leds.h

#ifndef LEDS_H
#define LEDS_H
#include <arduino.h>

// Define pin numbers for the LEDs
const int ledPins[] = {A2, A3, A4, A5};

/*
  initializeLeds() subroutine intializes analog pins A2,A3,A4,A5
  to be used as outputs. Speden Spelit leds are connected to those
  pins.  
*/
void initializeLeds();

/*
  setLed(byte) sets correct led number given as 0,1,2 or 3
  led number 0 corresponds to led connected at Arduino pin A2
  led number 1 => Arduino pin A3
  led number 2 => Arduino pin A4
  led number 3 => Arduino pin A5
  
  parameters:
  byte ledNumber is 0,1,2 or 3
*/
void setLed(byte ledNumber);

/*
  clearAllLeds(void) subroutine clears all leds
*/
void clearAllLeds(void);

/*
  setAllLeds subroutine sets all leds
*/
void setAllLeds(void);

/*
  Testiohjelma, jolla void setLed(byte), void clearAllLeds(void) ja void setAllLeds(void) aliohjelmien toiminta tulee todistettua 
*/
void testiOhjelma(void); 

/*
  show1() subroutine shows numbers 0,1,...,15 as binary numbers
  waits a bit and repeats number "show"
*/
void show1(void);

/*
  show2(int) subroutine shows leds 0, 0,1, 0,1,2, 0,1,2,3 with increasing
  changing rate per round. And when top change speed has been reached

    Parameters:
  
  int rounds: This parameter determines how many times 0,1,2,3 sequence
              is shown. 
*/
void show2(int);

#endif