bool SIM900GPRS::turnOn() {
// check if already on, if so return true
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT"));
#endif
_cell->println(F("AT"));
if(successfulResponse(100)) {
#ifdef DEBUG
_debug->println(F("Already on"));
#endif
return true;
}
powerOnCycle();
// try to send AT and get OK back
int i = 0;
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT"));
#endif
_cell->println(F("AT"));
while(!successfulResponse(250) && (i < 10)) {
i++;
_cell->println(F("AT"));
}
if(i == 10) { // did not get response after 10 AT commands, could not turn on
_status = ERROR;
return false;
}
_status = CONNECTING;
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" ATE0"));
#endif
_cell->println(F("ATE0"));
if(!successfulResponse()) {
return false;
}
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" ATV1"));
#endif
_cell->println(F("ATV1"));
if(!successfulResponse()) { //set verbose mode
return false;
}
return true;
}
/**
*
* Parameters -
* Returns -
*/
bool SIM900GPRS::deactivateDateTime()
{
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CLTS=0"));
#endif
_cell->println(F("AT+CLTS=0"));
return successfulResponse();
}
void MycosmosController::downloadFinished(QNetworkReply *reply){
QUrl url = reply->url();
if(reply->error() == QNetworkReply::NoError) {
// Get the http status code
int v = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
if (v >= 200 && v < 300){ // Success
}
else if (v >= 300 && v < 400) {// Redirection
// Get the redirection url
QUrl newUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
// Because the redirection url can be relative,
// we have to use the previous one to resolve it
newUrl = reply->url().resolved(newUrl);
// QNetworkAccessManager *manager = nReply->manager();
// QNetworkRequest redirection(newUrl);
// QNetworkReply *newReply = manager->get(redirection);
return; // to keep the manager for the next request
}
// Here we got the final reply
htmlReplyText = QString::fromUtf8(reply->readAll());
// get view state string
viewStateString = getViewState(htmlReplyText);
QList<QNetworkCookie> cookies = nManager->cookieJar()->cookiesForUrl(url);
for(int i=0; i<cookies.count(); i++){
printf("COOKIE %d Name:%s Value:%s\n" ,i,qPrintable(QString::fromUtf8(cookies.at(i).name())),qPrintable(QString::fromUtf8(cookies.at(i).value())) );
}
printf("COOKIES for %s\n%s\n" ,qPrintable(url.host()) ,qPrintable(QString::number(cookies.count())));
// save cookies inside a QVariant
cookieData.setValue(cookies);
emit successfulResponse();
}
else
{
// Error
printf("Download of %s failed: %s\n",url.toEncoded().constData(),qPrintable(reply->errorString()));
}
printf("Url encoded Νένα 1:%s\n" ,qPrintable(QUrl::toPercentEncoding("Νένα 1",0,0)));
// We receive ownership of the reply object
// and therefore need to handle deletion.
// delete reply;
}
// TODO - Implement not supported features
NetworkStatus_t SIM900GPRS::begin(char* pin, bool restart)
{
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+IPR=0"));
#endif
_cell->println(F("AT+IPR=0"));
if(!successfulResponse()) { //set autoBaud (default not really needed)
return ERROR;
}
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CMEE=1"));
#endif
_cell->println(F("AT+CMEE=1"));
if(!successfulResponse()) { //set extended error report
// CMEE=0 just ERROR
// CMEE=1 just error number
// CMEE=2 full error
return ERROR;
}
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CREG=0"));
#endif
_cell->println(F("AT+CREG=0")); // no presentation of unsolicited result code +CREG
if(!successfulResponse()) {
return ERROR;
}
// _cell->println(F("AT+IFC=1,1"));
// if(!successfulResponse()) { //set software flow control
// return ERROR;
// }
return GSM_READY;
}
char* SIM900GPRS::getSoftwareVersion() {
//
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CGMR"));
#endif
_cell->println(F("AT+CGMR")); // Retrurns: Revision:1137B11SIM900M64_ST
if(!successfulResponse()) { // no response
return NULL;
}
char* end = strstr_P(_buffer, PSTR("OK"));
end -=4; // end points att O in OK and is preceeded with two times '\r\n'
end[0] = 0;
return &_buffer[11]; // start from first character after '\r\nRevision:'
}
/**
*
* Parameters -
* Returns -
*/
char* SIM900GPRS::getTimeStr()
{
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CCLK?"));
#endif
_cell->println(F("AT+CCLK?")); // RETURNS: +CCLK: "15/03/26,17:25:28+04"
if(!successfulResponse()) { // no response
return NULL;
}
char* end = strstr_P(_buffer, PSTR("OK"));
end -=8; // end points att O in OK and is preceeded with two \r\n and a +zz"
end[0] = 0;
return &_buffer[10]; // start from character after first "
}
/**
* Obtain modem IMEI (command AT)
* Returns - string with modem IMEI number or NULL if failed
* The IMEI string is on the format "AABBBBBBCCCCCCEE" and always 16 characters long.
*/
char* SIM900GPRS::getIMEI()
{
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+GSN"));
#endif
_cell->println(F("AT+GSN")); //RETURNS: 0000646714 OK
if(!successfulResponse()) { // no response
return NULL;
}
char* end = strstr_P(_buffer, PSTR("OK"));
end -=4; // end points att O in OK and is preceeded with \r\n
end[0] = 0;
return _buffer+2;
}
bool SIM900GPRS::isGPRSAvailable() {
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CGATT?"));
#endif
_cell->println(F("AT+CGATT?")); // check if GPRS is activated
// RETURNS: +CGATT: 1 OK
if(!successfulResponse(3000)) { // no response
return NULL;
}
char* end = strstr_P(_buffer, PSTR("OK"));
end -=1;
end[0] = 0;
char* gprs = strchr(_buffer,':');
if(gprs[2]=='1') {
return true;
} else {
return false;
}
}
/**
* Gets signal quality, returns the rssi value
* 0 -115 dBm or less
* 1 -111 dBm
* 2..30 -110..-54 dBm
* 31 -52 dBm or greater
* 99 not known or detectable
*/
int SIM900GPRS::getSignalStrength() {
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CSQ"));
#endif
_cell->println(F("AT+CSQ"));
//RETURNS: +CSQ: 7,0
/*
+CSQ: <rssi>, <ber>
<rssi>
0 -115 dBm or less
1 -111 dBm
2..30 -110..-54 dBm
31 -52 dBm or greater
99 not known or detectable
<ber> (in percent)
0..7 as RXQUAL values in the table GSM 05-08 [20] subclause 7.2.4
99 not knonw or detectable
*/
if(!successfulResponse()) { // no response
return 99;
}
char* end = strstr_P(_buffer, PSTR("OK"));
if(NULL == end ) {
return 99;
}
end -=4; // end points att O in OK and is preceeded with two times '\r\n'
end -=2; // skip the <ber> part and the ',' .
end[0] = 0;
char* gprs = strchr(_buffer,':');
gprs +=2; // skip the blank space
#ifdef DEBUG
_debug->print(millis());
_debug->print(F(" RSSI: "));
_debug->println(gprs);
#endif
return atoi(gprs);
}
/**
*
* Parameters -
* Returns - a string with current GMT time
* Got time: 00/01/01,00:00:36+08
1999/12/31 22:00:36
*/
time_t SIM900GPRS::getUnixTime()
{
char *localBufferPtr = _buffer; // create a local copy of the pointer since we will manipulate it
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CCLK?"));
#endif
_cell->println(F("AT+CCLK?")); // RETURNS: +CCLK: "15/03/26,17:25:28+04"\r\n\r\nOK\r\n
if(!successfulResponse()) { // no response
return NULL;
}
localBufferPtr += 10; // start from character after first "
char* end = strstr_P(localBufferPtr, PSTR("OK"));
end -=5; // end points at O in OK and is preceeded with two \r\n and an "
end[0] = 0;
int year;
int month;
int day;
int hour;
int min;
int sec;
int tz;
localBufferPtr[2]=0;
year = atoi(localBufferPtr);
localBufferPtr += 3;
localBufferPtr[2]=0;
month = atoi(localBufferPtr);
localBufferPtr += 3;
localBufferPtr[2]=0;
day = atoi(localBufferPtr);
localBufferPtr += 3;
localBufferPtr[2]=0;
hour = atoi(localBufferPtr);
localBufferPtr += 3;
localBufferPtr[2]=0;
min = atoi(localBufferPtr);
localBufferPtr += 3;
tz = atoi(&localBufferPtr[3]); // parse including the + or - in the timezone
end -=3; // remove the a +zz
end[0] = 0;
sec = atoi(localBufferPtr);
tmElements_t tm;
if(year<15) {
// When the modem has not synced it's time it reports the date as 00/01/01,00:00:00+zz plus the time that has passed since it started.
// This software was written in 2015 so we know that the year cannot be less than 15. If so return NULL to indicate invalid time.
return NULL;
}
year += 30; // years since 1970
tm.Year = year;
tm.Month = month;
tm.Day = day;
tm.Hour = hour;
tm.Minute = min;
tm.Second = sec;
// compensate for time zone so the result will be in GMT
// tz indicates the difference, expressed in quarters of an hour, between the loacl time and GMT; range -47 ... +48
return makeTime(tm) - (tz * 15 * 60);
}
NetworkStatus_t SIM900GPRS::attachGPRS(const char * const domain, const char * const username, const char * const password) {
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CREG?"));
#endif
_cell->println(F("AT+CREG?")); // check if registered in network
// RETURNS: +CREG: 1,x OK
if(!successfulResponse()) { // no response
_status = ERROR;
return _status;
}
char* end = strstr_P(_buffer, PSTR("OK"));
end -=1;
end[0] = 0;
char* registered = strstr_P(_buffer, PSTR("+CREG: 0,"));
if(registered[9] !='1') {
_status = CONNECTING;
return _status;
}
delay(15); // short delay needed for modem to detect next command
// we only want a single IP Connection at a time.
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CIPMUX=0"));
#endif
_cell->println(F("AT+CIPMUX=0"));
if(!successfulResponse()) {
_status = CONNECTING;
return _status;
}
// we want non-transparent mode
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CIPMODE=0"));
#endif
_cell->println(F("AT+CIPMODE=0"));
if(!successfulResponse()) {
_status = CONNECTING;
return _status;
}
// start GPRS task and set APN, username and password
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CSTT="));
#endif
_cell->print(F("AT+CSTT=\""));
_cell->print(domain);
_cell->print(F("\",\""));
if(NULL != username) _cell->print(username);
_cell->print(F("\",\""));
if(NULL != password) _cell->print(password);
_cell->println(F("\""));
if(!successfulResponse()) {
_status = CONNECTING;
return _status;
}
// chip is in state IP START
// bring up wireless connection with GPRS or CSD
#ifdef DEBUG
_debug->print(millis());
_debug->println(F(" AT+CIICR"));
#endif
_cell->println(F("AT+CIICR"));
if(!successfulResponse(15000)) {
_status = CONNECTING;
return _status;
}
// chip is in state IP CONFIG or IP GPRSACT
_status = GPRS_READY;
return GPRS_READY;
}
