Waste Segregator!

A small working project based on ARDUINO which separates Magnetic, Wet and Dry Wastes using few sensors and motors.

Dec 5, 2021

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2 respects

Components and supplies

SG90 Micro-servo motor

Arduino UNO

Alphanumeric LCD, 16 x 2

Ultrasonic Sensor - HC-SR04 (Generic)

Breadboard (generic)

Jumper wires (generic)

SparkFun Soil Moisture Sensor (with Screw Terminals)

DC Motor, 12 V

Tools and machines

Magnet, Button

Hot glue gun (generic)

Apps and platforms

Arduino IDE

Project description

Code

arduino

1#include <Servo.h>
2#include <LiquidCrystal.h>
3Servo myservo;  
4int  pos = 0;  
5const int trigPin1 = 9;
6const int echoPin1 = 8;
7const int trigPin2  = 7;
8const int echoPin2 = 6;
9const int led = 13;
10int sensorPin = A0; 
11int  sensorValue;  
12int limit = 950; 
13const int rs = 12, en = 11, d4 = 5, d5 =  4, d6 = 3, d7 = 2;
14LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
15float moisture;
16bool  wet = false, obs2 = false;
17
18void setup() 
19{
20  lcd.begin(16, 2);
21  lcd.print("Waste Segregator");
22  myservo.attach(10);
23  pinMode(trigPin1,  OUTPUT);
24  pinMode(echoPin1, INPUT); 
25  pinMode(trigPin2, OUTPUT);
26  pinMode(echoPin2,  INPUT);
27  pinMode(led, OUTPUT);
28  myservo.write(pos);
29}
30
31// UV Obstacle  Sensing Function
32bool obstacle(int trigPin, int echoPin, String s1){
33  
34  //for(int i=0;i<5;i++){
35    //UV code
36    long duration, distance;
37    digitalWrite(trigPin,  HIGH);
38    delayMicroseconds(1000);
39    digitalWrite(trigPin, LOW);
40    duration  = pulseIn(echoPin, HIGH);
41    distance = (duration/2) / 29.1;
42    Serial.print(distance);
43    Serial.println("CM"+s1);
44    delay(10);
45    
46    if(distance<=12)  return true;
47    else return false;
48  //}
49  
50}
51
52// Soil Moisture  Sensor Code
53bool wetSense(){
54  
55  for(int i = 0; i < 8 ; i++) {
56       sensorValue  = analogRead(sensorPin); 
57       moisture = (100 - (sensorValue/1023.0)*100);
58       Serial.println("Analog Value : ");
59       Serial.println(sensorValue);
60       Serial.println("Moisture : ");
61       Serial.print(moisture);
62       Serial.println("%");
63       if(sensorValue < limit){
64          return true;
65       }
66       delay(500);
67  }
68  return false;
69}
70
71//LCD Display
72
73void printer(String s){
74
75  lcd.setCursor(0, 1);
76  lcd.print(s);
77  delay(2000);
78  
79}
80
81void  loop() 
82{
83  Serial.begin(9600);
84  printer(" Monitoring... ");
85  if(obstacle(trigPin1,  echoPin1,"one") == true){
86
87      delay(11500);
88      for(int i = 0 ;  i < 5 ; i++ ) { 
89        obs2 = obstacle(trigPin2, echoPin2,"two");
90        delay(200);
91        if(obs2 == true) {
92          delay(5300);
93          wet = (wetSense());
94          break;
95        }
96      }
97
98      if(obs2==true && wet==true){
99        
100        myservo.write(pos+190);
101        printer("   Wet  Waste   ");        
102      }
103      else if(obs2==true && wet==false){
104        myservo.write(pos);       
105        printer("   Dry  Waste   ");
106        myservo.write(pos);
107      }
108      else if(obs2==false)
109        printer(" Magnetic Waste ");
110        
111      delay(2000);
112  }
113  delay(1000);
114

#include <Servo.h>
#include <LiquidCrystal.h>
Servo myservo;  
int  pos = 0;  
const int trigPin1 = 9;
const int echoPin1 = 8;
const int trigPin2  = 7;
const int echoPin2 = 6;
const int led = 13;
int sensorPin = A0; 
int  sensorValue;  
int limit = 950; 
const int rs = 12, en = 11, d4 = 5, d5 =  4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
float moisture;
bool  wet = false, obs2 = false;

void setup() 
{
  lcd.begin(16, 2);
  lcd.print("Waste Segregator");
  myservo.attach(10);
  pinMode(trigPin1,  OUTPUT);
  pinMode(echoPin1, INPUT); 
  pinMode(trigPin2, OUTPUT);
  pinMode(echoPin2,  INPUT);
  pinMode(led, OUTPUT);
  myservo.write(pos);
}

// UV Obstacle  Sensing Function
bool obstacle(int trigPin, int echoPin, String s1){
  
  //for(int i=0;i<5;i++){
    //UV code
    long duration, distance;
    digitalWrite(trigPin,  HIGH);
    delayMicroseconds(1000);
    digitalWrite(trigPin, LOW);
    duration  = pulseIn(echoPin, HIGH);
    distance = (duration/2) / 29.1;
    Serial.print(distance);
    Serial.println("CM"+s1);
    delay(10);
    
    if(distance<=12)  return true;
    else return false;
  //}
  
}

// Soil Moisture  Sensor Code
bool wetSense(){
  
  for(int i = 0; i < 8 ; i++) {
       sensorValue  = analogRead(sensorPin); 
       moisture = (100 - (sensorValue/1023.0)*100);
       Serial.println("Analog Value : ");
       Serial.println(sensorValue);
       Serial.println("Moisture : ");
       Serial.print(moisture);
       Serial.println("%");
       if(sensorValue < limit){
          return true;
       }
       delay(500);
  }
  return false;
}

//LCD Display

void printer(String s){

  lcd.setCursor(0, 1);
  lcd.print(s);
  delay(2000);
  
}

void  loop() 
{
  Serial.begin(9600);
  printer(" Monitoring... ");
  if(obstacle(trigPin1,  echoPin1,"one") == true){

      delay(11500);
      for(int i = 0 ;  i < 5 ; i++ ) { 
        obs2 = obstacle(trigPin2, echoPin2,"two");
        delay(200);
        if(obs2 == true) {
          delay(5300);
          wet = (wetSense());
          break;
        }
      }

      if(obs2==true && wet==true){
        
        myservo.write(pos+190);
        printer("   Wet  Waste   ");        
      }
      else if(obs2==true && wet==false){
        myservo.write(pos);       
        printer("   Dry  Waste   ");
        myservo.write(pos);
      }
      else if(obs2==false)
        printer(" Magnetic Waste ");
        
      delay(2000);
  }
  delay(1000);

Code

arduino

1#include <Servo.h>
2#include <LiquidCrystal.h>
3Servo myservo;  
4int   pos = 0;  
5const int trigPin1 = 9;
6const int echoPin1 = 8;
7const int trigPin2   = 7;
8const int echoPin2 = 6;
9const int led = 13;
10int sensorPin = A0; 
11int   sensorValue;  
12int limit = 950; 
13const int rs = 12, en = 11, d4 = 5, d5 =   4, d6 = 3, d7 = 2;
14LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
15float moisture;
16bool   wet = false, obs2 = false;
17
18void setup() 
19{
20  lcd.begin(16, 2);
21   lcd.print("Waste Segregator");
22  myservo.attach(10);
23  pinMode(trigPin1,   OUTPUT);
24  pinMode(echoPin1, INPUT); 
25  pinMode(trigPin2, OUTPUT);
26  pinMode(echoPin2,   INPUT);
27  pinMode(led, OUTPUT);
28  myservo.write(pos);
29}
30
31// UV Obstacle   Sensing Function
32bool obstacle(int trigPin, int echoPin, String s1){
33  
34   //for(int i=0;i<5;i++){
35    //UV code
36    long duration, distance;
37    digitalWrite(trigPin,   HIGH);
38    delayMicroseconds(1000);
39    digitalWrite(trigPin, LOW);
40    duration   = pulseIn(echoPin, HIGH);
41    distance = (duration/2) / 29.1;
42    Serial.print(distance);
43     Serial.println("CM"+s1);
44    delay(10);
45    
46    if(distance<=12)   return true;
47    else return false;
48  //}
49  
50}
51
52// Soil Moisture   Sensor Code
53bool wetSense(){
54  
55  for(int i = 0; i < 8 ; i++) {
56       sensorValue   = analogRead(sensorPin); 
57       moisture = (100 - (sensorValue/1023.0)*100);
58        Serial.println("Analog Value : ");
59       Serial.println(sensorValue);
60        Serial.println("Moisture : ");
61       Serial.print(moisture);
62       Serial.println("%");
63        if(sensorValue < limit){
64          return true;
65       }
66       delay(500);
67   }
68  return false;
69}
70
71//LCD Display
72
73void printer(String s){
74
75   lcd.setCursor(0, 1);
76  lcd.print(s);
77  delay(2000);
78  
79}
80
81void   loop() 
82{
83  Serial.begin(9600);
84  printer(" Monitoring... ");
85  if(obstacle(trigPin1,   echoPin1,"one") == true){
86
87      delay(11500);
88      for(int i = 0 ;   i < 5 ; i++ ) { 
89        obs2 = obstacle(trigPin2, echoPin2,"two");
90        delay(200);
91         if(obs2 == true) {
92          delay(5300);
93          wet = (wetSense());
94           break;
95        }
96      }
97
98      if(obs2==true && wet==true){
99         
100        myservo.write(pos+190);
101        printer("   Wet  Waste   ");         
102      }
103      else if(obs2==true && wet==false){
104        myservo.write(pos);        
105        printer("   Dry  Waste   ");
106        myservo.write(pos);
107       }
108      else if(obs2==false)
109        printer(" Magnetic Waste ");
110         
111      delay(2000);
112  }
113  delay(1000);
114

#include <Servo.h>
#include <LiquidCrystal.h>
Servo myservo;  
int   pos = 0;  
const int trigPin1 = 9;
const int echoPin1 = 8;
const int trigPin2   = 7;
const int echoPin2 = 6;
const int led = 13;
int sensorPin = A0; 
int   sensorValue;  
int limit = 950; 
const int rs = 12, en = 11, d4 = 5, d5 =   4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
float moisture;
bool   wet = false, obs2 = false;

void setup() 
{
  lcd.begin(16, 2);
   lcd.print("Waste Segregator");
  myservo.attach(10);
  pinMode(trigPin1,   OUTPUT);
  pinMode(echoPin1, INPUT); 
  pinMode(trigPin2, OUTPUT);
  pinMode(echoPin2,   INPUT);
  pinMode(led, OUTPUT);
  myservo.write(pos);
}

// UV Obstacle   Sensing Function
bool obstacle(int trigPin, int echoPin, String s1){
  
   //for(int i=0;i<5;i++){
    //UV code
    long duration, distance;
    digitalWrite(trigPin,   HIGH);
    delayMicroseconds(1000);
    digitalWrite(trigPin, LOW);
    duration   = pulseIn(echoPin, HIGH);
    distance = (duration/2) / 29.1;
    Serial.print(distance);
     Serial.println("CM"+s1);
    delay(10);
    
    if(distance<=12)   return true;
    else return false;
  //}
  
}

// Soil Moisture   Sensor Code
bool wetSense(){
  
  for(int i = 0; i < 8 ; i++) {
       sensorValue   = analogRead(sensorPin); 
       moisture = (100 - (sensorValue/1023.0)*100);
        Serial.println("Analog Value : ");
       Serial.println(sensorValue);
        Serial.println("Moisture : ");
       Serial.print(moisture);
       Serial.println("%");
        if(sensorValue < limit){
          return true;
       }
       delay(500);
   }
  return false;
}

//LCD Display

void printer(String s){

   lcd.setCursor(0, 1);
  lcd.print(s);
  delay(2000);
  
}

void   loop() 
{
  Serial.begin(9600);
  printer(" Monitoring... ");
  if(obstacle(trigPin1,   echoPin1,"one") == true){

      delay(11500);
      for(int i = 0 ;   i < 5 ; i++ ) { 
        obs2 = obstacle(trigPin2, echoPin2,"two");
        delay(200);
         if(obs2 == true) {
          delay(5300);
          wet = (wetSense());
           break;
        }
      }

      if(obs2==true && wet==true){
         
        myservo.write(pos+190);
        printer("   Wet  Waste   ");         
      }
      else if(obs2==true && wet==false){
        myservo.write(pos);        
        printer("   Dry  Waste   ");
        myservo.write(pos);
       }
      else if(obs2==false)
        printer(" Magnetic Waste ");
         
      delay(2000);
  }
  delay(1000);

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