## 課程學習記錄

const int SOUND_SENSOR_PIN = A0;  // 模拟量输出连接到A0
const int LED_PIN = 13;  // LED连接到数字引脚13

void setup() {
  // 初始化串口通信
  Serial.begin(9600);
  
  // 设置LED引脚为输出模式
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  // 读取模拟量输出
  int soundValue = analogRead(SOUND_SENSOR_PIN);
  Serial.print("Sound Value: ");
  Serial.println(soundValue);

  // 根据声音大小判断是否超过阈值
  if (soundValue > 500) {
    // 声音强度大于阈值，点亮LED
    digitalWrite(LED_PIN, HIGH);
    Serial.println("LED ON");
  } else {
    // 声音强度低于阈值，关闭LED
    digitalWrite(LED_PIN, LOW);
    Serial.println("LED OFF");
  }

  delay(1000);  // 延迟1秒
}

const int SOUND_SENSOR_PIN = A0;  // 模拟量输出连接到A0
const int LED_PIN = 13;  // LED连接到数字引脚13

void setup() {
  // 初始化串口通信
  Serial.begin(9600);
  
  // 设置LED引脚为输出模式
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  // 读取模拟量输出
  int soundValue = analogRead(SOUND_SENSOR_PIN);
  Serial.print("Sound Value: ");
  Serial.println(soundValue);

  // 根据声音大小判断是否超过阈值
  if (soundValue > 500) {
    // 声音强度大于阈值，点亮LED
    digitalWrite(LED_PIN, HIGH);
    Serial.println("LED ON");
  } else {
    // 声音强度低于阈值，关闭LED
    digitalWrite(LED_PIN, LOW);
    Serial.println("LED OFF");
  }

  delay(1000);  // 延迟1秒
}

[⬇️程式碼來源](https://home.gamer.com.tw/creationDetail.php?sn=4768572&fbclid=IwAR0qKCWWUISAtQrdHUtxaHUFJ96wgA2DBxc_MT9VrX5MK7A8iwLElme8jEM)

#include "Arduino.h"
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

SoftwareSerial mySoftwareSerial(11, 10); // RX, TX
DFRobotDFPlayerMini myDFPlayer;

void setup()
{
  mySoftwareSerial.begin(9600);
  Serial.begin(115200);
  
  Serial.println();
  Serial.println(F("DFRobot DFPlayer Mini Demo"));
  Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));
  
  if (!myDFPlayer.begin(mySoftwareSerial)) {  //Use softwareSerial to communicate with mp3.
    Serial.println(F("Unable to begin:"));
    Serial.println(F("1.Please recheck the connection!"));
    Serial.println(F("2.Please insert the SD card!"));
    while(true){
      delay(0); // Code to compatible with ESP8266 watch dog.
    }
  }
  Serial.println(F("DFPlayer Mini online."));
  
  myDFPlayer.volume(10);  //Set volume value. From 0 to 30
  myDFPlayer.play(1);  //Play the first mp3
}

void loop()
{

}

## 專案進度
喜獲一些新道具！

[Sound_Sensor](https://www.waveshare.net/wiki/Sound_Sensor)