Debouncing-Two-Buttons

// Define Variables
const int output = 5;
const int output2 = 6;
const int button = 3;
const int button2 = 2;

boolean lastButton = LOW;  // Contains last button state
boolean currentButton = LOW; // Contains current button state
boolean output_state = LOW; // Present state of output true/on false/off

boolean lastButton2 = LOW;  // Contains last button2 state
boolean currentButton2 = LOW; // Contains current button2 state
boolean output_state2 = LOW; // Present state of ouput2 true/on false/off

void setup()
{
  // Define pin types
  pinMode(output, OUTPUT);
  pinMode(output2, OUTPUT);
  pinMode(button, INPUT);
  pinMode(button2, INPUT);
  }

void loop()
{
  // Set the current button state with the debounced value
  currentButton = debounce(lastButton, button);

  if (lastButton == LOW && currentButton == HIGH) // If button was pressed
  {
    output_state = !output_state; // toggle the output value
   }

lastButton = currentButton; // Change the state of the button

digitalWrite(output, output_state); // Set the state of the output


// Set the current button state with the debounced value
  currentButton2 = debounce(lastButton2, button2);

  if (lastButton2 == LOW && currentButton2 == HIGH) // If button2 was pressed
  {
    output_state2 = !output_state2; // toggle the output2 value
   }

lastButton2 = currentButton2; // Change the state of the button

digitalWrite(output2, output_state2); // Set the state of the output


}

//-------------------------------------------------------------------------------------
/* Debouncing Function.
 * Pass in the button number and previous state of the button as an input argumnets.
 * Return as an output argument the current debounced state of the button.
*/

boolean debounce(boolean last, byte sw)
{
  boolean current = digitalRead(sw);  // Read the state of the button
  if (last != current) // If values are different
  {
    delay(5);
    current = digitalRead(sw); // Read the state of the button again
  }
    return current;
    }