Water Tank Level Monitor Lab Kit with Arduino Uno + Ultrasonic
Water Tank Level Monitor Lab Kit — Arduino Uno + Ultrasonic Sensor with Live OLED Tank Diagram
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Water tank monitoring is a daily headache in many Indian homes — you climb up to check the level, or the motor runs dry. This kit turns that problem into a learn-by-building project. Using an HC-SR04 ultrasonic sensor and Arduino Uno, you’ll measure the distance to the water surface and instantly see it as a filled tank diagram on an OLED screen, complete with percentage readout and color-coded safety zones.
What You'll Build
You’ll create a working tank level monitor that can be mounted above any overhead water tank. The sensor fires ultrasonic pulses downward, measures echo time, and the Arduino translates that into a live bar graph on the 0.96-inch OLED display — green for full, yellow for half, and red when the level drops critically low. You’ll walk away with a functional prototype you can connect to a buzzer or relay for automatic pump control later.
What You'll Learn
- How ultrasonic distance sensing works with the HC-SR04 module
- Mapping sensor data to visual output on an OLED screen using Arduino libraries
- Writing logic for percent calculation and color-coded zones
- Breadboarding and basic circuit wiring for a complete standalone gadget
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-SR04 | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 5 |
| 4.7kΩ Resistors | 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
Perfect for CBSE Class 11–12 students exploring sensor-based projects, ATL Tinkering Lab participants, and B.Tech ECE/EEE first-years looking for a hands-on IoT prototype. Even a 10-year-old with supervision can complete the build in a single afternoon and see real-time water level monitoring at home.
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 in the box to launch the AI companion, which shows circuit diagrams, code explanations, and live debugging steps. You can also message us on WhatsApp for direct help.
Can I use this for a real overhead tank at home?
Yes, you can mount the sensor above the tank opening and run the Arduino on a battery pack. The system will display level on the OLED. To make it permanent, you can later add a longer cable and a weatherproof enclosure.
What if the sensor gets splashed with water?
The HC-SR04 module should be protected from direct water contact. In this kit, you’ll build a simple cardboard or plastic housing to shield it. For a real installation, you can add a hydrophobic mesh. The kit teaches the core sensing, and you can upgrade later.
Can I add an alarm when the tank is low?
Absolutely. The code you’ll write can easily trigger a buzzer (not included in this kit) when the percentage is below a certain threshold. The AI companion includes notes on how to integrate a buzzer or an LED indicator.
Tank Monitoring — HC-SR04 distance maps to a filled tank diagram on OLED showing percent full with colour zones.
What's in this kit
- Arduino Uno R3
- HC-SR04
- 0.96in OLED
- 10kΩ Resistors x5
- 4.7kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
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