SimpleSiren

1/*
2  SimpleSiren
3
4  Description:
5  Haven't we all used horns   / sirens. Just a touch on switch and siren blows.
6  Just a tap back and its stops   honking. This library provides just this.
7  A bare minimum framework simulating   a siren functioning.
8
9  A buzzer which is connected to digital pin 13 is blown,
10   when pressing a pushbutton attached to pin 2.
11
12  The circuit:
13  - Buzzer   attached from pin 13 to ground
14  - pushbutton attached to pin 2 from +5V
15   - 10K resistor attached to pin 2 from ground
16
17  - Note: on most Arduinos   do NOT come with a Buzzer on the board
18    hence has to be attached to pin 13.
19
20   created March 2020,
21  by Manthan Admane
22
23*/
24
25// constants won't   change. They're used here to set pin numbers:
26const int buttonPin = 2;     //   the number of the pushbutton pin
27const int buzzerPin =  13;      // the number   of the Buzzer pin
28
29// variables will change:
30int buttonState = 0;         //   variable for reading the pushbutton status
31
32void setup() {
33  // initialize   the Buzzer pin as an output:
34  pinMode(buzzerPin, OUTPUT);
35  // initialize   the pushbutton pin as an input:
36  pinMode(buttonPin, INPUT);
37}
38
39void   loop() {
40  // read the state of the pushbutton value:
41  buttonState = digitalRead(buttonPin);
42
43   // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
44   if (buttonState == HIGH) {
45    // turn Buzzer on:
46    digitalWrite(buzzerPin,   HIGH);
47  } else {
48    // turn Buzzer off:
49    digitalWrite(buzzerPin, LOW);
50   }
51}
52

1/*
2  SimpleSiren
3
4  Description:
5  Haven't we all used horns  / sirens. Just a touch on switch and siren blows.
6  Just a tap back and its stops  honking. This library provides just this.
7  A bare minimum framework simulating  a siren functioning.
8
9  A buzzer which is connected to digital pin 13 is blown,
10  when pressing a pushbutton attached to pin 2.
11
12  The circuit:
13  - Buzzer  attached from pin 13 to ground
14  - pushbutton attached to pin 2 from +5V
15  - 10K resistor attached to pin 2 from ground
16
17  - Note: on most Arduinos  do NOT come with a Buzzer on the board
18    hence has to be attached to pin 13.
19
20  created March 2020,
21  by Manthan Admane
22
23*/
24
25// constants won't  change. They're used here to set pin numbers:
26const int buttonPin = 2;     //  the number of the pushbutton pin
27const int buzzerPin =  13;      // the number  of the Buzzer pin
28
29// variables will change:
30int buttonState = 0;         //  variable for reading the pushbutton status
31
32void setup() {
33  // initialize  the Buzzer pin as an output:
34  pinMode(buzzerPin, OUTPUT);
35  // initialize  the pushbutton pin as an input:
36  pinMode(buttonPin, INPUT);
37}
38
39void  loop() {
40  // read the state of the pushbutton value:
41  buttonState = digitalRead(buttonPin);
42
43  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
44  if (buttonState == HIGH) {
45    // turn Buzzer on:
46    digitalWrite(buzzerPin,  HIGH);
47  } else {
48    // turn Buzzer off:
49    digitalWrite(buzzerPin, LOW);
50  }
51}
52