Buoyancy and Density Experiment Kit with Arduino Uno
Discover Buoyancy and Density with the Arduino Uno Experiment Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
With this kit, you'll build an electronic weighing scale that measures the apparent weight of submerged objects, calculates buoyant force, and derives density. Perfect for CBSE physics experiments and STEM showcases, this project transforms abstract Archimedes’ principle into a tangible, working instrument.
What You'll Build
You will assemble a digital measuring station using an Arduino Uno, a precision load cell, and an LCD display. Drop any object into water and instantly read its apparent weight. The system then computes the buoyant force and density, displaying results in real time. It's a complete physics lab in one compact breadboard setup.
What You'll Learn
- Interface a load cell with HX711 amplifier to the Arduino Uno for precise weight measurement.
- Calibrate a sensor using known weights to ensure accurate readings.
- Display real-time measurements on a 16x2 LCD screen using I2C communication.
- Apply Archimedes' principle to calculate buoyant force and density from apparent weight data.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| HX711 + 1kg Load Cell | x1 |
| 16x2 LCD | x1 |
| I2C Backpack | x1 |
| Tactile Button | x1 |
| 10kΩ Resistors | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| 9V Battery Snap | x1 |
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 kit is designed for CBSE Class 9-12 students performing fluid mechanics experiments, B.Tech ECE/Mechanical first-year physics labs, and ATL Tinkering Labs exploring sensor-based measurement. It's also ideal for Smart India Hackathon prototype demonstrations that require quantitative physics data.
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?
Our AI companion provides step-by-step visual guidance, and you can reach out on WhatsApp for direct help from our support team.
Can I use this kit without any coding experience?
Absolutely. All Arduino code is pre-written, thoroughly tested, and explained inside the companion guide. You just upload and go.
How do I calibrate the load cell?
The AI companion walks you through a simple calibration routine using a known weight (like a 100g mass). The process takes two minutes and ensures accurate buoyancy readings.
Can I use this for objects heavier than 1kg?
The included load cell is rated for up to 1kg, which covers most common classroom objects. For heavier objects you would need a higher-capacity cell, but the principles and code remain identical.
Load cell measures apparent weight of objects in water to calculate buoyant force and density.
What's in this kit
- Arduino Uno R3
- HX711 + 1kg Load Cell
- 16x2 LCD
- I2C Backpack
- Tactile Button
- 10kΩ 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