please show elegoo arduino board setup using a passive buzzer. heres the code below:

#define F_CPU 16000000UL // CPU Frequency

#include

#include

volatile uint8_t notePlaying = 0;

void setup() {

DDRB |= (1 << PB6); // Set PB6 as output

TCCR1A = 0; // Clear Timer1 registers

TCCR1B = 0;

TIMSK1 = 0;

OCR1A = 0;

}

void playNote(uint16_t frequency) {

if (notePlaying) {

TCCR1B = 0; // Stop the timer

notePlaying = 0;

}

else {

// Calculate the prescaler value

uint16_t prescaler = 1;

while ((F_CPU / (prescaler * frequency * 2)) > 65535) {

prescaler <<= 1;

}

// Configure Timer1

TCCR1B = (1 << WGM12) | (prescaler & 0x07); // Mode 4, prescaler

OCR1A = (F_CPU / (prescaler * frequency * 2)) - 1; // Output compare value

TIMSK1 = (1 << OCIE1A); // Enable compare match interrupt

notePlaying = 1;

// Start the timer

TCNT1 = 0;

TCCR1B |= (1 << CS10) | ((prescaler >> 1) & 0x03); // Start timer

}

}

ISR(TIMER1_COMPA_vect) {

PORTB ^= (1 << PB6); // Toggle PB6 state

}

void loop() {

if (Serial.available() > 0) {

char key = Serial.read();

switch (key) {

case 'A':

playNote(440);

break;

case 'B':

playNote(494);

break;

case 'C':

playNote(523);

break;

case 'D':

playNote(587);

break;

case 'E':

playNote(659);

break;

case 'F':

playNote(698);

break;

case 'G':

playNote(784);

break;

case 'q':

TCCR1B = 0; // Stop the timer

notePlaying = 0;

break;

}

}

}