Smart Dustbin Lid Kit with BBC Micro:bit - Build a Touch-Free Bin
Micro:bit Smart Dustbin Lid Kit: Build a Touch-Free Bin with Ultrasonic Sensor and Servo
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Bring a wave of your hand, and watch the dustbin lid swing open like magic. This Micro:bit Smart Dustbin Lid Kit lets kids build a real-world contactless bin that mimics the automatic doors they see in malls and airports. It's a perfect introduction to sensor-based automation and microcontroller programming, all with no soldering required.
What You'll Build
You'll assemble a functional model of a smart dustbin whose lid is controlled by an ultrasonic distance sensor and a micro:bit. The moment your hand enters the detection zone, the servo motor lifts the lid; after a short delay, it closes automatically. Mount it on any small box and you have a real touch-free bin for your desk.
What You'll Learn
- How ultrasonic sensors use sound waves to measure distance, and how to mount them for reliable hand detection.
- Programming the BBC micro:bit in MakeCode block editor to read sensor values and trigger a servo.
- Connecting components with crocodile clips and breadboard - no soldering, fully reusable.
- Applying automation concepts to solve a real hygiene problem, just like in smart homes.
Kit Contents
| Component | Quantity |
|---|---|
| BBC Micro:bit v2 | 1 |
| HC-SR04 Ultrasonic | 1 |
| SG90 Servo | 1 |
| Half Breadboard | 1 |
| Crocodile Clips | 6 |
| MicroUSB Cable | 1 |
| AA Battery Holder | 1 |
| AA Batteries | 2 |
| M-M Wires | 15 |
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
Designed for curious minds ages 8-10 stepping into electronics and coding for the first time. It's an ideal weekend project for parents and children to explore together, and a favourite for school STEM clubs, including junior initiatives in ATL Tinkering Labs and CBSE/ICSE hands-on learning modules. No prior experience needed - the AI companion walks through every step in simple language.
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?
The AI build companion provides real-time troubleshooting via QR code, and you can message our WhatsApp support for human help within minutes.
Do I need any tools or a computer?
You'll need a computer (Windows, Mac, or Chromebook) with a USB port and internet to load the program onto the micro:bit. No additional tools are required; all connections use crocodile clips and a breadboard.
Can I use this on an actual dustbin?
The kit builds a prototype lid mechanism that fits on a cardboard box or small container. With some creativity and mounting, you can adapt it to a real household bin.
Is the micro:bit pre-programmed?
The micro:bit comes blank so your child learns to code. The AI companion guides them step-by-step through writing the program in MakeCode, a drag-and-drop block editor.
Ultrasonic sensor detects when a hand is near and micro:bit signals a servo to open the lid 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