#include <Arduino.h>
#include <stdio.h>
//#include <NewToneLib.h> 
const int button_1 = 5; // turns led_1 on and off , pin 1 and 0 default to high
const int button_2 = 2;// slows blinking of led_2
const int button_3 = 3; // speeds blinking of led_3
const int button_4 = 4;
const int led_1 = 13; //on/off led
const int led_2 = 11; // led that will blink
const int buzzer = 12; // buzzer
//MyTone t(false);  


void setup() {
pinMode(button_1,INPUT); // configure each pin 1,2,3,4 to be an input.
pinMode(button_2,INPUT);
pinMode(button_3,INPUT);
pinMode(button_4,INPUT); 
pinMode(buzzer, OUTPUT); //pin 13 as output 
pinMode(led_1,OUTPUT); // initilize d13 as the output 
pinMode(led_2,OUTPUT);
Serial.begin(9600); 
}

void led_2_control() { //pin 11

  if (digitalRead(button_2)==HIGH){ 
      slow_blink(led_2);
  }
  else if (digitalRead(button_3)==HIGH) {
    fast_blink(led_2); 
  }
  else {
    blink(led_2); // 1s blink as default 
  }
}

void fast_blink(int led) {
  digitalWrite(led, HIGH);
  delay(200);             // waits for a second
  digitalWrite(led, LOW);   
  delay(200);             // waits for a second
}

void slow_blink(int led){
  digitalWrite(led, HIGH);
  delay(3000);             // waits for ~3 second
  digitalWrite(led, LOW);   
  delay(3000);             // waits for ~3  second
}

void blink(int led) {
  digitalWrite(led, HIGH);
  delay(1000);             // waits for a second
  digitalWrite(led, LOW);   
  delay(1000);             // waits for a second
}

void led_1_onoff(){
  if (digitalRead(button_1) == HIGH){
  digitalWrite(led_1, HIGH);
  }
  if (digitalRead(button_1) == LOW){
  digitalWrite(led_1, LOW);
  }
}

void buzzer_control(){
   //digitalWrite(buzzer,HIGH);
   if (digitalRead(button_4)== HIGH){
      tone(buzzer, 1500, 0);
   }
   else{
    tone(buzzer, 600, 0);
   }
}

  //int notei[] = {262, 294, 330, 349, 392, 440, 494, 523};
 // int durationi[] = {500, 500, 500, 500, 500, 500, 500, 500};
 // for(int i = 8; i <=8; i++){
   // int note = notei[i];
    //int note_length = durationi[i];
    //tone(buzzer, note, note_length);
    //delay(note_length);
  //}

void loop() {
led_1_onoff(); 
led_2_control();
buzzer_control();

}