Smart Dustbin using Arduino
The Smart Dustbin project is an innovative solution aimed at addressing waste management challenges, particularly in urban environments. By using Arduino and a combination of sensors, including an ultrasonic sensor and an IR sensor, the dustbin automatically opens its lid when it detects the presence of an object, such as a hand or foot. This hands-free operation enhances convenience and promotes hygiene, aligning with initiatives like the “Swaach Bharat Mission” focused on cleanliness and sanitation.
The key components required for building the Smart Dustbin include:
- Arduino Nano
- Two servo motors (MG996R)
- HC-SR04 Ultrasonic Sensor
- IR Sensor
- Two LEDs for visual feedback
- 7.4V Li-ion battery
- LM2596 DC-DC buck converter
- DC socket and switch
- Jumper wires
- Breadboard or PCB
The circuit diagram outlines the connections between these components, with careful attention paid to power management and signal routing. The Arduino Nano serves as the central control unit, receiving inputs from the sensors and driving the servo motors to open and close the lid.
In terms of design, CAD software like Onshape was used to create custom lid mechanisms and sensor holders, showcasing the versatility of 3D design tools. The physical construction of the dustbin involves securing all components to a sturdy frame using screws, nuts, and hot glue to ensure stability and durability.
The Arduino code for the Smart Dustbin utilizes sensor inputs to determine when to open and close the lid. When an object is detected within range of either the ultrasonic sensor or the IR sensor, the lid opens smoothly, accompanied by visual feedback from the LEDs. After a brief delay, the lid closes automatically to maintain cleanliness and containment of waste.
Overall, the Smart Dustbin project demonstrates how technology can be leveraged to address real-world challenges, promoting cleanliness, convenience, and hygiene in waste management practices.
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