Buzzer and button (Processing + Arduino)

Projects Programming
1

Hello, I want to make something such that when a button is pressed, the piezo buzzer outputs a sound (like a car horn). How do I proceed to write a code for that in both processing and arduino? I'm still learning about serial communication between processing and arduino, so any help will be greatly appreciated :slight_smile:

2

Forget the interaction between Arduino and Processing for now. Can you control the buzzer just using the Arduino ?

Is the buzzer active, ie you supply a voltage and it makes a noise, or is it passive, ie you need to turn the voltage to the buzzer on and off at the frequency required in order to make a noise ?

3 
byte pinBuzzer = 10;
byte pinBut    = A1;

void setup ()
{
  Serial.begin (115200);
  
  pinMode (pinBuzzer, OUTPUT);
  pinMode (pinBut,    INPUT_PULLUP);
}

void loop ()
{
#if 1
    digitalWrite (pinBuzzer,   digitalRead (pinBut));
#else
    digitalWrite (pinBuzzer, ! digitalRead (pinBut));
#endif
}
4

What hardware are you using?

5

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