Smart Trash Can Auto-Open Smart Kit with Arduino Uno + Ultrasonic
Smart Trash Can Auto-Open Sensor Kit — Arduino Uno + Ultrasonic Distance Meter
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine a bin that senses your hand and opens its lid all by itself. That magic starts with measuring distance. This kit lets you build the exact sensor brain behind touchless trash cans — a device that uses an HC-SR04 ultrasonic module to measure how far your hand is and displays it live on a 16x2 LCD in both centimeters and inches. Perfect for curious young makers and school projects.
What You'll Build
Your child will assemble a working distance measurement station on a breadboard. When a hand moves near the sensor, the LCD instantly updates with the distance — just like the trigger system in modern smart bins. It’s a concrete, satisfying project that demonstrates how real-world automation begins with a sensor. The same circuit can later drive a servo to physically open a lid.
What You'll Learn
- How ultrasonic waves bounce off objects to measure distance accurately
- Programming an Arduino Uno to read sensor values and take intelligent decisions
- Displaying live data on a 16x2 LCD using an I2C backpack — cleanly and with fewer wires
- Converting measurements between centimeters and inches inside code
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| HC-SR04 Ultrasonic Sensor | 1 |
| 16x2 LCD Display | 1 |
| I2C Backpack | 1 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Jumper 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
Young inventors in CBSE Classes 5–10, ATL Tinkering Lab students, and B.Tech ECE first-years who want a quick hands-on project. Home-schooling parents love the clear, guided setup. Ideal for science exhibitions, Smart India Hackathon junior ideas, or simply sparking a love for electronics. No prior soldering or coding needed — everything plugs into the breadboard.
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. The AI companion will walk you through every connection and error. You can also send a photo on WhatsApp and get a human reply within a few hours.
Does this kit include a motor to open a real bin lid?
No, this kit focuses on the sensor and display logic. Once your child masters distance measurement, you can add a servo motor (available separately) to physically lift a lid — the circuit is exactly the same.
Can we power the project without a 9V battery?
Yes, the Arduino Uno can be powered via any standard USB phone charger or power bank. The included 9V battery snap gives portability, but USB works perfectly during learning.
Is this suitable for a CBSE school science exhibition?
Absolutely. The project cleanly demonstrates real-world automation, distance sensing, and LCD output — all topics in the curriculum. Students can present it as a prototype of a touchless dustbin used in smart cities.
Touchless Bin — HC-SR04 measures and displays distance in cm and inches on LCD.
What's in this kit
- Arduino Uno R3
- HC-SR04
- 16x2 LCD
- I2C Backpack
- 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