// *********************************************************************
// *                           DDC-IO-01                               *
// *                          Demo example                             *
// *********************************************************************
// Example for development kit DDC-IO-01.
//
// Intended for:
//   HW: - (DC)TR-72D or DDC-76D-01 + DK-EVAL-04x development kit with DDC-IO-01 connected
//
//   OS: - v4.06D
//      
// Description:
//   This example sends RF packet on every button press. Sent packets 
//   can be shown in IQRF IDE Terminal using e.g. E03-TR.c example. 
//   This example can cooperate with DDC-RE-01 to control relays.
//   See example DDC-RE-01.c.
//
//   Button RF packet   Function (DDC-RE-01)
//   1      "S1x"       switch RE1 on
//   2      "S2x"       switch RE1 off
//   3      "S3x"       switch RE2 on
//   4      "S4x"       switch RE2 off
//   5      "S5x"       ---
//   6      "S6x"       ---
//   (x: 0 - battery ok, 1 - battery error)
//
//   All DIP switches (DDC-IO-01) must be set as PULL DOWN.
//
// ---------------------------------------------------------------------
// Online IQRF OS Reference Guide: https://doc.iqrf.org/IQRF-OS-Reference-guide
//
// Copyright (c) IQRF Tech s.r.o.
//
// File:    DDC-IO-01.c
// Version: v2.09                                   Revision: 07/01/2022
//
// Revision history:
//   v2.09: 07/01/2022  Tested for OS 4.06D.
//   v2.08: 30/06/2021  Tested for OS 4.05D.
//   v2.07: 26/08/2020  Tested for OS 4.04D.
//   v2.06: 21/09/2018  Tested for OS 4.03D.
//   v2.05: 22/08/2017  Tested for OS 4.02D.
//   v2.03: 03/03/2017  Tested for OS 4.00D.
//   v2.02: 23/02/2016  Tested for OS 3.08D.
//   v2.01: 17/09/2015  Tested with DDC-76D-01.
//   v2.00: 01/07/2015  First release for (DC)TR-7xD.
//
// *********************************************************************
#include "IQRF.h"  // System header files

// *********************************************************************
#define SW1_TRIS            TRISC.5     // C8/SDO pin connected to the SW1
#define SW1                 PORTC.5

#define SW2_TRIS            TRISC.4     // C7/SDI pin connected to the SW1
#define SW2                 PORTC.4

#define SW3_TRIS            TRISC.3     // C6/SCK pin connected to the SW3
#define SW3                 PORTC.3

#define SW4_TRIS            TRISA.5     // C5/SS pin connected to the SW4
#define SW4                 PORTA.5

#define SW5_TRIS            TRISA.0     // C1/IO1 pin connected to the SW5
#define SW5                 PORTA.0

#define SW6_TRIS            TRISC.2     // C2/IO2 pin connected to the SW6
#define SW6                 PORTC.2

#define VOLTAGE_TRESHOLD    38          // cca 2.9V
                    
// *********************************************************************

void APPLICATION()
{
    SW1_TRIS = 1;                       // pins as inputs
    SW2_TRIS = 1;
    SW3_TRIS = 1;
    SW4_TRIS = 1;
    SW5_TRIS = 1;
    SW6_TRIS = 1;

    pulseLEDG();                        // reset indication
    waitDelay(10);

    while (1)
    {
        if      (SW1) bufferRF[1] = '1';
        else if (SW2) bufferRF[1] = '2';    
        else if (SW3) bufferRF[1] = '3';
        else if (SW4) bufferRF[1] = '4';
        else if (SW5) bufferRF[1] = '5';
        else if (SW6) bufferRF[1] = '6';
        else 
            goto loop_end;              // no button was pressed

        if (getSupplyVoltage() < VOLTAGE_TRESHOLD)      
        {
            pulseLEDR();                // battery error
            bufferRF[2] = '1';
        }
        else
        {
            pulseLEDG();                // battery ok
            bufferRF[2] = '0';
        }
        
        bufferRF[0] = 'S';
        DLEN = 3;                       // setup RF packet length
        PIN = 0;
        RFTXpacket();                   // transmit the message
        
loop_end:       
        while (SW1 || SW2 || SW3 || SW4 || SW5 || SW6); // all buttons must be released
        
        waitDelay(10);                  // debounce time
    }
}
//----------------------------------------------------------------------