Make an Active Buzzer Beep

[jacklythgoee]

Hi all,

im a bit confused on how i can get my buzzer to beep however many times from an integer input.

int num;
int buzzPin = 8;
String msg = "Please input your number: ";

void setup()
{
Serial.begin(9600);
pinMode(buzzPin,OUTPUT);
}

void loop()
{
Serial.println(msg);
while(Serial.available()==0);
{

}
num = Serial.parseInt();

}

[ToddL1962]

Please use a code block to post your code.

If the only functionality you need is to beep the buzzer then just use a for loop and delay() calls to time the beep. Make your best attempt and we can help.

[jacklythgoee]

ToddL1962:
Please use a code block to post your code.

If the only functionality you need is to beep the buzzer then just use a for loop and delay() calls to time the beep. Make your best attempt and we can help.

i want to be able to input a number through the serial monitor, and it beep that many times. I used a for loop and it would beep constantly even with delays in place.

[ToddL1962]

jacklythgoee:
i want to be able to input a number through the serial monitor, and it beep that many times. I used a for loop and it would beep constantly even with delays in place.

Then please post your attempt and we can find the issue.

[niall895]

To get the value of the Serial input, you can use something like this: (here's a page with more details)
In your code you are only starting to read if there is nothing there (Serial.available()==0)

This will take the number from the serial input when it is detected (more than 0) and pass it to the function called "buzzerBeep"

  if (Serial.available() > 0) {
    buzzerBeep(Serial.parseInt());
  }

Here is the function:

void buzzerBeep(int beeps) {
  for(int x = 0; x < beeps; x++){
    digitalWrite(buzzPin, HIGH);
    delay(1000);
    digitalWrite(buzzPin, LOW);
    delay(1000);
  }
}

What that does is take the number of beeps from the serial input, and turn the buzzer on and off again that many times with a one second delay in between.

Here's the final code:

int number;
int buzzPin = 8;
String msg = "Please input your number: ";
void setup() {
  Serial.begin(9600);
  pinMode(buzzPin, OUTPUT);
  Serial.println(msg);
}
void loop() {
  if (Serial.available() > 0) {
    buzzerBeep(Serial.parseInt());
  }
}
void buzzerBeep(int beeps) {
  for(int x = 0; x < beeps; x++){
    digitalWrite(buzzPin, HIGH);
    delay(1000);
    digitalWrite(buzzPin, LOW);
    delay(1000);
  }
}

Do note this doesn't repeat the question for simplicity, it only asks it once in the setup.
I hope this helps