Core.cpp

00001 #include "Core.h"
00002 
00003 // Speaker
00004 PwmOut spkr(D6);
00005 
00006 // Using Arduino pin notation
00007 C12832 lcd(D11, D13, D12, D7, D10);
00008 
00009 // Orientation
00010 MMA7660 MMA(D14,D15);
00011 
00012 // Led color
00013 DigitalOut r(D5);
00014 DigitalOut b(D8);
00015 DigitalOut g(D9);
00016 
00017 // Used for USB connection
00018 Serial host(USBTX, USBRX);
00019 
00020 Core::Core() {
00021     r = 1.0;
00022     b = 1.0;
00023     g = 1.0;
00024     _message = "Searching..";
00025     _quiet = true;
00026     host.baud(38400);
00027     
00028     _network = easy_connect(true);
00029     if (!_network) {
00030         printf("Cannot connect to the network, see serial output");
00031         return;
00032     }
00033 }
00034 
00035 bool Core::doorIsOpening() {
00036     if (MMA.x() > 0.2 || MMA.x() < -0.2) {
00037         return true;
00038     }
00039     return false;
00040 }
00041 
00042 void Core::displayMessageOnScreen() {
00043     lcd.cls();
00044     lcd.locate(0,0);
00045     lcd.printf("%s", _message); // Around 60max
00046     printf("%s\n", _message);
00047 }
00048 
00049 void Core::triggerAlarm() {
00050     static bool state = true;
00051     
00052     if (state) {
00053         r = 0;
00054         g = 1;
00055         b = 1;
00056         spkr.period(1.0/1000);
00057         spkr=0.5;
00058 
00059     } else {
00060         r = 1;
00061         g = 1;
00062         b = 0;        
00063         spkr.period(1.0/500);
00064         spkr=0.5;
00065     }
00066     state = !state;
00067 }
00068 
00069 void Core::dumpResponseGet(HttpResponse* res) {    
00070     char *pch;
00071     char *cstr = new char[res->get_body_as_string().length() + 1];
00072     
00073     strcpy(cstr, res->get_body_as_string().c_str());
00074     pch = strtok (cstr,"{}:,");
00075     int i = 0;
00076     while (pch != NULL) {
00077         pch = strtok (NULL, "{}:,");
00078         if (i == 2) {
00079             _message = pch;
00080         } else if (i == 4) {
00081             if (strcmp(pch, "false") == 0) {
00082                 _quiet = false;
00083             } else {
00084                 _quiet = true;
00085             }
00086             
00087         }
00088         i++;
00089     }
00090 }
00091 
00092 void Core::getRequest() {
00093     HttpRequest* get_req = new HttpRequest(_network, HTTP_GET, "http://10.0.0.91:8080/api/alarms/room1");
00094     HttpResponse* get_res = get_req->send();
00095     
00096     if (!get_res) {
00097         printf("HttpRequest get failed (error code %d)\n", get_req->get_error());
00098         return;
00099     }
00100 
00101     dumpResponseGet(get_res);
00102 
00103     printf("\n end response get\n");
00104     delete get_req;
00105 }
00106 
00107 void Core::putRequest() {
00108     HttpRequest* put_req = new HttpRequest(_network, HTTP_PUT, "http://10.0.0.91:8080/api/alarms/room1");
00109     put_req->set_header("Content-Type", "application/json");
00110 
00111     const char body[] = "{\"message\":\"Warning - Intruder !\", \"quiet\":\"false\"}";
00112 
00113     HttpResponse* put_res = put_req->send(body, strlen(body));
00114     if (!put_res) {
00115         printf("HttpRequest put failed (error code %d)\n", put_req->get_error());
00116         return;
00117     }
00118     delete put_req;
00119 }
00120 
00121 void Core::shutDownAlarm(void) {
00122     r = 1;
00123     g = 1;
00124     b = 1;
00125     spkr=0;
00126 }
00127 
00128 void Core::guard(void) {
00129     // Inifinte loop
00130     while (1) {
00131         if (doorIsOpening()) {
00132             putRequest(); // Update infos from local to API
00133         }
00134         getRequest(); // Update infos from API to local
00135         if (_quiet == false) {
00136             triggerAlarm();
00137         } else {
00138             shutDownAlarm();
00139         }
00140         displayMessageOnScreen();
00141     wait(0.5);
00142     }
00143 }
00144 
00145 int main()
00146 {
00147     Core *core = new Core();
00148     
00149     core->guard();
00150     delete core;
00151 }