Touchless 20 second musical handwashing timer

This is a Arduino made project that plays the song Staying Alive as a timer for kids who struggle to wash there hands for 20 seconds.

Oct 13, 2020

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music

kids

health

Components and supplies

Buzzer, Piezo

Arduino UNO

Ultrasonic Sensor - HC-SR04 (Generic)

Male/Female Jumper Wires

Tools and machines

Computer

Apps and platforms

Arduino IDE

Project description

Code

untitled

arduino

1#define trigPin 13
2
3#define echoPin 12
4
5#define led 10
6
7void   setup() { 
8  Serial.begin (9600);
9  pinMode(trigPin, OUTPUT);
10  pinMode(echoPin,   INPUT);
11  pinMode(led, OUTPUT);
12}
13
14void loop(){ 
15  long duration,   distance;
16  digitalWrite(trigPin, LOW);
17  delayMicroseconds(2);
18  
19   digitalWrite(trigPin, HIGH);
20  delayMicroseconds(10);
21
22  digitalWrite(trigPin,   LOW);
23  
24  duration = pulseIn(echoPin, HIGH);
25  distance = (duration/2)   / 29.1;
26
27  if (distance < 10){
28    Countdown();
29    Wait();
30    Song();       
31    
32  }
33  else {
34  Wait();
35  }
36  Serial.print(distance);
37
38   Serial.println(" cm");
39
40  delay(125);
41
42} 
43
44void playSound()   {
45    digitalWrite(led,HIGH);
46    delay(100);
47    digitalWrite(led,LOW);
48     delay(100);
49 
50}
51
52void Countdown() {
53   tone(10, 2000, 100);
54   delay(900);
55   tone(10, 2000, 100);
56  delay(900);
57   tone(10, 2000, 100);
58   delay(900);
59   tone(10, 3000, 1000);
60  delay(125);
61}
62
63void Wait()   {
64delay(100);
65}
66
67
68void Song() {
69  //Verse
70  tone(10, 523.25,   100);
71  delay(150);
72  tone(10, 523.25, 100);
73  delay(150);
74  tone(10,   523.25, 100);
75  delay(150);
76  tone(10, 523.25, 100);
77  delay(150);
78   tone(10, 466.61, 100);
79  delay(150);
80  tone(10, 466.61, 100);
81  delay(150);
82   tone(10, 466.61, 100);
83  delay(150);
84  tone(10, 466.61, 100);
85  delay(150);
86   tone(10, 415.3, 100);
87  delay(150);
88  tone(10, 415.3, 100);
89  delay(150);
90   tone(10, 415.3, 100);
91  delay(150);
92  tone(10, 415.3, 100);
93  delay(150);
94   tone(10, 392, 100);
95  delay(150);
96   tone(10, 392, 100);
97  delay(150);
98    tone(10, 392, 100);
99  delay(150);
100   tone(10, 392, 100);
101  delay(150);
102    tone(10, 311.13, 100);
103  delay(150);
104   tone(10, 349.23, 100);
105  delay(150);
106    tone(10, 349.23, 100);
107  delay(150);
108   tone(10, 349.23, 100);
109  delay(700);
110    tone(10, 311.13, 100);
111  delay(150);
112   tone(10, 349.23, 100);
113  delay(150);
114    tone(10, 349.23, 100);
115  delay(150);
116   tone(10, 349.23, 100);
117  delay(700);
118//Chorus
119    tone(10, 523.25, 200);
120  delay(700);
121   tone(10, 466.16, 200);
122  delay(700);
123    tone(10, 415.3, 200);
124  delay(700);
125   tone(10, 392, 200);
126 delay(700);
127
128   tone(10, 311.13, 100);
129  delay(150);
130   tone(10, 349.23, 100);
131  delay(150);
132    tone(10, 349.23, 100);
133  delay(150);
134   tone(10, 349.23, 100);
135  delay(700);
136    tone(10, 311.13, 100);
137  delay(150);
138   tone(10, 349.23, 100);
139  delay(150);
140    tone(10, 349.23, 100);
141  delay(150);
142   tone(10, 349.23, 150);
143  delay(700);
144
145    tone(10, 523.25, 200);
146  delay(700);
147   tone(10, 466.16, 200);
148  delay(700);
149    tone(10, 415.3, 200);
150  delay(700);
151   tone(10, 392, 200);
152
153   delay(700);
154    tone(10, 349.23, 100);
155  delay(150);
156   tone(10, 349.23, 100);
157  delay(150);
158    tone(10, 349.23, 100);
159   delay(150);
160  
161 
162   tone(10, 523.25, 2000);
163   delay(2000);
164   tone(10, 466.16, 2000);
165   delay(2000);
166   tone(10, 415.30,   2000);
167 delay(2000);
168   tone(10, 392, 2000);
169  delay(2000);
170}
171

#define trigPin 13

#define echoPin 12

#define led 10

void   setup() { 
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin,   INPUT);
  pinMode(led, OUTPUT);
}

void loop(){ 
  long duration,   distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  
   digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(trigPin,   LOW);
  
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2)   / 29.1;

  if (distance < 10){
    Countdown();
    Wait();
    Song();       
    
  }
  else {
  Wait();
  }
  Serial.print(distance);

   Serial.println(" cm");

  delay(125);

} 

void playSound()   {
    digitalWrite(led,HIGH);
    delay(100);
    digitalWrite(led,LOW);
     delay(100);
 
}

void Countdown() {
   tone(10, 2000, 100);
   delay(900);
   tone(10, 2000, 100);
  delay(900);
   tone(10, 2000, 100);
   delay(900);
   tone(10, 3000, 1000);
  delay(125);
}

void Wait()   {
delay(100);
}


void Song() {
  //Verse
  tone(10, 523.25,   100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);
  tone(10,   523.25, 100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);
   tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
   tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
   tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
   tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
    tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
    tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
    tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
    tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
    tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
//Chorus
    tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);
    tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);
 delay(700);

   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
    tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
    tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
    tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 150);
  delay(700);

    tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);
    tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);

   delay(700);
    tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
    tone(10, 349.23, 100);
   delay(150);
  
 
   tone(10, 523.25, 2000);
   delay(2000);
   tone(10, 466.16, 2000);
   delay(2000);
   tone(10, 415.30,   2000);
 delay(2000);
   tone(10, 392, 2000);
  delay(2000);
}

untitled

arduino

1#define trigPin 13
2
3#define echoPin 12
4
5#define led 10
6
7void  setup() { 
8  Serial.begin (9600);
9  pinMode(trigPin, OUTPUT);
10  pinMode(echoPin,  INPUT);
11  pinMode(led, OUTPUT);
12}
13
14void loop(){ 
15  long duration,  distance;
16  digitalWrite(trigPin, LOW);
17  delayMicroseconds(2);
18  
19  digitalWrite(trigPin, HIGH);
20  delayMicroseconds(10);
21
22  digitalWrite(trigPin,  LOW);
23  
24  duration = pulseIn(echoPin, HIGH);
25  distance = (duration/2)  / 29.1;
26
27  if (distance < 10){
28    Countdown();
29    Wait();
30    Song();      
31    
32  }
33  else {
34  Wait();
35  }
36  Serial.print(distance);
37
38  Serial.println(" cm");
39
40  delay(125);
41
42} 
43
44void playSound()  {
45    digitalWrite(led,HIGH);
46    delay(100);
47    digitalWrite(led,LOW);
48    delay(100);
49 
50}
51
52void Countdown() {
53   tone(10, 2000, 100);
54  delay(900);
55   tone(10, 2000, 100);
56  delay(900);
57   tone(10, 2000, 100);
58  delay(900);
59   tone(10, 3000, 1000);
60  delay(125);
61}
62
63void Wait()  {
64delay(100);
65}
66
67
68void Song() {
69  //Verse
70  tone(10, 523.25,  100);
71  delay(150);
72  tone(10, 523.25, 100);
73  delay(150);
74  tone(10,  523.25, 100);
75  delay(150);
76  tone(10, 523.25, 100);
77  delay(150);
78  tone(10, 466.61, 100);
79  delay(150);
80  tone(10, 466.61, 100);
81  delay(150);
82  tone(10, 466.61, 100);
83  delay(150);
84  tone(10, 466.61, 100);
85  delay(150);
86  tone(10, 415.3, 100);
87  delay(150);
88  tone(10, 415.3, 100);
89  delay(150);
90  tone(10, 415.3, 100);
91  delay(150);
92  tone(10, 415.3, 100);
93  delay(150);
94  tone(10, 392, 100);
95  delay(150);
96   tone(10, 392, 100);
97  delay(150);
98   tone(10, 392, 100);
99  delay(150);
100   tone(10, 392, 100);
101  delay(150);
102   tone(10, 311.13, 100);
103  delay(150);
104   tone(10, 349.23, 100);
105  delay(150);
106   tone(10, 349.23, 100);
107  delay(150);
108   tone(10, 349.23, 100);
109  delay(700);
110   tone(10, 311.13, 100);
111  delay(150);
112   tone(10, 349.23, 100);
113  delay(150);
114   tone(10, 349.23, 100);
115  delay(150);
116   tone(10, 349.23, 100);
117  delay(700);
118//Chorus
119   tone(10, 523.25, 200);
120  delay(700);
121   tone(10, 466.16, 200);
122  delay(700);
123   tone(10, 415.3, 200);
124  delay(700);
125   tone(10, 392, 200);
126 delay(700);
127
128  tone(10, 311.13, 100);
129  delay(150);
130   tone(10, 349.23, 100);
131  delay(150);
132   tone(10, 349.23, 100);
133  delay(150);
134   tone(10, 349.23, 100);
135  delay(700);
136   tone(10, 311.13, 100);
137  delay(150);
138   tone(10, 349.23, 100);
139  delay(150);
140   tone(10, 349.23, 100);
141  delay(150);
142   tone(10, 349.23, 150);
143  delay(700);
144
145   tone(10, 523.25, 200);
146  delay(700);
147   tone(10, 466.16, 200);
148  delay(700);
149   tone(10, 415.3, 200);
150  delay(700);
151   tone(10, 392, 200);
152
153   delay(700);
154   tone(10, 349.23, 100);
155  delay(150);
156   tone(10, 349.23, 100);
157  delay(150);
158   tone(10, 349.23, 100);
159   delay(150);
160  
161 
162   tone(10, 523.25, 2000);
163  delay(2000);
164   tone(10, 466.16, 2000);
165   delay(2000);
166   tone(10, 415.30,  2000);
167 delay(2000);
168   tone(10, 392, 2000);
169  delay(2000);
170}
171

#define trigPin 13

#define echoPin 12

#define led 10

void  setup() { 
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin,  INPUT);
  pinMode(led, OUTPUT);
}

void loop(){ 
  long duration,  distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(trigPin,  LOW);
  
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2)  / 29.1;

  if (distance < 10){
    Countdown();
    Wait();
    Song();      
    
  }
  else {
  Wait();
  }
  Serial.print(distance);

  Serial.println(" cm");

  delay(125);

} 

void playSound()  {
    digitalWrite(led,HIGH);
    delay(100);
    digitalWrite(led,LOW);
    delay(100);
 
}

void Countdown() {
   tone(10, 2000, 100);
  delay(900);
   tone(10, 2000, 100);
  delay(900);
   tone(10, 2000, 100);
  delay(900);
   tone(10, 3000, 1000);
  delay(125);
}

void Wait()  {
delay(100);
}


void Song() {
  //Verse
  tone(10, 523.25,  100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);
  tone(10,  523.25, 100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);
  tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);
   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
//Chorus
   tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);
   tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);
 delay(700);

  tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 150);
  delay(700);

   tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);
   tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);

   delay(700);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
   delay(150);
  
 
   tone(10, 523.25, 2000);
  delay(2000);
   tone(10, 466.16, 2000);
   delay(2000);
   tone(10, 415.30,  2000);
 delay(2000);
   tone(10, 392, 2000);
  delay(2000);
}

untitled

arduino

1#define trigPin 13
2
3#define echoPin 12
4
5#define led 10
6
7void
8  setup() { 
9  Serial.begin (9600);
10  pinMode(trigPin, OUTPUT);
11  pinMode(echoPin,
12  INPUT);
13  pinMode(led, OUTPUT);
14}
15
16void loop(){ 
17  long duration,
18  distance;
19  digitalWrite(trigPin, LOW);
20  delayMicroseconds(2);
21  
22
23  digitalWrite(trigPin, HIGH);
24  delayMicroseconds(10);
25
26  digitalWrite(trigPin,
27  LOW);
28  
29  duration = pulseIn(echoPin, HIGH);
30  distance = (duration/2)
31  / 29.1;
32
33  if (distance < 10){
34    Countdown();
35    Wait();
36    Song();
37      
38    
39  }
40  else {
41  Wait();
42  }
43  Serial.print(distance);
44
45
46  Serial.println(" cm");
47
48  delay(125);
49
50} 
51
52void playSound()
53  {
54    digitalWrite(led,HIGH);
55    delay(100);
56    digitalWrite(led,LOW);
57
58    delay(100);
59 
60}
61
62void Countdown() {
63   tone(10, 2000, 100);
64
65  delay(900);
66   tone(10, 2000, 100);
67  delay(900);
68   tone(10, 2000, 100);
69
70  delay(900);
71   tone(10, 3000, 1000);
72  delay(125);
73}
74
75void Wait()
76  {
77delay(100);
78}
79
80
81void Song() {
82  //Verse
83  tone(10, 523.25,
84  100);
85  delay(150);
86  tone(10, 523.25, 100);
87  delay(150);
88  tone(10,
89  523.25, 100);
90  delay(150);
91  tone(10, 523.25, 100);
92  delay(150);
93
94  tone(10, 466.61, 100);
95  delay(150);
96  tone(10, 466.61, 100);
97  delay(150);
98
99  tone(10, 466.61, 100);
100  delay(150);
101  tone(10, 466.61, 100);
102  delay(150);
103
104  tone(10, 415.3, 100);
105  delay(150);
106  tone(10, 415.3, 100);
107  delay(150);
108
109  tone(10, 415.3, 100);
110  delay(150);
111  tone(10, 415.3, 100);
112  delay(150);
113
114  tone(10, 392, 100);
115  delay(150);
116   tone(10, 392, 100);
117  delay(150);
118
119   tone(10, 392, 100);
120  delay(150);
121   tone(10, 392, 100);
122  delay(150);
123
124   tone(10, 311.13, 100);
125  delay(150);
126   tone(10, 349.23, 100);
127  delay(150);
128
129   tone(10, 349.23, 100);
130  delay(150);
131   tone(10, 349.23, 100);
132  delay(700);
133
134   tone(10, 311.13, 100);
135  delay(150);
136   tone(10, 349.23, 100);
137  delay(150);
138
139   tone(10, 349.23, 100);
140  delay(150);
141   tone(10, 349.23, 100);
142  delay(700);
143//Chorus
144
145   tone(10, 523.25, 200);
146  delay(700);
147   tone(10, 466.16, 200);
148  delay(700);
149
150   tone(10, 415.3, 200);
151  delay(700);
152   tone(10, 392, 200);
153 delay(700);
154
155
156  tone(10, 311.13, 100);
157  delay(150);
158   tone(10, 349.23, 100);
159  delay(150);
160
161   tone(10, 349.23, 100);
162  delay(150);
163   tone(10, 349.23, 100);
164  delay(700);
165
166   tone(10, 311.13, 100);
167  delay(150);
168   tone(10, 349.23, 100);
169  delay(150);
170
171   tone(10, 349.23, 100);
172  delay(150);
173   tone(10, 349.23, 150);
174  delay(700);
175
176
177   tone(10, 523.25, 200);
178  delay(700);
179   tone(10, 466.16, 200);
180  delay(700);
181
182   tone(10, 415.3, 200);
183  delay(700);
184   tone(10, 392, 200);
185
186   delay(700);
187
188   tone(10, 349.23, 100);
189  delay(150);
190   tone(10, 349.23, 100);
191  delay(150);
192
193   tone(10, 349.23, 100);
194   delay(150);
195  
196 
197   tone(10, 523.25, 2000);
198
199  delay(2000);
200   tone(10, 466.16, 2000);
201   delay(2000);
202   tone(10, 415.30,
203  2000);
204 delay(2000);
205   tone(10, 392, 2000);
206  delay(2000);
207}
208

#define trigPin 13

#define echoPin 12

#define led 10

void
  setup() { 
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin,
  INPUT);
  pinMode(led, OUTPUT);
}

void loop(){ 
  long duration,
  distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  

  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);

  digitalWrite(trigPin,
  LOW);
  
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2)
  / 29.1;

  if (distance < 10){
    Countdown();
    Wait();
    Song();
      
    
  }
  else {
  Wait();
  }
  Serial.print(distance);


  Serial.println(" cm");

  delay(125);

} 

void playSound()
  {
    digitalWrite(led,HIGH);
    delay(100);
    digitalWrite(led,LOW);

    delay(100);
 
}

void Countdown() {
   tone(10, 2000, 100);

  delay(900);
   tone(10, 2000, 100);
  delay(900);
   tone(10, 2000, 100);

  delay(900);
   tone(10, 3000, 1000);
  delay(125);
}

void Wait()
  {
delay(100);
}


void Song() {
  //Verse
  tone(10, 523.25,
  100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);
  tone(10,
  523.25, 100);
  delay(150);
  tone(10, 523.25, 100);
  delay(150);

  tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);

  tone(10, 466.61, 100);
  delay(150);
  tone(10, 466.61, 100);
  delay(150);

  tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);

  tone(10, 415.3, 100);
  delay(150);
  tone(10, 415.3, 100);
  delay(150);

  tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);

   tone(10, 392, 100);
  delay(150);
   tone(10, 392, 100);
  delay(150);

   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);

   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);

   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);

   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);
//Chorus

   tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);

   tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);
 delay(700);


  tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);

   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(700);

   tone(10, 311.13, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);

   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 150);
  delay(700);


   tone(10, 523.25, 200);
  delay(700);
   tone(10, 466.16, 200);
  delay(700);

   tone(10, 415.3, 200);
  delay(700);
   tone(10, 392, 200);

   delay(700);

   tone(10, 349.23, 100);
  delay(150);
   tone(10, 349.23, 100);
  delay(150);

   tone(10, 349.23, 100);
   delay(150);
  
 
   tone(10, 523.25, 2000);

  delay(2000);
   tone(10, 466.16, 2000);
   delay(2000);
   tone(10, 415.30,
  2000);
 delay(2000);
   tone(10, 392, 2000);
  delay(2000);
}

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set_up_leKgCa1WG5.PNG

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