Smart trash can!

When you put trash in front of it, the lid opens on itself!

Sep 5, 2021

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3251 views

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1 respects

home automation

smart appliances

uno

Components and supplies

Male/Female Jumper Wires

Male/Male Jumper Wires

Solderless Breadboard Half Size

9V 1A Switching Wall Power Supply

Ultrasonic Sensor - HC-SR04 (Generic)

SG90 Micro-servo motor

Arduino UNO

Tools and machines

Hot glue gun (generic)

Multitool, Screwdriver

Project description

Code

Trash can

c_cpp

you put it in the IDE and read it to find what pins go where and such

1#include <Servo.h>
2Servo servo1;
3int trigPin = 9;
4int echoPin  = 8;
5long distance;
6long duration;
7 
8void setup() 
9{
10servo1.attach(7);  
11 pinMode(trigPin, OUTPUT);
12 pinMode(echoPin, INPUT);// put your setup code  here, to run once:
13}
14 
15void loop() {
16  ultra();
17  servo1.write(90);
18  if(distance <= 10){
19  servo1.write(90);
20  delay(5000);
21  }
22
23  if(distance  > 10){
24    
25    servo1.write(0);
26  }
27}
28 
29void ultra(){
30  digitalWrite(trigPin,  LOW);
31  delayMicroseconds(2);
32  digitalWrite(trigPin, HIGH);
33  delayMicroseconds(10);
34  digitalWrite(trigPin, LOW);
35  duration = pulseIn(echoPin, HIGH);
36  distance  = duration*0.034/2;
37  }

#include <Servo.h>
Servo servo1;
int trigPin = 9;
int echoPin  = 8;
long distance;
long duration;
 
void setup() 
{
servo1.attach(7);  
 pinMode(trigPin, OUTPUT);
 pinMode(echoPin, INPUT);// put your setup code  here, to run once:
}
 
void loop() {
  ultra();
  servo1.write(90);
  if(distance <= 10){
  servo1.write(90);
  delay(5000);
  }

  if(distance  > 10){
    
    servo1.write(0);
  }
}
 
void ultra(){
  digitalWrite(trigPin,  LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance  = duration*0.034/2;
  }

Trash can

c_cpp

you put it in the IDE and read it to find what pins go where and such

1#include <Servo.h>
2Servo servo1;
3int trigPin = 9;
4int echoPin
5  = 8;
6long distance;
7long duration;
8 
9void setup() 
10{
11servo1.attach(7);
12  
13 pinMode(trigPin, OUTPUT);
14 pinMode(echoPin, INPUT);// put your setup code
15  here, to run once:
16}
17 
18void loop() {
19  ultra();
20  servo1.write(90);
21
22  if(distance <= 10){
23  servo1.write(90);
24  delay(5000);
25  }
26
27  if(distance
28  > 10){
29    
30    servo1.write(0);
31  }
32}
33 
34void ultra(){
35  digitalWrite(trigPin,
36  LOW);
37  delayMicroseconds(2);
38  digitalWrite(trigPin, HIGH);
39  delayMicroseconds(10);
40
41  digitalWrite(trigPin, LOW);
42  duration = pulseIn(echoPin, HIGH);
43  distance
44  = duration*0.034/2;
45  }

#include <Servo.h>
Servo servo1;
int trigPin = 9;
int echoPin
  = 8;
long distance;
long duration;
 
void setup() 
{
servo1.attach(7);
  
 pinMode(trigPin, OUTPUT);
 pinMode(echoPin, INPUT);// put your setup code
  here, to run once:
}
 
void loop() {
  ultra();
  servo1.write(90);

  if(distance <= 10){
  servo1.write(90);
  delay(5000);
  }

  if(distance
  > 10){
    
    servo1.write(0);
  }
}
 
void ultra(){
  digitalWrite(trigPin,
  LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance
  = duration*0.034/2;
  }

Downloadable files

A bad picture of the wiring

This is the wiring for the trash can the servo and the ultra sonic sensor are drawn from the breadboard and the pins go to the arduino.

A bad picture of the wiring

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