電位器控制16個LED燈數目

void setup()
{ pinMode(22, OUTPUT); pinMode(23, OUTPUT); pinMode(24, OUTPUT); pinMode(25, OUTPUT); pinMode(26, OUTPUT); pinMode(27, OUTPUT); pinMode(28, OUTPUT); pinMode(29, OUTPUT); pinMode(30, OUTPUT); pinMode(31, OUTPUT); pinMode(32, OUTPUT); pinMode(33, OUTPUT); pinMode(34, OUTPUT); pinMode(35, OUTPUT); pinMode(36, OUTPUT); pinMode(37, OUTPUT); pinMode(A0, INPUT); Serial.begin(9600);}
void loop(){ Serial.println(analogRead(A0)); if (analogRead(A0) < 55) { digitalWrite(22, HIGH); digitalWrite(23, LOW); digitalWrite(24, LOW); digitalWrite(25, LOW); digitalWrite(26, LOW); digitalWrite(27, LOW); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 56 && analogRead(A0) <= 110) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, LOW); digitalWrite(25, LOW); digitalWrite(26, LOW); digitalWrite(27, LOW); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 111 && analogRead(A0) <= 165) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, LOW); digitalWrite(26, LOW); digitalWrite(27, LOW); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 166 && analogRead(A0) <= 220) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, LOW); digitalWrite(27, LOW); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 221 && analogRead(A0) <= 275) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, LOW); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 276 && analogRead(A0) <= 330) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, LOW); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 331 && analogRead(A0) <= 385) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, LOW); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 386 && analogRead(A0) <= 440) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, LOW); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 441 && analogRead(A0) <= 495) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, LOW); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 496 && analogRead(A0) <= 550) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, LOW); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 551 && analogRead(A0) <= 605) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, LOW); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 606 && analogRead(A0) <= 660) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, HIGH); digitalWrite(34, LOW); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 661 && analogRead(A0) <= 715) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, HIGH); digitalWrite(34, HIGH); digitalWrite(35, LOW); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 716 && analogRead(A0) <= 770) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, HIGH); digitalWrite(34, HIGH); digitalWrite(35, HIGH); digitalWrite(36, LOW); digitalWrite(37, LOW); } if (analogRead(A0) >= 771 && analogRead(A0) <= 825) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, HIGH); digitalWrite(34, HIGH); digitalWrite(35, HIGH); digitalWrite(36, HIGH); digitalWrite(37, LOW); } if (analogRead(A0) >= 826) { digitalWrite(22, HIGH); digitalWrite(23, HIGH); digitalWrite(24, HIGH); digitalWrite(25, HIGH); digitalWrite(26, HIGH); digitalWrite(27, HIGH); digitalWrite(28, HIGH); digitalWrite(29, HIGH); digitalWrite(30, HIGH); digitalWrite(31, HIGH); digitalWrite(32, HIGH); digitalWrite(33, HIGH); digitalWrite(34, HIGH); digitalWrite(35, HIGH); digitalWrite(36, HIGH); digitalWrite(37, HIGH); } delay(10); // Delay a little bit to improve simulation performance}

/* 一次讀取類比值：現在 sensorValue 只會讀取一次，然後用這個值來控制後續的輸出。簡化的引腳管理：所有的數位引腳都存儲在 pins[] 陣列中，這樣就可以通過迴圈來批量處理，設置對應數量的引腳為 HIGH。數值映射：使用 map() 函數將 sensorValue（範圍 0 到 875）映射為要設為 HIGH 的引腳數量，這樣可以簡化邏輯並增加程式的靈活性。*/
const int pins[] = {22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37};const int numPins = sizeof(pins) / sizeof(pins[0]);
void setup() {  // 設定所有引腳為 OUTPUT 模式  for (int i = 0; i < numPins; i++) {    pinMode(pins[i], OUTPUT);  }   pinMode(A0, INPUT);  Serial.begin(9600);}
void loop() {  int sensorValue = analogRead(A0); // 讀取 A0 的類比值  Serial.println(sensorValue); // 顯示讀取的值
  // 預設先將所有引腳設為 LOW  for (int i = 0; i < numPins; i++) {    digitalWrite(pins[i], LOW);  }
  // 根據類比值設定 HIGH 的引腳數量  int highPins = map(sensorValue, 0, 875, 0, numPins);
  // 設定相應數量的引腳為 HIGH  for (int i = 0; i < highPins; i++) {    digitalWrite(pins[i], HIGH);  }
  delay(10); // 延遲，提升模擬性能}

/*蜂鳴器控制：新增了 buzzerPin 來控制蜂鳴器，這裡使用 A2 接腳。當 LED 有變化時，蜂鳴器會發出對應頻率的聲音。控制蜂鳴器發聲：在 loop() 中，根據 highPins（點亮的 LED 數量）來決定蜂鳴器的行為：如果有 LED 被點亮（即 highPins > 0），蜂鳴器會發出 1000 Hz 的音調。如果沒有 LED 被點亮（即 highPins == 0），蜂鳴器會停止發聲。tone() 與 noTone()：tone(buzzerPin, 1000)：使蜂鳴器發出 1000 Hz 的音調，這個音調可以根據需要調整。noTone(buzzerPin)：停止蜂鳴器發聲。const int pins[] = {22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37};const int numPins = sizeof(pins) / sizeof(pins[0]);const int buzzerPin = A2; // 蜂鳴器接腳*/
void setup() {  for (int i = 0; i < numPins; i++) {    pinMode(pins[i], OUTPUT);  }
  pinMode(A0, INPUT);  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600);}
void loop() {  int sensorValue = analogRead(A0);  Serial.println(sensorValue);
  // 將類比值映射成亮燈數（0 ~ 16）  int highPins = map(sensorValue, 0, 850, 0, numPins);
  // 控制 LED  for (int i = 0; i < numPins; i++) {    digitalWrite(pins[i], i < highPins ? HIGH : LOW);  }
  // 控制蜂鳴器：根據亮燈數決定蜂鳴器的嗶嗶節奏  if (highPins > 0) {    // 計算蜂鳴器嗶聲的頻率（LED 越多，間隔越短）    int beepDelay = map(highPins, 1, numPins, 100, 10); // 範圍：100ms ~ 10ms
    tone(buzzerPin, 1000); // 發出 1000 Hz 聲音    delay(beepDelay); // 嗶~    noTone(buzzerPin); // 停止聲音    delay(beepDelay); // 間隔  } else {    noTone(buzzerPin); // 沒有亮燈時不發聲    delay(50); // 小延遲  }}

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