Published July 15, 2023

Dust Utilization Segregation & Transmission BIN

A dustbin, which is smart enough to segregate waste based on if material is metallic, non-metallic, dry or wet.

IntermediateFull instructions provided156

Dust Utilization Segregation & Transmission BIN

Things used in this project

Hardware components

Arduino UNO

SG90 Micro-servo motor

Telecontrolli Ceramic Capacitive Rain Sensor

Ultrasonic Sensor - HC-SR04 (Generic)

Breadboard (generic)

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

SO it's a smart bin which can segregate wastes based on if it's a metal, non metal, dry or wet material, it's a fancy dustbin which could be super useful at homes or outdoors for waste material segregation. Automation in the dustbin reduces need for manual sorting, optimizing waste management processes and reducing labor requirement, hence improved efficiency.

The main objectives of the smart bin project are as follows:

Design and build a bin prototype with different compartments for waste segregation.

Implement sensors and technology to identify and categorize waste materials.

Develop an automated system to sort waste into appropriate compartments.

Promote efficient waste management practices and recycling efforts.

Cardboard for bin's body

Procedure-

Step-1

I used cardboards for making body of the smart bin, you can change it according to preference, like a wooden box or bucket can be handy. if using cardboard, cut it and give a shape, make separate columns for Metallic, dry and wet wastes.

Step-2

when cutting part is done, it was time to bring on the electronics, first we made a metal detector, we took a piece of cardboard, wrapped it with foil, from the middle we left the gap, so that foil should not touch each other( to prevent the circuit from completing), then we soldered 2 wires for the input to Arduino, now this will act as a metal detector, how?

when a metal will be kept between gaps of foil, causing the foil circuit to complete and we will get a 1 in Arduino analog input pin. For dry waste, it won't conduct, hence we will get 0 in Arduino's analog input pin.

Metal detector wire was connected to pin A0 of Arduino.

Metal detector

Step-3

Next, Starting from top now, to open the lid, only when someone shows hand gesture, we used ultrasonic sensor, along with servo, of course... This servo was connected to pin 12, while ultrasonic sensor's trig pin to 11 and echo pin to 10 of Arduino.

Breadboard connections

Servo controlled lid

Step-4

Now, if it's metal waste, servo motor 1 (connected to digital port 3) will tilt towards metal block to drop the waste, what if it's not? next, for this we used rain drop sensor to differentiate between dry and wet waste. servo motor 1 will tilt towards other side block if it's not a metal. Here's waste will drop on rain drop sensor module.

Digital and analog pins of rain drop sensors were respectively connected to 6 and A1 port of Arduino UNO.

Step-5

If waste is wet, raindrop sensor will detect it, instructing the servo motor 3(connected to digital port 8) to tilt towards wet waste block to drop the waste.

Step-6

Decorations...

FINAL PRODUCT-

Code

Arduino code for smart bin

#include <Servo.h>
#define ledPin 6
#define sensorPin A1
Servo servo_motor_1;
Servo servo_motor_2;
Servo servo_motor_3;
Servo myServo;
const int trigPin = 11;
const int echoPin = 10;
long duration;
int distance;
int metalpin= A0;
int metval;
int pp;
void setup() {
 // put your setup code here, to run once:
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT); 
pinMode(metalpin,INPUT);
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW);
Serial.begin(9600);
servo_motor_1.attach(3);
servo_motor_2.attach(9);
servo_motor_3.attach(8);
myServo.attach(12);
}
void loop() {
 // put your main code here, to run repeatedly:
myServo.write(0);
distance = calculateDistance(); 
 Serial.println(distance);
 delay(500);
 if(distance<=14){ 
 myServo.write(180);
 delay(2000);
 }
 else{
 myServo.write(0);
 delay(200);
 }
 while(distance<=14){
 servo_motor_1.write(90);
 delay(5000);
 metval=analogRead(metalpin);
 Serial.print("metalpin= ");
 Serial.println(metval);
 if (metval>=800){
 servo_motor_1.write(0);
 delay(2000);
 }
 else{
 servo_motor_1.write(180);
 delay(2000);
 }
 pp=readSensor();
 Serial.print("Analog output: ");
 Serial.println(pp);
 delay(500);
 servo_motor_2.write(180);
 delay(5000);
 if (pp>=50){
 servo_motor_3.write(30);
 delay(2000);
 }
 else{
 servo_motor_3.write(150);
delay(2000);
 }
 servo_motor_2.write(0);
 delay(2000);
 servo_motor_2.write(180);
 delay(2000);
 servo_motor_3.write(90);
 delay(2000);
 servo_motor_1.write(90);
 delay(2000);
 myServo.write(0);
 delay(200);
 distance = calculateDistance();
}
}
int readSensor() {
 int sensorValue = analogRead(sensorPin); 
 int outputValue = map(sensorValue, 0, 1023, 255, 0);
 analogWrite(ledPin, outputValue); 
 return outputValue;
}
int calculateDistance(){
  digitalWrite(trigPin, LOW); 
 delayMicroseconds(2);
 digitalWrite(trigPin, HIGH); 
 delayMicroseconds(10);
 digitalWrite(trigPin, LOW);
 duration = pulseIn(echoPin, HIGH);
 distance= duration*0.034/2;
 return distance;
}

Credits

Harsh Jee

3 projects • 1 follower

Electronics Engineer | super interested in VLSI and semiconductor industry.

Dust Utilization Segregation & Transmission BIN

Things used in this project

Hardware components

Software apps and online services

Story

Procedure-

FINAL PRODUCT-

Schematics

Schematics

Code

Arduino code for smart bin

Credits

Harsh Jee

Comments

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Dust Utilization Segregation & Transmission BIN

Dust Utilization Segregation & Transmission BIN

Things used in this project

Hardware components

Software apps and online services

Story

Procedure-

FINAL PRODUCT-

Schematics

Schematics

Code

Arduino code for smart bin

Credits

Harsh Jee

Comments

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