designed for Beginner level makers, suitable for ages 5-15. DS18B20 probe in compost pile shows temperature trend on LCD. Ideal range indicator LEDs. Estimated build time is 1-2 hrs.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I buy the Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno online in India?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, the Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno is available online at Compoden (compoden.in), India's AI-powered electronics and robotics store. 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