main.cpp

00001 /******************************************************
00002 *File Name: Freezer_Guard main.cpp
00003 *Purpose: Freezer Guard System protects your freezer from unintentionaly defrost
00004 *
00005 *Author: denis schnier and fabian bitz @ University of applied sciences bingen
00006 *Changes:
00007 *
00008 * 18.05.2015 initial version
00009 * ...
00010 *******************************************************/
00011 
00012 #include "guard.h"
00013 #include "string.h"
00014 #define LIMIT 25   // Temperature Alarm Threshold
00015 byte MAIN_bState;
00016 byte bError;
00017 char cString[25];
00018 char data_array[2];
00019 DigitalOut led4(LED4);  //DEBUG
00020 
00021 int main()
00022 {
00023     int8 i8Value=0; //value has 8 bit + sign
00024     MAIN_bState=0; //statemachine: 0=no Alarm, 1=Alarm and no Mail sent, 2=Alarm and Mail sent, 3= Pending Alarm Confirmed
00025     bError=0;
00026     vGuardInit(); 
00027     led4=0; //DEBUG
00028     while(1){
00029     i8Value=readValue(MCP9808_ADDR);
00030     wait(1);
00031     if(i8Value>LIMIT && MAIN_bState==0) MAIN_bState=1;
00032     if(i8Value<LIMIT) MAIN_bState=0;
00033     switch(MAIN_bState) {
00034     case 0: { //normal case
00035         vLcdIntPrint(i8Value);
00036          vLcdAlarmPrint("System Running"); 
00037          vLcdStringPrint("Temperature Ok   \n        ");   
00038          break;
00039          }
00040          
00041     case 1:{
00042         vLcdIntPrint(i8Value);
00043         vLcdAlarmPrint("Alarm!        ");   
00044         vAudioAlarm();     
00045 //        bError=SendMail(i8Value);
00046         if(SendMail(i8Value))vLcdStringPrint("Mail Sent!      \n         ");
00047             else{
00048                 vLcdStringPrint("Mail Not Sent!     \n         ");
00049                 }
00050         led4=1; //DEBUG
00051 
00052          MAIN_bState=2;
00053           break;
00054           }
00055     case 2:{                        // case: mail sent, alarm pending
00056          vLcdIntPrint(i8Value);
00057          vAudioAlarm();
00058           break;
00059             }
00060     case 3:{                            //MAIN_bState=3 could only be set by ISR
00061          vLcdIntPrint(i8Value);
00062          break;
00063             }        
00064     default:{
00065           vLcdStringPrint("State Machine Error!");
00066           break;
00067           }
00068         }//state machine
00069     }//while(1)
00070 
00071 }//main