/*
  AXA2902_CONTROL - An Arduino sketch to demonstrate all the different ways of 
  controlling the Axa Remote Window Winder with the HOME-LINBUS Translator Shield.

  Created by Peter, 2015 V 1.00
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/   

#include <Arduino.h>

// constants won't change. Used here to
// set pin numbers:
const int ledPin =  13;              // the number of the LED pin

#define AXA2902_STATUS                  2
#define AXA2902_STATUS_REQ              3
#define AXA2902_OPEN_CMD                4
#define AXA2902_STOP_CMD                5
#define AXA2902_CLOSE_CMD               6

#define WindowStatusOpen                0
#define WindowStatusClosed              1

boolean WindowStatus;
unsigned char TimeOutCnt;

void OpenWindowCmd() 
{
  digitalWrite(AXA2902_OPEN_CMD,LOW);
  delay(30);                         // waits 30mseconds
  digitalWrite(AXA2902_OPEN_CMD,HIGH);
}

void StopWindowCmd() 
{
  digitalWrite(AXA2902_STOP_CMD,LOW);
  delay(30);                         // waits 30mseconds
  digitalWrite(AXA2902_STOP_CMD,HIGH);
}

void CloseWindowCmd() 
{
  digitalWrite(AXA2902_CLOSE_CMD,LOW);
  delay(30);                         // waits 30mseconds
  digitalWrite(AXA2902_CLOSE_CMD,HIGH);
}

byte GetWindowStatusCmd() 
{
  digitalWrite(AXA2902_STATUS_REQ,LOW);
  delay(30);                         // waits 30mseconds
  digitalWrite(AXA2902_STATUS_REQ,HIGH);
  delay(80);                         // waits 80mseconds
  
  return digitalRead(AXA2902_STATUS);
}

void setup() {
  pinMode(ledPin, OUTPUT); 
  pinMode(AXA2902_OPEN_CMD,      OUTPUT);
  pinMode(AXA2902_STOP_CMD,      OUTPUT);
  pinMode(AXA2902_CLOSE_CMD,     OUTPUT);
  pinMode(AXA2902_STATUS_REQ,    OUTPUT);
  pinMode(AXA2902_STATUS,        INPUT);
  digitalWrite(AXA2902_OPEN_CMD,     HIGH);
  digitalWrite(AXA2902_STOP_CMD,     HIGH);
  digitalWrite(AXA2902_CLOSE_CMD,    HIGH);
  digitalWrite(AXA2902_STATUS_REQ,    HIGH);
  delay(300);                        // waits 300mseconds
// Check current window status
  if(GetWindowStatusCmd() == WindowStatusClosed)
  {
   digitalWrite(ledPin, LOW);
   WindowStatus = WindowStatusClosed;
  }
  else
  {
   digitalWrite(ledPin, HIGH);
   WindowStatus = WindowStatusOpen;
   OpenWindowCmd();
   delay(10000);                      // waits for 10 seconds
  }

  delay(500);                        // waits for 500mseconds
}

void loop() {
// if closed we will open the window completely.
   if(WindowStatus==WindowStatusClosed)
   {
    OpenWindowCmd();
    do 
    {
     delay(500);                      // waits for half a second
    } while (GetWindowStatusCmd()!= WindowStatusOpen);
    digitalWrite(ledPin, HIGH);
    WindowStatus = WindowStatusOpen;
    delay(45000);                     // waits for 45 seconds to open completely !.
                                      // waiting XX seconds means you open the window partly, for example: 25 seconds is about 50% !.
// exit if we completely opened the window.
   }

// if opened we will close the window completely.
   if(WindowStatus==WindowStatusOpen)
   {
    CloseWindowCmd();
    TimeOutCnt = 80;
    do 
    {
     delay(500);                      // waits for half a second
     if(TimeOutCnt) TimeOutCnt--;
     else { OpenWindowCmd();          // Timeout happens only if the Window Winder is restarted and not closing.
       delay(45000);                  // waits for 45 seconds to open completely !.
       CloseWindowCmd();
       TimeOutCnt = 80;
     }
    } while (GetWindowStatusCmd()!= WindowStatusClosed);
    digitalWrite(ledPin, LOW);
    WindowStatus = WindowStatusClosed;
// exit if we completely closed the window.
   }
   delay(5000);                        // waits for 5 seconds
}