#define LED1 15
#define LED2 2 
#define LED3 4  
#define LED4 5  
#define LED1 15
#define LED2 2  
#define LED3 4  
#define LED4 16 
#define LED5 17 
#define Buzzer 32 
#define PushButton1 12 
#define PushButton2 13 
void setup() {
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
  pinMode(Buzzer, OUTPUT);
  pinMode(PushButton1, INPUT_PULLUP);
  pinMode(PushButton2, INPUT_PULLUP);
}
void loop() {
  if (digitalRead(PushButton1) == 0) {
    digitalWrite(LED1, 1); delay(500);
    digitalWrite(LED2, 1); delay(500);
    digitalWrite(LED3, 1); delay(500);
    digitalWrite(LED4, 1); delay(500);
    digitalWrite(LED5, 1); delay(500);
    digitalWrite(LED1, 0);
    digitalWrite(LED2, 0);
    digitalWrite(LED3, 0);
    digitalWrite(LED4, 0);
    digitalWrite(LED5, 0);
  }
  if (digitalRead(PushButton2) == 0) {
    tone(Buzzer, 262, 500); delay(500);  // C
    tone(Buzzer, 294, 500); delay(500);  // D
    tone(Buzzer, 330, 500); delay(500);  // E
    tone(Buzzer, 349, 500); delay(500);  // F
    tone(Buzzer, 392, 500); delay(500);  // G
    tone(Buzzer, 440, 500); delay(500);  // A
    tone(Buzzer, 494, 500); delay(500);  // B
    tone(Buzzer, 523, 500); delay(500);  // C สูง
  }
}