Compost Heap Temperature Monitor Variant 11 Kit with Arduino Uno
Compost Heap Temperature Monitor Kit with Arduino Uno: Real-Time LCD & LED Alerts for Perfect Compost
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn 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.
What You'll Build
You’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.
What You'll Learn
- Wiring a waterproof DS18B20 sensor and retrieving digital temperature data with the OneWire library
- Displaying real‑time sensor values on a 16x2 LCD using an I2C backpack for cleaner wiring
- Writing conditional Arduino code to drive LED indicators based on temperature thresholds
- Applying sensors and microcontrollers to precision agriculture and understanding the science of hot composting
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS18B20 Waterproof | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 4.7kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 15 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Young 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.
Built and Backed by Compoden
Every 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.
What if I get stuck during the build?
Scan 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.
How do I know if my compost is at the ideal temperature?
The 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.
Can this kit be left outdoors in the rain?
The 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.
How long does the 9V battery last, and can I use a solar panel?
A 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.
DS18B20 probe in compost pile shows temperature trend on LCD. Ideal range indicator LEDs.
What's in this kit
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items