#include <Keypad.h>

const byte ROWS = 4; // Four rows
const byte COLS = 4; // Four columns
char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
byte rowPins[ROWS] = {2, 3, 4, 5}; // Connect to the row pinouts of the keypad
byte colPins[COLS] = {6, 7, 8, 9}; // Connect to the column pinouts of the keypad

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

const int ledPin = 9; // the pin number for the LED
const int ledPin1 = 8; // the pin number for the LED
const int ledPin2 = 7; // the pin number for the LED
const int ledPin3 = 6; // the pin number for the LED
const int ledPin4 = 5; // the pin number for the LED
const int ledPin5 = 4; // the pin number for the LED
const int ledPin6 = 3; // the pin number for the LED
const int ledPin7 = 2; // the pin number for the LED

//bool ledState = LOW; // current state of the LED

unsigned long buttonPressTime = 0; // time when the button was pressed
unsigned long buttonPressTime1 = 0; // time when the button was pressed
unsigned long buttonPressTime2 = 0; // time when the button was pressed
unsigned long buttonPressTime3 = 0; // time when the button was pressed

const long interval = 600; // duration to keep the LED on (milliseconds)
const long interval1 = 800; // duration to keep the LED on (milliseconds)
const long interval2 = 1000; // duration to keep the LED on (milliseconds)
const long interval3 = 1200; // duration to keep the LED on (milliseconds)


void setup() {
  //pinMode(ledPin, OUTPUT); // initialize the LED pin as an output
  /*pinMode(ledPin1, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin2, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin3, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin4, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin5, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin6, OUTPUT); // initialize the LED pin as an output
  pinMode(ledPin7, OUTPUT); // initialize the LED pin as an output*/
}

void loop() {
  char key = keypad.getKey(); // Check for a keypress
////////////////////////////////////////////////////////////////////////////////////////////
            // LF UP
  if ( key == '1' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin, HIGH); // Turn on the LED
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
  }
/*//////////////////////////////////////////////////////////////////////////////////////////
            // LF & RF UP
  if ( key == '2' != NO_KEY) { // If a key is pressed
 // Check if the LED should be on based on the button press time
    digitalWrite(ledPin, LOW); // Turn on the LED
    digitalWrite(ledPin1, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin, HIGH); // Turn off the LED
    digitalWrite(ledPin1, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // RF UP
  if ( key == '3' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin1, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin1, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // LF DOWN
  if ( key == '4' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin2, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin2, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // LF & RF DOWN
  if ( key == '5' != NO_KEY) { // If a key is pressed
 // Check if the LED should be on based on the button press time
    digitalWrite(ledPin2, LOW); // Turn on the LED
    digitalWrite(ledPin3, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin2, HIGH); // Turn off the LED
    digitalWrite(ledPin3, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // RF DOWN
  if ( key == '6' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin3, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin3, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // LR UP
  if ( key == '7' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin4, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin4, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // LR & RR UP
  if ( key == '8' != NO_KEY) { // If a key is pressed
 // Check if the LED should be on based on the button press time
    digitalWrite(ledPin4, LOW); // Turn on the LED
    digitalWrite(ledPin5, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin4, HIGH); // Turn off the LED
    digitalWrite(ledPin5, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // RR UP
  if ( key == '9' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin5, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin5, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // LR DOWN
  if ( key == '*' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin6, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin6, HIGH); // Turn off the LED
  }
//////////////////////////////////////////////////////////////////////////////////////////
            // LR & RR DOWN
  if ( key == '0' != NO_KEY) { // If a key is pressed
 // Check if the LED should be on based on the button press time
    digitalWrite(ledPin6, LOW); // Turn on the LED
    digitalWrite(ledPin7, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin6, HIGH); // Turn off the LED
    digitalWrite(ledPin7, HIGH); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // RR DOWN
  if ( key == '#' != NO_KEY) { // If a key is pressed 
  // Check if the LED should be on based on the button press time
    digitalWrite(ledPin7, LOW); // Turn on the LED
  } else {
    digitalWrite(ledPin7, HIGH); // Turn off the LED
  }*/
/*//////////////////////////////////////////////////////////////////////////////////////////
            // STANDARD HEIGHT
  if ( key == 'A' != NO_KEY) { // If a key is pressed
    buttonPressTime = millis(); // Record the time when the button was pressed
  }
 // Check if the LED should be on based on the button press time
  if (millis() - buttonPressTime <= interval) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    digitalWrite(ledPin1, HIGH); // Turn on the LED
    digitalWrite(ledPin4, HIGH); // Turn on the LED
    digitalWrite(ledPin5, HIGH); // Turn on the LED
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
    digitalWrite(ledPin1, LOW); // Turn off the LED
    digitalWrite(ledPin4, LOW); // Turn off the LED
    digitalWrite(ledPin5, LOW); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // DAILY HEIGHT
  if ( key == 'B' != NO_KEY) { // If a key is pressed
    buttonPressTime2 = millis(); // Record the time when the button was pressed
  }
  // Check if the LED should be on based on the button press time
  if (millis() - buttonPressTime1 <= interval1) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    digitalWrite(ledPin1, HIGH); // Turn on the LED
    digitalWrite(ledPin4, HIGH); // Turn on the LED
    digitalWrite(ledPin5, HIGH); // Turn on the LED
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
    digitalWrite(ledPin1, LOW); // Turn off the LED
    digitalWrite(ledPin4, LOW); // Turn off the LED
    digitalWrite(ledPin5, LOW); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // CRUIZING HEIGHT
  if ( key == 'C' != NO_KEY) { // If a key is pressed
    buttonPressTime2 = millis(); // Record the time when the button was pressed
  }
    // Check if the LED should be on based on the button press time
  if (millis() - buttonPressTime2 <= interval2) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    digitalWrite(ledPin1, HIGH); // Turn on the LED
    digitalWrite(ledPin4, HIGH); // Turn on the LED
    digitalWrite(ledPin5, HIGH); // Turn on the LED
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
    digitalWrite(ledPin1, LOW); // Turn off the LED
    digitalWrite(ledPin4, LOW); // Turn off the LED
    digitalWrite(ledPin5, LOW); // Turn off the LED
  }
/////////////////////////////////////////////////////////////////////////////////////////
            // AIR OUT
  if ( key == 'D' != NO_KEY) { // If a key is pressed
    buttonPressTime3 = millis(); // Record the time when the button was pressed
  }
    // Check if the LED should be on based on the button press time
  if (millis() - buttonPressTime3 <= interval3) {
    digitalWrite(ledPin2, HIGH); // Turn on the LED
    digitalWrite(ledPin3, HIGH); // Turn on the LED
    digitalWrite(ledPin6, HIGH); // Turn on the LED
    digitalWrite(ledPin7, HIGH); // Turn on the LED
  } else {
    digitalWrite(ledPin2, LOW); // Turn off the LED
    digitalWrite(ledPin3, LOW); // Turn off the LED
    digitalWrite(ledPin6, LOW); // Turn off the LED
    digitalWrite(ledPin7, LOW); // Turn off the LED
  }*/
/////////////////////////////////////////////////////////////////////////////////////////

}