LED Combination Project with Satisfying Sounds of Buzzer

1/***********************************************************
2File name:LED_combination_experiment.ino
3Description:   With three buttons, three lamps and one buzzer, 
4press the different buttons  to make the corresponding lamp light 
5up, along with the buzzer sounds at different  frequencies. 
6Made by: ARSH RAJ
7Date: 4/08/2022 
8***********************************************************/
9#define  LED1 3       //definition led_1 I/O number is 3     
10#define KEY1 2       //definition  key_1 I/O number is 2
11
12#define LED2 5      //definition led_2 I/O number is  5
13#define KEY2 4      //definition key_2 I/O number is 4
14
15#define LED3  10
16#define KEY3 9
17
18#define beepPin 8
19
20int KEY_NUM1 = 0;    //key_1  value (The key value stores the variable, not equal to 1 indicates that the key  is pressed)
21int KEY_NUM2 = 0;    //key_2 value
22int KEY_NUM3 = 0;
23
24void  setup()
25{
26  pinMode(LED1,OUTPUT);              //definition led_1 I/O is OUTPUT
27  pinMode(KEY1,INPUT_PULLUP);        //definition led_1 I/O is INPUT_PULLUP
28  pinMode(LED2,OUTPUT);
29  pinMode(KEY2,INPUT_PULLUP);  
30  pinMode(LED3,OUTPUT);
31  pinMode(KEY3,INPUT_PULLUP);  
32  
33  Serial.begin(9600);
34}
35
36void  loop()
37{
38  ScanKey1();//Key scan program, when the button is pressed, the  subroutine will modify the value of KEY_NUM
39  ScanKey2();
40  ScanKey3();
41}
42
43//Button  1 Scanner
44void ScanKey1()            
45{
46  KEY_NUM1 = 0;                       //Clear  variable
47  if(digitalRead(KEY1) == LOW)         //There is a key press
48  {
49    beep1();
50    delay(20);                        //Delayed debounce
51    if(digitalRead(KEY1)  == LOW)       //There is a key press
52    {
53      KEY_NUM1 = 1;                   //Variable  set to 1
54      while(digitalRead(KEY1) == LOW); //Wait for the keys to release  hands
55    }
56    Serial.println(digitalRead(LED1));//Serial output current  LED status
57  }
58
59  if(KEY_NUM1 == 1)              //Is the button pressed
60  {   
61    digitalWrite(LED1,!digitalRead(LED1));    //LED status flip
62  }
63  
64}
65
66//Button 2 scanner
67void ScanKey2()         
68{
69  KEY_NUM2  = 0;           
70  if(digitalRead(KEY2) == LOW)      
71  {
72    beep2();
73    delay(20);          
74    if(digitalRead(KEY2) == LOW)    
75    {
76      KEY_NUM2  = 1;       
77      while(digitalRead(KEY2) == LOW);  
78    }
79      Serial.println(digitalRead(LED2));
80  }
81
82  if(KEY_NUM2 == 1)
83  {
84    digitalWrite(LED2, !digitalRead(LED2));  
85  }
86}
87
88//Button 3 scanner
89void ScanKey3()         
90{
91  KEY_NUM3  = 0;           
92  if(digitalRead(KEY3) == LOW)      
93  {
94    beep3();
95    delay(20);          
96    if(digitalRead(KEY3) == LOW)    
97    {
98      KEY_NUM3  = 1;       
99      while(digitalRead(KEY3) == LOW);  
100    }
101      Serial.println(digitalRead(LED3));
102  }
103
104  if(KEY_NUM3 == 1)
105  {
106    digitalWrite(LED3, !digitalRead(LED3));  
107  }
108}
109
110void beep1()//Set buzzer frequency
111{
112  tone (beepPin,300);
113  delay(200);
114  noTone(beepPin);
115  }
116  void beep2()
117{
118  tone (beepPin,900);
119  delay(200);
120  noTone(beepPin);
121  }
122  void beep3()
123{
124  tone (beepPin,1400);
125  delay(200);
126  noTone(beepPin);
127  }
128

1/***********************************************************
2File name:LED_combination_experiment.ino
3Description:
4   With three buttons, three lamps and one buzzer, 
5press the different buttons
6  to make the corresponding lamp light 
7up, along with the buzzer sounds at different
8  frequencies. 
9Made by: ARSH RAJ
10Date: 4/08/2022 
11***********************************************************/
12#define
13  LED1 3       //definition led_1 I/O number is 3     
14#define KEY1 2       //definition
15  key_1 I/O number is 2
16
17#define LED2 5      //definition led_2 I/O number is
18  5
19#define KEY2 4      //definition key_2 I/O number is 4
20
21#define LED3
22  10
23#define KEY3 9
24
25#define beepPin 8
26
27int KEY_NUM1 = 0;    //key_1
28  value (The key value stores the variable, not equal to 1 indicates that the key
29  is pressed)
30int KEY_NUM2 = 0;    //key_2 value
31int KEY_NUM3 = 0;
32
33void
34  setup()
35{
36  pinMode(LED1,OUTPUT);              //definition led_1 I/O is OUTPUT
37
38  pinMode(KEY1,INPUT_PULLUP);        //definition led_1 I/O is INPUT_PULLUP
39
40  pinMode(LED2,OUTPUT);
41  pinMode(KEY2,INPUT_PULLUP);  
42  pinMode(LED3,OUTPUT);
43
44  pinMode(KEY3,INPUT_PULLUP);  
45  
46  Serial.begin(9600);
47}
48
49void
50  loop()
51{
52  ScanKey1();//Key scan program, when the button is pressed, the
53  subroutine will modify the value of KEY_NUM
54  ScanKey2();
55  ScanKey3();
56}
57
58//Button
59  1 Scanner
60void ScanKey1()            
61{
62  KEY_NUM1 = 0;                       //Clear
63  variable
64  if(digitalRead(KEY1) == LOW)         //There is a key press
65  {
66
67    beep1();
68    delay(20);                        //Delayed debounce
69    if(digitalRead(KEY1)
70  == LOW)       //There is a key press
71    {
72      KEY_NUM1 = 1;                   //Variable
73  set to 1
74      while(digitalRead(KEY1) == LOW); //Wait for the keys to release
75  hands
76    }
77    Serial.println(digitalRead(LED1));//Serial output current
78  LED status
79  }
80
81  if(KEY_NUM1 == 1)              //Is the button pressed
82
83  {   
84    digitalWrite(LED1,!digitalRead(LED1));    //LED status flip
85  }
86
87  
88}
89
90//Button 2 scanner
91void ScanKey2()         
92{
93  KEY_NUM2
94  = 0;           
95  if(digitalRead(KEY2) == LOW)      
96  {
97    beep2();
98
99    delay(20);          
100    if(digitalRead(KEY2) == LOW)    
101    {
102      KEY_NUM2
103  = 1;       
104      while(digitalRead(KEY2) == LOW);  
105    }
106      Serial.println(digitalRead(LED2));
107
108  }
109
110  if(KEY_NUM2 == 1)
111  {
112    digitalWrite(LED2, !digitalRead(LED2));
113  
114  }
115}
116
117//Button 3 scanner
118void ScanKey3()         
119{
120  KEY_NUM3
121  = 0;           
122  if(digitalRead(KEY3) == LOW)      
123  {
124    beep3();
125
126    delay(20);          
127    if(digitalRead(KEY3) == LOW)    
128    {
129      KEY_NUM3
130  = 1;       
131      while(digitalRead(KEY3) == LOW);  
132    }
133      Serial.println(digitalRead(LED3));
134
135  }
136
137  if(KEY_NUM3 == 1)
138  {
139    digitalWrite(LED3, !digitalRead(LED3));
140  
141  }
142}
143
144void beep1()//Set buzzer frequency
145{
146  tone (beepPin,300);
147
148  delay(200);
149  noTone(beepPin);
150  }
151  void beep2()
152{
153  tone (beepPin,900);
154
155  delay(200);
156  noTone(beepPin);
157  }
158  void beep3()
159{
160  tone (beepPin,1400);
161
162  delay(200);
163  noTone(beepPin);
164  }
165