Smart Dustbin Using Arduino is an automated waste container that uses an ultrasonic sensor to detect motion and open the lid without physical contact. It promotes hygiene and convenience by enabling touchless garbage disposal, especially in public and home environments.
Price : 3300
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The Smart Dustbin Using Arduino is an intelligent, sensor-based waste disposal system designed to promote hygiene and reduce human contact with garbage bins. It automatically opens the lid when a person approaches and closes it after a short delay, making the dustbin touchless and user-friendly. This system is particularly useful in hospitals, offices, public spaces, and homes, where cleanliness and minimizing contact are crucial.
This project uses an ultrasonic sensor to detect the presence of a user near the bin. When someone comes within a specific range, the sensor sends a signal to the Arduino, which in turn triggers a servo motor to open the lid. After a few seconds, the lid closes automatically. The entire system is powered by a regulated power supply.
The working of the smart dustbin is based on proximity sensing. The ultrasonic sensor continuously emits sound waves and listens for their reflection. When a human hand or object is detected within a predefined range, it sends a signal to the Arduino Uno.
The Arduino processes the signal and rotates the servo motor to open the dustbin lid. After a short delay (typically 3–5 seconds), the Arduino commands the servo to close the lid automatically. This provides a completely contactless waste disposal mechanism.
System Startup:
The Arduino initializes all components and begins reading data from the ultrasonic sensor.
Object Detection:
The ultrasonic sensor sends out sound pulses and measures the time it takes for the echo to return.
Distance Calculation:
The Arduino calculates the distance based on the echo time. If the distance is below the threshold (e.g., <15 cm), it assumes a user is nearby.
Lid Operation:
The Arduino signals the servo motor to rotate and open the dustbin lid.
Delay and Closure:
After a short delay, the Arduino instructs the servo to return to its original position, closing the lid.
Looping:
This process continues in a loop to keep the system responsive.
| Component | Description |
|---|---|
| Arduino Uno | Acts as the brain of the system, processes sensor data and controls the servo motor. |
| Ultrasonic Sensor (HC-SR04) | Detects the presence of objects (e.g., hands) near the dustbin. |
| Servo Motor (SG90/MG90) | Opens and closes the dustbin lid based on Arduino signals. |
| Power Supply Module | Provides stable voltage to power all components of the system. |
