/***********************************************************************
 * Template for programming the Pibrella from PiMoRoNi in C.
 *
 * Dependencies: The wiringPi C libraries must be installed.  
 * Instructions for download, install and use 
 * are located at http://wiringpi.com 
 *
 * Compile with:  gcc -o [FILENAME] [FILENAME].c -lwiringPi
 *
 * Some of the more advanced features require additional #include 
 * statements and Linking additional libraries.
 *
 ***********************************************************************/

#include <wiringPi.h>

/***********************************************************************
 * LEDs
 ***********************************************************************/ 
int ledR = 2; // Red
int ledY = 0; // Yellow
int ledG = 7; // Green
int led[] = {2,0,7}; // Red, Yellow, Green - Array of LEDs.

/***********************************************************************
 * Outputs - There are four output pins marked E, F, G and H.
 * There are two female connectors for each output.
 * The connector closest to the red button is the pin (positive).
 * The other connection is the ground
 * Each output pin has an status led which lights when the pin is high.
 *********************************************************************/ 
int outE = 3;  
int outF = 4; 
int outG = 5;
int outH = 6;
int out[] = {3,4,5,6}; // E, F, G, H - Array of outputs.
 
/***********************************************************************
 * Inputs - There are four input pins marked A, B, C and D.
 * There are two female connectors for each input.
 * The pin closest to the Red button is the digital input
 * and the other is + 3.3 volts.
 * There is an onboard pull down resistor on each input.
 * Using a switch to short directly to +3.3 volts is okay.
 * A resistive sensor (like a photocell) will switch the pin to high when 
 * when the resistance is less than approximentally 30k.
 * Each input pin has a status led which lights when the pin is high.
 *********************************************************************/ 
int inA = 13;
int inB = 11;
int inC = 10;
int inD = 12;
int in[] = {13,11,10,12}; // A, B, C, D - Array of Inputs.

// Onboard button
int BUTTON = 14; //Button has an onboard pull down resistor. 

// Onboard buzzer
int BUZZER = 1;

/***********************************************************************
 * setup() function, sets the pinModes for the features of the Pibrella
 ***********************************************************************/
void setup(void)
{
  int i; // Index for for loops.

  wiringPiSetup();    // Some WiringPi functions require sudo access. Use wiringPiSetup().

  for(i=0;i<3;i++) pinMode(led[i], OUTPUT);
  for(i=0;i<4;i++) pinMode(out[i], OUTPUT);
  for(i=0;i<4;i++) pinMode(in[i], INPUT);
  pinMode(BUTTON, INPUT);
  pinMode(BUZZER, OUTPUT);
}

/***********************************************************************
 * loop() function, runs in continuous loop when setup finishes.
 *
 *  <<< YOUR CODE GOES HERE >>>
 *
 ***********************************************************************/
void loop(void)
{
// This is sample code you can delete it and write your own loop()function.

// In this example the red LED will light if input A is shorted to +3.3 volts,
  if(digitalRead(inA)==HIGH) digitalWrite(ledR, HIGH);
  else digitalWrite(ledR, LOW);

// and the green LED will light if the button is pressed.
  if(digitalRead(BUTTON)==HIGH) digitalWrite(ledG, HIGH);
  else digitalWrite(ledG, LOW);
}

/***********************************************************************
 * main() function, required in all programs.
 ***********************************************************************/
int main(void)
{
  setup();

  while(1) // Do this forever.
  {
    loop();
  }
  return 0;
}