/*
* LAB Name: Arduino Timer Preloading
*/

#include <LiquidCrystal.h>

unsigned long Mytime;
unsigned long Mytimeold;
unsigned long TimeStart;
unsigned long TimeStop;
boolean StopperRun=false;
unsigned long StackTime[ 9 ];
string StackEvent[ 9 ];
int datacounter=0;
int lcdcounter=0;
int lcdline=0;

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);  // LCD pins (RS, E, D4, D5, D6, D7)

ISR(TIMER1_OVF_vect)
{
Mytime = micros();
// digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
Serial.print(Mytime);
Serial.print("\t\t"); // Double tab
Serial.print("Δt=");
Serial.print(Mytime-Mytimeold);
Serial.print("\t\t");
Serial.print("LDR1=");
Serial.print(!digitalRead(4));  // LDR1 status
Serial.print("\t");
Serial.print("LDR2=");
Serial.print(!digitalRead(3));  // LDR2 status
Serial.print("\t");
Serial.print("UP=");
Serial.print(!digitalRead(2));  // UP button status
Serial.print("\t");
Serial.print("Down=");
Serial.println(!digitalRead(13));  // DOWN button status
Mytimeold=Mytime;
  // Handle Timer Interrupt
}
 
void setup()
{
  Serial.begin(9600);
  // pinMode(LED_BUILTIN, OUTPUT);  // Pin13 felel meg a BiltInLED-nek, így az foglalt
  TCCR1A = 0;           // Init Timer1
  TCCR1B = 0;           // Init Timer1
  TCCR1B |= B00000100;  // Prescalar = 256
  TCNT1 = 34286;        // Timer Preloading: 0,500 s
  TIMSK1 |= B00000001;  // Enable Timer Overflow Interrupt

  lcd.begin(16,2);
  lcd.setCursor(0,0);
  lcd.print("ARDUINO TIMERS");
  delay(1000);
  lcd.clear();

  pinMode(6,INPUT);  // Start button
	pinMode(5,INPUT);  // Stop button
	pinMode(4,INPUT);  // LDR1 photoresistor-sensor
	pinMode(3,INPUT);  // LDR2 photoresistor-sensor
	pinMode(2,INPUT);  // UP button
	pinMode(13,INPUT);  // DOWN button
}
void loop()
{
  /*if(digitalRead(6)== LOW && StopperRun== false)  // Start button pressed
  {
    TimeStart = micros();
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(TimeStart);
    StopperRun=true;
  }
  if(digitalRead(5)== LOW && StopperRun== true)  // Stop button pressed
  {
    TimeStop = micros();
    lcd.setCursor(0,1);
    lcd.print(TimeStop);
    StopperRun=false;
  }
	*/

	if(digitalRead(6)== LOW && StopperRun== false && datacounter<10)  // Start button pressed
	{
		TimeStart = micros();
		StackTime[datacounter]=TimeStart
		StackEvent[datacounter]="Start"
		datacounter++
		StopperRun=true;
		text=datacounter + "Start:" + TimeStart;
		lcdview(text);
	}
}

void lcdview(char* text)
{
	if(lcdline== 0)
	{
		lcd.clear();
		lcd.setCursor(0, 0);
	}
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("button pressed:");
  lcd.setCursor(0, 1);
  lcd.print(text);
  lcd.print(" code: ");
  lcd.print(receiver.decodedIRData.command);
}