基于LinkIt one的Arduino编程学习-按键操作

const int PIN_KEY_CARD   = 2;
const int PIN_KEY_RETURN = 3;

// LinkIt one SDK没有实现该方法，这里需要手动实现
int digitalPinToInterrupt(int pin) {
int num = -1;
switch(pin) {
case PIN_KEY_CARD:
num = 0;
break;
case PIN_KEY_RETURN:
num = 1;
break;
}
return num;
}

void setup() {
Serial.begin(9600);
pinMode(PIN_KEY_CARD, INPUT_PULLUP);
pinMode(PIN_KEY_RETURN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(PIN_KEY_CARD), onCardKeyEvent, FALLING);//当int.0电平改变时,触发中断函数blink
attachInterrupt(digitalPinToInterrupt(PIN_KEY_RETURN), onReturnKeyEvent, FALLING);//当int.0电平改变时,触发中断函数blink
}

void loop() {
// put your main code here, to run repeatedly:
Serial.println("...");
delay(1000 * 1);
}
void onCardKeyEvent() {
Serial.println("onCardKeyEvent");
}

void onReturnKeyEvent() {
Serial.println("onReturnKeyEvent");
}

// Detect the falling edge

// Include the Bounce2 library found here :
// https://github.com/thomasfredericks/Bounce-Arduino-Wiring #include <Bounce2.h>

// Instantiate a Bounce object :
Bounce debouncer1 = Bounce();
// Instantiate a Bounce object :
Bounce debouncer2 = Bounce();

const int PIN_KEY_CARD   = 2;
const int PIN_KEY_RETURN = 3;

void setup() {
Serial.begin(9600);
pinMode(PIN_KEY_CARD, INPUT_PULLUP);
pinMode(PIN_KEY_RETURN, INPUT_PULLUP);
// After setting up the button, setup the Bounce instance :
debouncer1.attach(PIN_KEY_CARD);
debouncer1.interval(50); // interval in ms
// After setting up the button, setup the Bounce instance :
debouncer2.attach(PIN_KEY_RETURN);
debouncer2.interval(50); // interval in ms
}

void loop() {
//  Serial.println("loop");
// Update the Bounce instance :
debouncer1.update();
debouncer2.update();

// Call code if Bounce fell (transition from HIGH to LOW) :
if ( debouncer1.fell() ) {
Serial.println("debouncer1");
}
// Call code if Bounce fell (transition from HIGH to LOW) :
if ( debouncer2.fell() ) {
Serial.println("debouncer2");
}
}
void onCardKeyEvent() {
Serial.println("onCardKeyEvent");
delay(50); // 50ms works for most switches - adjustable
}

void onReturnKeyEvent() {
Serial.println("onReturnKeyEvent");
delay(50); // 50ms works for most switches - adjustable
}