Automated Compost Bin Aerator Variant 16 Kit with Arduino Uno + Relay
Automated Compost Aerator Kit: Arduino Uno + CO2 Sensor for Healthier, Odor-Free 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.
Compost needs oxygen to work its magic β without it, your pile turns into a smelly, slimy mess. This advanced kit lets you automate the turning process using precise environmental data. You'll build a sensor module that monitors compost temperature and CO2 in real time, then triggers a relay-driven agitator motor to aerate the pile whenever anaerobic conditions are detected. No more manual monitoring, no more guesswork.
What You'll Build
You'll assemble a fully functional control unit around an Arduino Uno, with dual DS18B20 probes measuring the compost core temperature versus ambient air, and an MH-Z19B NDIR CO2 sensor sampling gas levels inside the bin. A 0.96-inch OLED displays live readings, while a DS3231 RTC stamps each data point. When CO2 rises above your set threshold β signaling oxygen depletion β the 5V relay switches on an external agitator motor to mix fresh air into the pile. All components are soldered onto prototype boards, ready for enclosure in a weatherproof box.
What You'll Learn
- Interface multiple digital and analog sensors (DS18B20 over OneWire, MH-Z19B over UART) with Arduino.
- Write Arduino code to read CO2 and temperature, compare against logic thresholds, and actuate a relay.
- Use a DS3231 RTC module to log sensor data with precise timestamps and schedule aeration cycles.
- Solder and assemble a permanent circuit on two prototype boards, preparing it for field deployment.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS18B20 Probe | 2 |
| MH-Z19B CO2 | 1 |
| 5V Relay Module | 1 |
| 0.96in OLED | 1 |
| DS3231 RTC | 1 |
| 1N4007 Diode | 5 |
| 4.7kΞ© Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 9V Battery Snap | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
Engineered for B.Tech ECE and EEE students building final-year projects or participating in Smart India Hackathon challenges around waste management and sustainability. Also perfect for serious DIYers from NIT, IIT, VIT, and BITS campuses who want a data-driven compost automation system. If you can solder and code basic Arduino, this kit pushes your skills into real-world embedded automation.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project β 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 inside the box to launch the AI companion, which walks you through each wiring connection and code block. If you need a human, message us on WhatsApp β response typically within an hour.
Do I need a separate motor for agitation?
The included 5V relay can switch any external motor up to 10A, 250VAC. We recommend a small 12V DC geared motor with a paddle attachment for composting bins (motor not supplied).
What CO2 level should I set for triggering the relay?
Normal air has around 400 ppm CO2. Inside an actively composting pile, readings can exceed 2000 ppm when oxygen is depleted. Start with a threshold of 1500 ppm in code, adjust based on your binβs performance.
Can I run this system outdoors?
Yes, once the circuit is soldered and enclosed in a waterproof box. The kit includes a 9V battery snap for testing; for permanent outdoor use, power via a 9V DC adapter or a solar panel with a compatible battery bank (not included).
DS18B20 + CO2 sensor detect anaerobic conditions and trigger relay agitator motor to aerate compost.
What's in this kit
Do you deliver across India?
Yes. We ship Automated Compost Bin Aerator Variant 16 Kit with Arduino Uno + Relay across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Orders ship in 1-5 days.
What payment options are available for Automated Compost Bin Aerator Variant 16 Kit with Arduino Uno + Relay?
We accept UPI, all major debit and credit cards, and Cash on Delivery (COD), available across India.
Built and shipped from Compoden, with COD and UPI available across India.
Choose your assembly option:
- Soldering Kit β 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo β 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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Shipping Information
- Prepaid Orders: βΉ75 for orders up to βΉ999, FREE shipping above βΉ999
- COD Orders: βΉ125 shipping + βΉ50 COD fee = βΉ175 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