Day3 Lab

const int LED=9; //The LED is connected to pin 9

const int BUTTON=2; //The Button is connected to pin 2

const int LED2=10; //The LED is connected to pin 10

const int BUTTON2=4; //The Button is connected to pin 3

boolean lastButton = LOW; //Variable containing the previous button state

boolean currentButton = LOW; //Variable containing the current button state

boolean ledOn = false; //The present state of the LED (on/off)

boolean lastButton2 = LOW; //Variable containing the previous button state

boolean currentButton2 = LOW; //Variable containing the current button state

boolean led2On = false; //The present state of the LED (on/off)

void setup()

{

 pinMode (LED, OUTPUT); //Set the LED pin as an output

 pinMode (BUTTON, INPUT); //Set button as input (not required)

  pinMode (LED2, OUTPUT); //Set the LED2 pin as an output

 pinMode (BUTTON2, INPUT); //Set button2 as input (not required)

}

/*

* Debouncing Function Pass it the previous button state,

* and get back the current debounced button state.

*/

boolean debounce(boolean last)

{

 boolean current = digitalRead(BUTTON);

 if (last != current) //if it's different…

 {

 delay(5); //wait 5ms

 current = digitalRead(BUTTON); //read it again

 return current; //return the current value

}

}

boolean deboucnce(boolean Last)

{

 boolean current2 = digitalRead(BUTTON2);//Read the button2 state

 if (Last != current2) //if it's different…

 {

  delay(5); // wait 5ms

  current2 = digitalRead(BUTTON2); //read it again

  return current2; //return the current value

}

}

void loop()

{

 currentButton = debounce(lastButton); //read debounced state

 if (lastButton == LOW && currentButton == HIGH) //if it was pressed...

 {

 ledOn = !ledOn; //toggle the LED value

 }

 lastButton = currentButton; //reset button value

 digitalWrite(LED, ledOn); //change the LED state

 {

 currentButton2 = debounce(lastButton2); //read debounced state

  if (lastButton2 == LOW && currentButton2 == HIGH) //if it was pressed...

{

  led2On =!led2On; // toggle the LED2 value

  }

 lastButton2 = currentButton2; //reset button value

  digitalWrite(LED2, led2On); //change the LED state

}

}