#include <Key.h>
#include <Keypad.h>
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
  #include <avr/power.h>
#endif
#define NUMPIXELS     16
#define PIN            10

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

int delayval = 500; // delay for half a second

int LED1 =12;
int buzzerPin =11;



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

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

void setup() {
  Serial.begin(9600);
  pinMode(LED1, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  #if defined (__AVR_ATtiny85__)
  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif
  // End of trinket special code

  pixels.begin(); // This initializes the NeoPixel library.


}

void loop() {
 
 char customkey = customKeypad.getKey();
 if(customkey){
    if(customkey == '1'){
                  
    conditionA();
    }
    
    else if(customkey == '2'){
                      
    conditionB();
    }
    
    else if(customkey == '3'){
                      
    conditionC();
    }
    
  }
  
}
void conditionA(){
    digitalWrite(LED1, HIGH);
    delay(100);
    
    digitalWrite(LED1, LOW);
    Serial.println("1");
}

void conditionB(){
    digitalWrite(buzzerPin, HIGH);
    delay(2000);
    digitalWrite(buzzerPin, LOW);
    Serial.println("2");
}

  void conditionC(){
    for(int i=0;i<NUMPIXELS;i++){

    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(0,150,0)); // Moderately bright green color.

    pixels.show(); // This sends the updated pixel color to the hardware.

    delay(100); // Delay for a period of time (in milliseconds).

   }
   Serial.println("3");
  }