To successfully complete this project, you will need the following hardware and skills:
A. Hardware Requirements
Microcontroller: Arduino Uno (or Nano).
Sensors: HC-SR04 Ultrasonic Sensor.
Actuators: SG90 or MG90S Servo Motor.
Power: 9V Battery with DC Jack or a USB Power Bank.
Connectivity: Jumper wires (M-to-M and M-to-F).
Structural: A small dustbin, cardboard/plastic for the lid lever, and double-sided tape.
B. Software & Skills
Software: Arduino IDE installed on a PC/Laptop.
Knowledge: Basic understanding of C++ (variables and If/Else statements).
Tools: A hot glue gun or tape for mounting components.
This course introduces students to the world of automation and touchless technology. In this project-based module, you will design and build a Smart Dustbin that uses ultrasonic waves to detect human presence. When a user approaches, the system automatically triggers a servo motor to lift the lid, providing a hygienic, "hands-free" waste disposal solution.
You will learn how to interface the HC-SR04 Ultrasonic Sensor and the SG90 Servo Motor with an Arduino Uno, mastering the logic of "Distance-based Triggering."
Upon completion of this module, students will be able to:
Understand Ultrasonic Physics: Explain how sound waves (sonar) are used to calculate the distance of an object.
Master PWM Signal Control: Effectively control a servo motor’s position using Pulse Width Modulation (PWM) from an Arduino.
Logic Development: Write a program that translates physical distance into mechanical movement.
System Integration: Assemble multiple electronic components into a functional, real-world prototype.
Troubleshooting: Identify and fix common issues such as sensor "jitter," power fluctuations, and mechanical linkage problems.
Smart Dustbin
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