Smart Dustbin using Arduino, Ultrasonic Sensor, Servo Motor

1#include <Servo.h>
2
3Servo servoMain; // Define our Servo
4
5int  trigpin = 10;
6
7int echopin = 11;
8
9int distance;
10
11float duration;
12
13float  cm;
14
15void setup()
16
17{
18
19servoMain.attach(9); // servo on digital  pin 10
20
21pinMode(trigpin, OUTPUT);
22
23pinMode(echopin, INPUT);
24
25}
26
27void  loop()
28
29{
30
31digitalWrite(trigpin, LOW);
32
33delay(2);
34
35digitalWrite(trigpin,  HIGH);
36
37delayMicroseconds(10);
38
39digitalWrite(trigpin, LOW);
40
41duration  = pulseIn(echopin, HIGH);
42
43cm = (duration/58.82);
44
45distance = cm;
46
47if(distance<30)
48
49{
50
51servoMain.write(180);  // Turn Servo back to center position (90 degrees)
52
53delay(3000);
54
55}
56
57else{
58
59servoMain.write(0);
60
61delay(50);
62
63}
64
65}

1#include <Servo.h>
2
3Servo servoMain; // Define our Servo
4
5int
6  trigpin = 10;
7
8int echopin = 11;
9
10int distance;
11
12float duration;
13
14float
15  cm;
16
17void setup()
18
19{
20
21servoMain.attach(9); // servo on digital
22  pin 10
23
24pinMode(trigpin, OUTPUT);
25
26pinMode(echopin, INPUT);
27
28}
29
30void
31  loop()
32
33{
34
35digitalWrite(trigpin, LOW);
36
37delay(2);
38
39digitalWrite(trigpin,
40  HIGH);
41
42delayMicroseconds(10);
43
44digitalWrite(trigpin, LOW);
45
46duration
47  = pulseIn(echopin, HIGH);
48
49cm = (duration/58.82);
50
51distance = cm;
52
53if(distance<30)
54
55{
56
57servoMain.write(180);
58  // Turn Servo back to center position (90 degrees)
59
60delay(3000);
61
62}
63
64else{
65
66servoMain.write(0);
67
68delay(50);
69
70}
71
72}