Smart Trashcan

A trash can that opens when you get near it

Feb 5, 2021

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home automation

Components and supplies

5 mm LED: Green

Jumper wires (generic)

Old contaner

SG90 Micro-servo motor

Arduino UNO

old metal ring

Ultrasonic Sensor - HC-SR04 (Generic)

Tools and machines

Hot glue gun (generic)

Drill / Driver, Cordless

Apps and platforms

Arduino IDE

Project description

Code

Smart Trashcan

when you get near it it opens

1#include <Servo.h>   //servo library
2Servo servo;     
3int trigPin
4  = 5;    
5int echoPin = 6;   
6int servoPin = 7;
7long duration, dist, average;
8   
9long aver[3];   //array for average
10
11
12void setup() {       
13
14    Serial.begin(9600);
15    servo.attach(servoPin);  
16    pinMode(trigPin,
17  OUTPUT);  
18    pinMode(echoPin, INPUT);  
19    servo.write(0);         //close
20  cap on power on
21    delay(100);
22    servo.detach(); 
23  pinMode(12, OUTPUT);
24}
25  
26
27void measure() {     
28digitalWrite(12, LOW);
29digitalWrite(trigPin,
30  LOW);
31delayMicroseconds(5);
32digitalWrite(trigPin, HIGH);
33delayMicroseconds(15);
34digitalWrite(trigPin,
35  LOW);
36pinMode(echoPin, INPUT);
37duration = pulseIn(echoPin, HIGH);
38dist
39  = (duration/2) / 29.1;    //obtain distance
40}
41void loop() { 
42  for (int
43  i=0;i<=2;i++) {   //average distance
44    measure();               
45   aver[i]=dist;
46            
47    delay(10);              //delay between measurements
48    digitalWrite(12,
49  HIGH);
50   
51  }
52 dist=(aver[0]+aver[1]+aver[2])/3;    
53
54if ( dist<90)
55  {
56//Change distance as per your need
57 servo.attach(servoPin);
58  delay(1);
59
60  servo.write(0);  
61 delay(2000);       
62 servo.write(100);    
63 delay(1000);
64
65  servo.detach();      
66}
67Serial.print(dist);
68}

#include <Servo.h>   //servo library
Servo servo;     
int trigPin
  = 5;    
int echoPin = 6;   
int servoPin = 7;
long duration, dist, average;
   
long aver[3];   //array for average


void setup() {       

    Serial.begin(9600);
    servo.attach(servoPin);  
    pinMode(trigPin,
  OUTPUT);  
    pinMode(echoPin, INPUT);  
    servo.write(0);         //close
  cap on power on
    delay(100);
    servo.detach(); 
  pinMode(12, OUTPUT);
}
  

void measure() {     
digitalWrite(12, LOW);
digitalWrite(trigPin,
  LOW);
delayMicroseconds(5);
digitalWrite(trigPin, HIGH);
delayMicroseconds(15);
digitalWrite(trigPin,
  LOW);
pinMode(echoPin, INPUT);
duration = pulseIn(echoPin, HIGH);
dist
  = (duration/2) / 29.1;    //obtain distance
}
void loop() { 
  for (int
  i=0;i<=2;i++) {   //average distance
    measure();               
   aver[i]=dist;
            
    delay(10);              //delay between measurements
    digitalWrite(12,
  HIGH);
   
  }
 dist=(aver[0]+aver[1]+aver[2])/3;    

if ( dist<90)
  {
//Change distance as per your need
 servo.attach(servoPin);
  delay(1);

  servo.write(0);  
 delay(2000);       
 servo.write(100);    
 delay(1000);

  servo.detach();      
}
Serial.print(dist);
}

Smart Trashcan

when you get near it it opens

1#include <Servo.h>   //servo library
2Servo servo;     
3int trigPin  = 5;    
4int echoPin = 6;   
5int servoPin = 7;
6long duration, dist, average;   
7long aver[3];   //array for average
8
9
10void setup() {       
11    Serial.begin(9600);
12    servo.attach(servoPin);  
13    pinMode(trigPin,  OUTPUT);  
14    pinMode(echoPin, INPUT);  
15    servo.write(0);         //close  cap on power on
16    delay(100);
17    servo.detach(); 
18  pinMode(12, OUTPUT);
19}  
20
21void measure() {     
22digitalWrite(12, LOW);
23digitalWrite(trigPin,  LOW);
24delayMicroseconds(5);
25digitalWrite(trigPin, HIGH);
26delayMicroseconds(15);
27digitalWrite(trigPin,  LOW);
28pinMode(echoPin, INPUT);
29duration = pulseIn(echoPin, HIGH);
30dist  = (duration/2) / 29.1;    //obtain distance
31}
32void loop() { 
33  for (int  i=0;i<=2;i++) {   //average distance
34    measure();               
35   aver[i]=dist;            
36    delay(10);              //delay between measurements
37    digitalWrite(12,  HIGH);
38   
39  }
40 dist=(aver[0]+aver[1]+aver[2])/3;    
41
42if ( dist<90)  {
43//Change distance as per your need
44 servo.attach(servoPin);
45  delay(1);
46  servo.write(0);  
47 delay(2000);       
48 servo.write(100);    
49 delay(1000);
50  servo.detach();      
51}
52Serial.print(dist);
53}

#include <Servo.h>   //servo library
Servo servo;     
int trigPin  = 5;    
int echoPin = 6;   
int servoPin = 7;
long duration, dist, average;   
long aver[3];   //array for average


void setup() {       
    Serial.begin(9600);
    servo.attach(servoPin);  
    pinMode(trigPin,  OUTPUT);  
    pinMode(echoPin, INPUT);  
    servo.write(0);         //close  cap on power on
    delay(100);
    servo.detach(); 
  pinMode(12, OUTPUT);
}  

void measure() {     
digitalWrite(12, LOW);
digitalWrite(trigPin,  LOW);
delayMicroseconds(5);
digitalWrite(trigPin, HIGH);
delayMicroseconds(15);
digitalWrite(trigPin,  LOW);
pinMode(echoPin, INPUT);
duration = pulseIn(echoPin, HIGH);
dist  = (duration/2) / 29.1;    //obtain distance
}
void loop() { 
  for (int  i=0;i<=2;i++) {   //average distance
    measure();               
   aver[i]=dist;            
    delay(10);              //delay between measurements
    digitalWrite(12,  HIGH);
   
  }
 dist=(aver[0]+aver[1]+aver[2])/3;    

if ( dist<90)  {
//Change distance as per your need
 servo.attach(servoPin);
  delay(1);
  servo.write(0);  
 delay(2000);       
 servo.write(100);    
 delay(1000);
  servo.detach();      
}
Serial.print(dist);
}

Downloadable files

Smart Trashcan

It is a smart trashcan that opens when you get near it I was going to by one my self off of amazon but they sell for about 60-70 DOLLARS! so i built one myself

Smart Trashcan

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blueninja503

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