使用1个按键、1个LED灯和1个喇叭，设计一个利用按键控制喇叭声响和灯亮灭的作品（英文名为：ButtonLedTone），具体要求如下： Ÿ按一次按键，灯亮；再按一次按键，灯灭；一直如此循环； Ÿ每次按下按键，喇叭都会响一下（约100毫秒），声音要清脆响亮； Ÿ要做按键去抖动功能，确保对按键状态变化的准确判断。

Sure, I can answer your question. Here is the code for the ButtonLedTone project:

const int buttonPin = 2; // the pin number of the button
const int ledPin = 13; // the pin number of the LED
const int tonePin = 9; // the pin number of the speaker

int buttonState = 0; // variable for storing the button state
int ledState = LOW; // variable for storing the LED state

void setup() {
  pinMode(buttonPin, INPUT_PULLUP); // set the button pin as input with pull-up resistor
  pinMode(ledPin, OUTPUT); // set the LED pin as output
  pinMode(tonePin, OUTPUT); // set the speaker pin as output
}

void loop() {
  int reading = digitalRead(buttonPin); // read the button state
  if (reading != buttonState) { // check if the button state has changed
    delay(10); // debounce the button
    reading = digitalRead(buttonPin); // read the button state again
    if (reading != buttonState) { // check if the button state has really changed
      buttonState = reading; // update the button state
      if (buttonState == LOW) { // check if the button is pressed
        ledState = !ledState; // toggle the LED state
        digitalWrite(ledPin, ledState); // update the LED state
        tone(tonePin, 1000, 100); // play a tone for 100 ms
      }
    }
  }
}

This code uses a button, an LED, and a speaker to create a project called ButtonLedTone. When you press the button, the LED turns on and the speaker plays a short tone. When you press the button again, the LED turns off and the speaker plays another tone. This cycle repeats every time you press the button. The code also includes a debounce function to ensure accurate button state detection.