Aquaculture Dissolved Oxygen Alert Variant 20 Kit with Arduino Uno + Sensor
Aquaculture Dissolved Oxygen Alert Variant 20 Kit – Automate Aeration with Arduino Uno & DO Sensor
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Sudden drops in dissolved oxygen can wipe out a fish tank or pond within hours. This kit lets you build a galvanic probe-based monitor that reads real-time DO levels, displays them on a crisp OLED screen, and automatically triggers an aeration relay the moment oxygen falls below a safe threshold — all driven by an Arduino Uno. Whether you run a small hatchery or are prototyping for a Smart India Hackathon project, you walk away with a working automated alert system and the skills to customize it for larger setups.
What You'll Build
You assemble a compact monitoring unit where an analog DO sensor continuously measures oxygen concentration in water. The Arduino compares the reading against a preset threshold; if the level drops, it activates a relay to switch on an air pump or aerator, simultaneously sounding a buzzer for immediate alert. The 0.96-inch OLED shows live DO values and system status, giving you both visual and audible warnings at the tank side.
What You'll Learn
- Interfacing an analog dissolved oxygen sensor with Arduino and reading millivolt signals
- Writing threshold-based control logic to trigger a 5V relay for external appliances
- Driving an I2C OLED display to show real-time sensor data and alarm state
- Incorporating flyback diodes and decoupling capacitors for circuit protection in a mixed-voltage breadboard layout
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Analog DO Sensor Module | 1 |
| 5V Relay Module | 1 |
| Active Buzzer | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 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
This intermediate kit is built for CBSE Class 11-12 students diving into agricultural automation, B.Tech ECE/EEE candidates crafting a working smart farming prototype, and teams preparing for the Smart India Hackathon or ATL Tinkering Lab challenges. It also fits aquaculture entrepreneurs who want to test automated aeration logic on a breadboard before investing in industrial controllers.
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 the AI companion trained on this exact project. It gives step-by-step guidance, and our team is also available on WhatsApp for any doubts.
Can this kit be used in a real fish pond?
Yes, the relay output can drive an aerator pump, but the included galvanic probe is best for small tanks or prototyping. For larger ponds, you can swap the sensor and apply the same logic.
How do I calibrate the dissolved oxygen sensor?
The AI companion walks you through a two-point calibration using saturated air and zero-oxygen solution. The OLED will display the adjusted readings once you upload the calibration sketch.
What is the role of the 1N4007 diodes in this kit?
They act as flyback protection across the relay coil, preventing voltage spikes from damaging the Arduino when the relay switches inductive loads like pumps or aerators.
Galvanic DO probe signals low dissolved oxygen level in fish tank and triggers aeration relay automatically.
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