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arduino Tinylab buttons handling in a debounce style
// This example code is based on http://www.arduino.cc/en/Tutorial/Debounce
boolean debug = true;
long debounceDelay = 50;
class LEDButton{
public:
int buttonPin = 0;
int buttonState = 0;
int lastButtonState = LOW;
int ledPin = 0;
int ledState = HIGH;
long lastDebounceTime = 0;
void CheckPush(){
int reading = digitalRead(this->buttonPin);
if (reading != this->lastButtonState) {
this->lastDebounceTime = millis();
}
if ((millis() - this->lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
// if the button state has changed:
if (this->buttonState != reading) {
if (debug && this->buttonPin == A5){
Serial.println("reading");
Serial.println(reading);
}
this->buttonState = reading;
// only toggle the LED if the new button state is HIGH
if (this->buttonState == HIGH) {
ChangeLEDState(!this->ledState);
}
}
}
this->lastButtonState = reading;
}
void Init(){
pinMode(this->buttonPin, INPUT);
pinMode(this->ledPin, OUTPUT);
digitalWrite(this->ledPin, this->ledState);
}
private:
void ChangeLEDState(int newState){
digitalWrite(this->ledPin, newState);
this->ledState = newState;
}
};
LEDButton* b1;
LEDButton* b2;
LEDButton* b3;
LEDButton* b4;
LEDButton* createButton(int buttonPin, int buttonState, int lastButtonState, int ledPin, int ledState){
LEDButton* b = new LEDButton();
b->buttonPin = buttonPin;
b->buttonState = buttonState;
b->lastButtonState = lastButtonState;
b->ledPin = ledPin;
b->ledState = ledState;
return b;
}
void setupButtons(){
b1 = createButton(9, 0, LOW, 13, HIGH);
b2 = createButton(8, 0, LOW, 12, HIGH);
b3 = createButton(A5, 0, LOW, 11, HIGH);
b4 = createButton(A5, 0, HIGH, 10, LOW);
b1->Init();
b2->Init();
b3->Init();
b4->Init();
}
void setup() {
if (debug){
Serial.begin(9600);
}
setupButtons();
}
void loop() {
b1->CheckPush();
b2->CheckPush();
b3->CheckPush();
b4->CheckPush();
}
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