//\\\\\\\allo paradeigm pws sundeei sensor klp
//\\\\\\\https://www.makerguides.com/hc-sr04-arduino-tutorial/
///////////////////////////////////////////////////////////////
//apo edv phra th sundesh arduino processing
//https://gist.github.com/timpulver/5ba4a29cddd543b4a900
//arduino sound trigger with processing
///////kai////////////////////////////////////////////////////////
//https://create.arduino.cc/projecthub/microBob/lcd-liquid-crystal-display-e72c74?ref=similar&ref_id=158930&offset=3
//apo edv phra th syndesh ths othonhs lcd..
//////////////////////////////////////////////////////////


#include <LiquidCrystal.h>

//Include^
//Init
LiquidCrystal lcd(12,11, 5, 4, 3, 2); /*Initialize the LCD and
                                        tell it which pins is
                                        to be used for communicating*/


//Global Var
#define contra 9 //Define the pin that controls the contrast of the screen
#define bri 10 //Define the pin the controls the brightness of the screen
//Both pins are PWM so you can analogWrite to them and have them output a variable value






/* Example code for HC-SR04 ultrasonic distance sensor with Arduino. No library required. More info: https://www.makerguides.com */
//Global Var
#define contra 9 //Define the pin that controls the contrast of the screen
#define bri 10 //Define the pin the controls the brightness of the screen
//Both pins are PWM so you can analogWrite to them and have them output a variable value

// Define Trig and Echo pin for ultra sonic sensor:
#define trigPin 7
#define echoPin 6

// Define variables: //dhlvnv
long duration;
int distance;


void setup() {

  // put your setup code here, to run once:
  lcd.begin(16, 2); //Tell the LCD that it is a 16x2 LCD
  pinMode(contra, OUTPUT); //set pin 9 to OUTPUT
  pinMode(bri, OUTPUT); //Set pin 10 to OUTPUT
  //pinMode-ing OUTPUT makes the specified pin output power
  analogWrite(contra, 110); //*outputs power to the contrast pin.
  //  this lets you see the words*/
  analogWrite(bri, 255); //Outputs full power to the screen brightness LED

  // Define inputs and outputs for ultra sonic sensor:
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  //Begin Serial communication at a baudrate of 9600:
  Serial.begin(9600);
}


void reset() {
  analogWrite(contra, 18 * 5);
  analogWrite(bri, 255);
}
void brihigh() {
  analogWrite(contra, 10 * 5);
  analogWrite(bri, 255);
}

void contrhigh() {
  analogWrite(contra, 22 * 6);
  digitalWrite(bri, 255);
}

void endhigh() {
  analogWrite(contra, 10 * 8);
  digitalWrite(bri, 255);
}

void loop() {
  // put your main code here, to run repeatedly:

  // Clear the trigPin of UltraSonic sensor by setting it LOW:
  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);

  // Trigger the sensor by setting the trigPin high for 10 microseconds:
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  // Read the echoPin, pulseIn() returns the duration (length of the pulse) in microseconds:
  duration = pulseIn(echoPin, HIGH); //initialize//arxikopoihsh metavlhths me mia timh

  // Calculate the distance:
  distance = duration * 0.034 / 2;  //initialize//arxikopoihsh metavlhths me mia timh



  if (distance > 1182 || distance < 26) {


    for (int l = 0; l < 16; l++) { //For loop. Repeating 16 times
      brihigh();
      lcd.setCursor(l, 0); //Scroll only first line -text to the right once
      lcd.print(String("META"));
      delay(70); //Slight delay for animation
      lcd.clear();
    }

    for (int l = 0; l < 10; l++) {
      //                        brihigh();
      //                        delay(35);
      //                        reset();
      //                        delay(15);
      //                        contrhigh();
      //                        delay(15);
      lcd.setCursor(0, 0);
      lcd.print(String("META"));
      delay(20);

      lcd.setCursor(10 - (l + 1), 1);
      lcd.print(String("KINHSH"));
      delay(30);

      if (l == 9) {
        contrhigh();
        delay(700);
       // Serial.println("leitoyrgv");
      }
      lcd.clear();
    }

    for (int l = 0; l < 6; l++) {

      lcd.setCursor(l, 0);
      lcd.print(String("META"));
      delay(100);
      lcd.clear();
      if (l > 3) {
        contrhigh();
        delay(10);
        endhigh();
        delay(10);
      }

    }


  } else {
    contrhigh();
    // Print the distance on the Serial Monitor (Ctrl+Shift+M):
    //use these numbers in processing to activate sound and more!!!!////////////////////////
    //\\\\\\\\\\\\\\\\\\\\\\\\\\\\Serial.print("Distance = "); //and // Serial.println(" cm"); do not need them\\\\\\\\\\\\\\//
    Serial.println(distance); //\\\\so we take only numbers without cm!!!***//

    //write the distance on screen
    //lcd.setCursor(0, 0);
    lcd.print(String("Distance"));  //Output " Distance" on the first line of the LCD
    lcd.setCursor(0, 1);   /*Set the (invisible) cursor on the first place second row of the LCD.
                                     Cursor values are 0-indexed, 0 would the be the first place.
                                     The cursor coordinates are X,Y coordinates.*/
    lcd.print(distance + String(" cm")); //puts the number taken from ultra sonic sensor and puts cm at the end/////
    //prosthetei th metavlhth mesa san keimeno mazi me to cm kai th vgalei ena megalutero keimeno gia auto vazv to string //g n mhn kanei prosthesei epeidh h mia metavljhth mou einai int//
    //to string einai typos metavlhths poy dhlvnei keimeno !!!///
    delay(1000);  //Wait a second
    lcd.clear(); //clears the screen

  }

}