This project presents a Smart Dustbin System designed to improve waste management in smart buildings, colleges, hospitals, bus stands, and other public places. The system uses a PIC microcontroller as the main controlling unit, interfaced with an ultrasonic sensor, two IR sensors, servo motor, LCD, and ESP8266 Wi-Fi module. The ultrasonic sensor detects the presence of a person near the dustbin and automatically opens the dustbin lid using a servo motor. The two IR sensors placed inside the dustbin detect the garbage level as Empty, Half, or Full. The current dustbin status is displayed on the LCD, and when the garbage reaches the full level, the system sends a Blynk mobile application notification to alert the concerned person for timely waste collection. The PIC microcontroller is programmed in Embedded C to process the sensor inputs and control the complete system, providing an automated and efficient solution for smart waste management.          

Objectives – Smart Dustbin System

• To design and develop an automatic smart dustbin using a PIC microcontroller.
• To automatically open and close the dustbin lid using an ultrasonic sensor and servo motor.
• To detect the garbage level as Empty, Half, and Full using two IR sensors.
• To display the dustbin status on an LCD.
• To monitor the dustbin status remotely using the ESP8266 Wi-Fi module and Blynk application.
• To send a Blynk notification when the dustbin reaches the Full level.
• To reduce manual monitoring and improve efficient and timely waste collection.

         

The major building blocks of this project are:  

1. Regulated Power Supply.
2. PIC microcontroller.
3. Reset button.
4. Crystal oscillator.
5. Ultrasonic Sensor.
6. IR sensor.
7. Wi-Fi module.
8. LCD display.
9. Servo motor.
10. LED indicators.

           

Software’s used:  

1. PIC C compiler for Embedded C programming.
2. Express SCH for Circuit design.

                       

Block Diagram:

       

video: