“欧姆龙按键开关模块”的版本间的差异

/*
  Button_switch
  按键开关：按一次按键，点亮LED，再按一次按键，熄灭LED
  This example code is in the public domain.
  www.yfrobot.com
*/
 
// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  10;      // the number of the LED pin
boolean ledState = false;    // 记录LED状态
boolean buttonState = true;  // 记录按键状态
 
void setup ()
{
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(ledPin, OUTPUT);
}
 
void loop()
{
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);
 
  // 等待按键按下
  while (buttonState == HIGH) {
    buttonState = digitalRead(buttonPin);
  }
  // 当按键按下时，点亮或熄灭LED
  if (ledState == true) {
    digitalWrite(ledPin, LOW);
    ledState = !ledState;
  } else {
    digitalWrite(ledPin, HIGH);
    ledState = !ledState;
  }
  delay(500);
}

//button test
 
int buzzerPin = 6;
int buttonPin[5] = {8,9,10,11,12};
int buttonState = 0;
int buttonVal[5];
 
int notes_DL[7] = {147,165,175,196,221,248,278};
int notes_D[7] = {294,330,350,399,441,495,556};
int notes_DH[7] = {589,667,700,786,882,990,1112};
 
void setup ()
{
  pinMode(buzzerPin,OUTPUT);  
}
 
void loop()
{
  for(int i = 0;i < 5;i++){
   if(digitalRead(buttonPin[i]) == LOW){
     buttonState = buttonPin[i];
   }
  }  
 switch(buttonState){
   case 8: makeSound(1); break;
   case 9: makeSound(2); break;
   case 10: makeSound(3); break;
   case 11: makeSound(4); break;
   case 12: makeSound(5); break;
 }
 buttonState = 0;
} 
 
// s value: 1 - 7 
void makeSound(int s){
  tone(buzzerPin,notes_D[s-1]);
  delay(400);
  noTone(buzzerPin);
}