void GM862::init() {
delay(1000);
getStatus(); // identify if modem is turned on or not
Serial.println("GM862 MC Control");
// test to see if modem is on
if(!isOn()){
Serial.println("Turning on Modem ...");
switchOn(); // switch the modem on
delay(4000); // wait for the modem to boot
}
Serial.println("initializing modem ...");
char buf[BUF_LENGTH];
requestModem("AT", 1000, true, buf);
requestModem("AT+IPR=19200", 1000, true, buf);
requestModem("AT+CMEE=2", 1000, true, buf);
requestModem("AT+CNMI=2,1,2,1,0", 1000, true, buf);
requestModem("AT+CMGF=1", 1000, true, buf); // send text sms
state |= STATE_INITIALIZED;
checkNetwork(); // check the network availability
// modem.version(); // request modem version info
/* while (!modem.isRegistered()) {
delay(1000);
modem.checkNetwork(); // check the network availability
}*/
Serial.println("Modem is ready");
}
/*
* eplus
* internet.eplus.de, eplus, eplus
* o2
* internet, <>, <>
*/
void GM862::initGPRS() {
char buf[BUF_LENGTH];
Serial.println("initializing GPRS ...");
requestModem("AT+CGDCONT=1,\"IP\",\"internet\",\"0.0.0.0\",0,0", 1000, false, buf);
requestModem("AT#USERID=\"\"", 1000, false, buf);
requestModem("AT#PASSW=\"\"", 1000, false, buf);
Serial.println("done");
}
void GM862::version() {
char buf[BUF_LENGTH];
Serial.println("version info ...");
requestModem("AT+GMI", 1000, false, buf);
requestModem("AT+GMM", 1000, false, buf);
requestModem("AT+GMR", 1000, false, buf);
requestModem("AT+CSQ", 1000, false, buf);
Serial.println("done");
}
void GPRS::setup()
{
if(waiting==OFF)
{
char buf[BUF_LENGTH];requestModem(ATcommand[ATindex], 1000, true, buf);
timestart = millis();
waiting = ON;
timeout = 5000;
Serial.println("Started GM865");
ATindex++;
}
else
{
if(Serial3.available())
{
if(readterminal())
waiting = OFF;
else if(!checktimeout(timeout) || !readterminal())
{
gprsstate = setupstate;
ATindex=0;
waiting=OFF;
timeout = 5000;
timestart=0;
}
}
}
}
boolean GM862::getStatus(){
char buf[BUF_LENGTH];
byte r = 0;
if(state == STATE_NONE){
r = requestModem("AT",1000,true,buf);
// Serial.println("r: " + r);
if(r){
state |= STATE_ON;
}
}
return state;
}
void GM862::checkNetwork() {
char buf[BUF_LENGTH];
char result;
Serial.println("checking network ...");
requestModem("AT+CREG?", 1000, false, buf);
result = buf[20];
if (result == '1') {
state |= STATE_REGISTERED;
}
else {
state &= ~STATE_REGISTERED;
}
Serial.println("done");
}
void GM862::deleteMessage(String index){
char buf[BUF_LENGTH];
char cmdBuf[BUF_LENGTH];
char delflag;
String cmd = "AT+CMGD=";
if(index.equalsIgnoreCase("0")){
cmd.concat("1,3"); // delete all read messages from <memr> storage, sent and unsent mobile originated messages, leaving unread messages untouched
} else {
index.concat(",0");
cmd.concat(index);
}
cmd.toCharArray(cmdBuf,BUF_LENGTH);
requestModem(cmdBuf, 2000,true,buf);
}
void GM862::sendSMS(String number, String message) {
char buf[BUF_LENGTH];
char cmdbuf[30];
String Scmdbuf = "AT+CMGS=\"";
Serial.println("sending SMS ...");
Serial.println("number: "+number+" and message: "+message);
Scmdbuf.concat(number + "\"");
Scmdbuf.toCharArray(cmdbuf,30);
requestModem(cmdbuf, 1000, false, buf);
modem->print(message);
modem->print(0x1a, BYTE);
getsTimeout(buf, 2000);
// Serial.println(buf);
// Serial.println("done");
}
Position GM862::requestGPS(void) {
char buf[150];
Serial.println("requesting GPS position ...");
requestModem("AT$GPSACP", 2000, false, buf);
if (strlen(buf) > 29) {
actPosition.fix = 0; // invalidate actual position
parseGPS(buf, &actPosition);
if (actPosition.fix > 0) {
Serial.println(actPosition.fix);
state |= STATE_POSFIX;
}
}
else {
actPosition.fix = 0;
Serial.println("no fix");
state &= ~STATE_POSFIX;
}
return actPosition;
}
boolean GM862::openHTTP(char *domain) {
char buf[BUF_LENGTH];
char cmdbuf[50] = "AT#SKTD=0,80,\"";
byte i = 0;
boolean connect = false;
Serial.println("opening socket ...");
strcat(cmdbuf, domain);
strcat(cmdbuf, "\",0,0\r");
requestModem(cmdbuf, 1000, false, buf);
do {
getsTimeout(buf, 1000);
Serial.print("buf:");
Serial.println(buf);
if (strstr(buf, "CONNECT")) {
connect = true;
break;
}
} while (i++ < 10);
if (!connect) {
Serial.println("failed");
}
return (connect);
}
int GM862::parseMessage(char *buf){
char buf2[BUF_LENGTH];
int state;
String loc;
// Serial.print("pm -->");
// Serial.println(buf);
if(strstr(buf,"CMTI")){ // incoming txt message
Serial.println("getting message ... ");
loc = strstr(buf,",")+1;
loc = loc.trim();
// Serial.println("mem loc: " + loc);
requestModem("AT+CMGL=\"REC UNREAD\"",1000,false,buf2); // list message
while(!strstr(buf2,"+CMGL:")){ // wait until the txt message response is sent.
getsTimeout(buf2,100);
}
// Serial.print(buf2);
state = extractData(buf2);
Serial.print("State Parse: ");
Serial.println(state);
// delay(4500);
deleteMessage(loc);
}
return state;
}
void GM862::warmStartGPS() {
char buf[BUF_LENGTH];
Serial.println("warm start GPS ...");
requestModem("AT$GPSR=2", 1000, false, buf);
Serial.println("done");
}
void GM862::disableGPRS() {
char buf[BUF_LENGTH];
Serial.println("switching GPRS off ...");
requestModem("AT#GPRS=0", 1000, false, buf);
Serial.println("done");
}
