bool GPRS::readSMS(int messageIndex, char *message,int length)
{
int i = 0;
char gprsBuffer[100];
//char cmd[16];
char num[4];
char *p,*s;
sim900_check_with_cmd("AT+CMGF=1\r\n","OK\r\n",CMD);
delay(1000);
sim900_send_cmd("AT+CMGR=");
itoa(messageIndex, num, 10);
sim900_send_cmd(num);
sim900_send_cmd("\r\n");
// sprintf(cmd,"AT+CMGR=%d\r\n",messageIndex);
// sim900_send_cmd(cmd);
sim900_clean_buffer(gprsBuffer,sizeof(gprsBuffer));
sim900_read_buffer(gprsBuffer,sizeof(gprsBuffer),DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CMGR:"))){
if(NULL != ( s = strstr(s,"\r\n"))){
p = s + 2;
while((*p != '\r')&&(i < length-1)) {
message[i++] = *(p++);
}
message[i] = '\0';
return true;
}
}
return false;
}
int GPRS::send(const char * str, int len)
{
//char cmd[32];
char num[4];
if(len > 0){
//snprintf(cmd,sizeof(cmd),"AT+CIPSEND=%d\r\n",len);
//sprintf(cmd,"AT+CIPSEND=%d\r\n",len);
sim900_send_cmd("AT+CIPSEND=");
itoa(len, num, 10);
sim900_send_cmd(num);
if(!sim900_check_with_cmd("\r\n",">",CMD)) {
//if(!sim900_check_with_cmd(cmd,">",CMD)) {
return 0;
}
/*if(0 != sim900_check_with_cmd(str,"SEND OK\r\n", DEFAULT_TIMEOUT * 10 ,DATA)) {
return 0;
}*/
delay(500);
sim900_send_cmd(str);
delay(500);
sim900_send_End_Mark();
if(!sim900_wait_for_resp("SEND OK\r\n", DATA, DEFAULT_TIMEOUT * 10, DEFAULT_INTERCHAR_TIMEOUT * 10)) {
return 0;
}
}
return len;
}
bool GPRS::delBookEntry(int index)
{
char indexStr[4];
itoa(index, indexStr, 10);
sim900_flush_serial();
sim900_send_cmd(F("AT+CPBW="));
sim900_send_cmd(indexStr);
return sim900_check_with_cmd(F("\r"),"OK\r\n",CMD);
}
bool GPRS::callUp(char *number)
{
if(!sim900_check_with_cmd("AT+COLP=1\r\n","OK\r\n",CMD)) {
return false;
}
delay(1000);
sim900_send_cmd("ATD");
sim900_send_cmd(number);
sim900_send_cmd(";\r\n");
return true;
}
bool GPRS::deleteSMS(int index)
{
//char cmd[16];
char num[4];
//sprintf(cmd,"AT+CMGD=%d\r\n",index);
sim900_send_cmd("AT+CMGD=");
itoa(index, num, 10);
sim900_send_cmd(num);
//snprintf(cmd,sizeof(cmd),"AT+CMGD=%d\r\n",index);
//sim900_send_cmd(cmd);
//return 0;
// We have to wait OK response
//return sim900_check_with_cmd(cmd,"OK\r\n",CMD);
return sim900_check_with_cmd("\r","OK\r\n",CMD);
}
bool GPRS::callUp(char *number)
{
//char cmd[24];
if(!sim900_check_with_cmd("AT+COLP=1\r\n","OK\r\n",CMD)) {
return false;
}
delay(1000);
//HACERR quitar SPRINTF para ahorar memoria ???
//sprintf(cmd,"ATD%s;\r\n", number);
//sim900_send_cmd(cmd);
sim900_send_cmd("ATD");
sim900_send_cmd(number);
sim900_send_cmd(";\r\n");
return true;
}
bool GPRS::join()
{
char cmd[64];
char ipAddr[32];
//Select multiple connection
//sim900_check_with_cmd("AT+CIPMUX=1\r\n","OK",DEFAULT_TIMEOUT,CMD);
//set APN
snprintf(cmd,sizeof(cmd),"AT+CSTT=\"%s\",\"%s\",\"%s\"\r\n",_apn,_userName,_passWord);
sim900_check_with_cmd(cmd, "OK", DEFAULT_TIMEOUT,CMD);
//Brings up wireless connection
sim900_check_with_cmd("AT+CIICR\r\n","OK",DEFAULT_TIMEOUT,CMD);
//Get local IP address
sim900_send_cmd("AT+CIFSR\r\n");
sim900_read_buffer(ipAddr,32,2);
if(NULL != strstr(ipAddr,"AT+CIFSR")) {
_ip = str_to_ip(ipAddr+12);
if(_ip != 0) {
return true;
}
}
return false;
}
int GPRS::readSMS(int messageIndex, char *message, int length, char *phone, char *datetime)
{
/* Response is like:
AT+CMGR=2
+CMGR: "REC READ","XXXXXXXXXXX","","14/10/09,17:30:17+08"
SMS text here
So we need (more or lees), 80 chars plus expected message length in buffer. CAUTION FREE MEMORY
*/
int i = 0;
char gprsBuffer[80 + length];
char cmd[16];
char *p,*p2,*s;
sim900_check_with_cmd("AT+CMGF=1\r\n","OK\r\n",CMD);
suli_delay_ms(1000);
sprintf(cmd,"AT+CMGR=%d\r\n",messageIndex);
sim900_send_cmd(cmd);
sim900_clean_buffer(gprsBuffer,sizeof(gprsBuffer));
sim900_read_buffer(gprsBuffer,sizeof(gprsBuffer),DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CMGR:"))){
// Extract phone number string
p = strstr(s,",");
p2 = p + 2; //We are in the first phone number character
p = strstr((char *)(p2), "\"");
if (NULL != p) {
i = 0;
while (p2 < p) {
phone[i++] = *(p2++);
}
phone[i] = '\0';
}
// Extract date time string
p = strstr((char *)(p2),",");
p2 = p + 1;
p = strstr((char *)(p2), ",");
p2 = p + 2; //We are in the first date time character
p = strstr((char *)(p2), "\"");
if (NULL != p) {
i = 0;
while (p2 < p) {
datetime[i++] = *(p2++);
}
datetime[i] = '\0';
}
if(NULL != ( s = strstr(s,"\r\n"))){
i = 0;
p = s + 2;
while((*p != '\r')&&(i < length-1)) {
message[i++] = *(p++);
}
message[i] = '\0';
}
return 0;
}
return -1;
}
bool GPRS::getSubscriberNumber(char *number)
{
//AT+CNUM --> 7 + CR = 8
//+CNUM: "","+628157933874",145,7,4 --> CRLF + 45 + CRLF = 49
// -->
//OK --> CRLF + 2 + CRLF = 6
byte i = 0;
char gprsBuffer[65];
char *p,*s;
sim900_flush_serial();
sim900_send_cmd("AT+CNUM\r\n");
sim900_clean_buffer(gprsBuffer,65);
sim900_read_buffer(gprsBuffer,65,DEFAULT_TIMEOUT);
//Serial.print(gprsBuffer);
if(NULL != ( s = strstr(gprsBuffer,"+CNUM:"))) {
s = strstr((char *)(s),",");
s = s + 2; //We are in the first phone number character
p = strstr((char *)(s),"\""); //p is last character """
if (NULL != s) {
i = 0;
while (s < p) {
number[i++] = *(s++);
}
number[i] = '\0';
}
return true;
}
return false;
}
bool GPRS::getDateTime(char *buffer)
{
//AT+CCLK? --> 8 + CR = 9
//+CCLK: "14/11/13,21:14:41+04" --> CRLF + 29+ CRLF = 33
//
//OK --> CRLF + 2 + CRLF = 6
byte i = 0;
char gprsBuffer[50];
char *p,*s;
sim900_flush_serial();
sim900_send_cmd("AT+CCLK?\r");
sim900_clean_buffer(gprsBuffer,50);
sim900_read_buffer(gprsBuffer,50,DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CCLK:"))) {
s = strstr((char *)(s),"\"");
s = s + 1; //We are in the first phone number character
p = strstr((char *)(s),"\""); //p is last character """
if (NULL != s) {
i = 0;
while (s < p) {
buffer[i++] = *(s++);
}
buffer[i] = '\0';
}
return true;
}
return false;
}
bool GPRS::getSignalStrength(int *buffer)
{
//AT+CSQ --> 6 + CR = 10
//+CSQ: <rssi>,<ber> --> CRLF + 5 + CRLF = 9
//OK --> CRLF + 2 + CRLF = 6
byte i = 0;
char gprsBuffer[26];
char *p, *s;
char buffers[4];
sim900_flush_serial();
sim900_send_cmd("AT+CSQ\r");
sim900_clean_buffer(gprsBuffer, 26);
sim900_read_buffer(gprsBuffer, 26, DEFAULT_TIMEOUT);
if (NULL != (s = strstr(gprsBuffer, "+CSQ:"))) {
s = strstr((char *)(s), " ");
s = s + 1; //We are in the first phone number character
p = strstr((char *)(s), ","); //p is last character """
if (NULL != s) {
i = 0;
while (s < p) {
buffers[i++] = *(s++);
}
buffers[i] = '\0';
}
*buffer = atoi(buffers);
return true;
}
return false;
}
bool GPRS::getVcc(char *buffer)
{
//AT+CBC --> 6 + CR
//+CBC: 0,100,4241 --> CRLF + 16 + CRLF
//
//OK --> CRLF + 2 + CRLF
byte i = 0;
char gprsBuffer[50];
char *p,*s;
sim900_flush_serial();
sim900_send_cmd(F("AT+CBC\r"));
sim900_clean_buffer(gprsBuffer,50);
sim900_read_buffer(gprsBuffer,50,DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CBC:"))) {
s = strstr((char *)(s),",");
s = s + 1;
s = strstr((char *)(s), ",");
s = s + 1; //We are in the first Vcc character
p = s + 4; //p is last character
if (NULL != s) {
i = 0;
while (s < p) {
buffer[i++] = *(s++);
}
buffer[i] = '\0';
}
return true;
}
return false;
}
bool GPRS::getDateTime(char *buffer)
{
//AT+CCLK? --> 8 + CRLF = 10
//+CCLK: "14/11/13,21:14:41+04" --> 29+ CRLF = 31
// --> CRLF = 2
//OK
byte i = 0;
char gprsBuffer[46];
char *p,*s;
sim900_send_cmd("AT+CCLK?\r\n");
sim900_clean_buffer(gprsBuffer,43);
sim900_read_buffer(gprsBuffer,43,DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CCLK:"))) {
s = strstr((char *)(s),"\"");
s = s + 1; //We are in the first phone number character
p = strstr((char *)(s),"\""); //p is last character """
if (NULL != s) {
i = 0;
while (s < p) {
buffer[i++] = *(s++);
}
buffer[i] = '\0';
}
//We are going to flush serial data until OK is recieved
return sim900_wait_for_resp("OK\r\n", CMD);
}
return false;
}
bool GPRS::getLocation(const __FlashStringHelper *apn, float *longitude, float *latitude)
{
int i = 0;
char gprsBuffer[80];
char buffer[20];
char *s;
//send AT+SAPBR=3,1,"Contype","GPRS"
sim900_check_with_cmd("AT+SAPBR=3,1,\"Contype\",\"GPRS\"\r","OK\r\n",CMD);
//sen AT+SAPBR=3,1,"APN","GPRS_APN"
sim900_send_cmd("AT+SAPBR=3,1,\"APN\",\"");
if (apn) {
sim900_send_cmd(apn);
}
sim900_check_with_cmd("\"\r","OK\r\n",CMD);
//send AT+SAPBR =1,1
sim900_check_with_cmd("AT+SAPBR=1,1\r","OK\r\n",CMD);
//AT+CIPGSMLOC=1,1
sim900_flush_serial();
sim900_send_cmd("AT+CIPGSMLOC=1,1\r");
sim900_clean_buffer(gprsBuffer,sizeof(gprsBuffer));
sim900_read_buffer(gprsBuffer,sizeof(gprsBuffer),2*DEFAULT_TIMEOUT,6*DEFAULT_INTERCHAR_TIMEOUT);
//Serial.println(gprsBuffer);
if(NULL != ( s = strstr(gprsBuffer,"+CIPGSMLOC:")))
{
s = strstr((char *)s, ",");
s = s+1;
//Serial.println(*s);
i=0;
while(*(++s) != ',')
buffer[i++]=*s;
buffer[i] = 0;
*longitude = atof(buffer);
i=0;
while(*(++s) != ',')
buffer[i++]=*s;
buffer[i] = 0;
*latitude = atof(buffer);
return true;
}
return false;
}
//Here is where we ask for APN configuration, with F() so we can save MEMORY
bool GPRS::join(const __FlashStringHelper *apn, const __FlashStringHelper *userName, const __FlashStringHelper *passWord)
{
byte i;
char *p, *s;
char ipAddr[32];
//Select multiple connection
//sim900_check_with_cmd("AT+CIPMUX=1\r\n","OK",DEFAULT_TIMEOUT,CMD);
//set APN. OLD VERSION
//snprintf(cmd,sizeof(cmd),"AT+CSTT=\"%s\",\"%s\",\"%s\"\r\n",_apn,_userName,_passWord);
//sim900_check_with_cmd(cmd, "OK\r\n", DEFAULT_TIMEOUT,CMD);
sim900_send_cmd("AT+CSTT=\"");
if (apn) {
sim900_send_cmd(apn);
}
sim900_send_cmd("\",\"");
if (userName) {
sim900_send_cmd(userName);
}
sim900_send_cmd("\",\"");
if (passWord) {
sim900_send_cmd(passWord);
}
sim900_check_with_cmd("\"\r\n", "OK\r\n", CMD);
//Brings up wireless connection
sim900_check_with_cmd("AT+CIICR\r\n","OK\r\n", CMD);
//Get local IP address
sim900_send_cmd("AT+CIFSR\r\n");
sim900_clean_buffer(ipAddr,32);
sim900_read_buffer(ipAddr,32);
//Response:
//AT+CIFSR\r\n --> 8 + 2
//\r\n --> 0 + 2
//10.160.57.120\r\n --> 15 + 2 (max) : TOTAL: 29
//Response error:
//AT+CIFSR\r\n
//\r\n
//ERROR\r\n
if (NULL != strstr(ipAddr,"ERROR")) {
return false;
}
s = ipAddr + 12;
p = strstr((char *)(s),"\r\n"); //p is last character \r\n
if (NULL != s) {
i = 0;
while (s < p) {
ip_string[i++] = *(s++);
}
ip_string[i] = '\0';
}
_ip = str_to_ip(ip_string);
if(_ip != 0) {
return true;
}
return false;
}
String GPRS::getImei(){
char buf[32];
String imei(NULL);
sim900_send_cmd("AT+GSN\r\n");
sim900_read_buffer(buf,sizeof(buf),DEFAULT_TIMEOUT);
String response(buf);
if(strstr(buf,"OK") != NULL)
imei = response.substring(10, 25);
return imei;
};
int GPRS::callUp(char *number)
{
char cmd[24];
if(0 != sim900_check_with_cmd("AT+COLP=1\r\n","OK",DEFAULT_TIMEOUT,CMD)) {
return -1;
}
suli_delay_ms(1000);
sprintf(cmd,"ATD%s;\r\n", number);
sim900_send_cmd(cmd);
return 0;
}
bool GPRS::ntpSyncDateTime(int8_t timezone)
{
// e.g. "-105\0", this is not a valid value to pass to the SIM module, but we need to make sure not
// to cross boundaries of the char array
char timezoneString[5] = {'\0'};
if (sim900_check_with_cmd(F("AT+CNTPCID=1\r\n"), "OK\r\n", CMD) == false)
return false;
sim900_send_cmd(F("AT+CNTP=\"pool.ntp.org\","));
itoa(timezone, timezoneString, 10);
sim900_send_cmd(timezoneString);
if (sim900_check_with_cmd(F("\r\n"), "OK\r\n", CMD) == false)
return false;
return sim900_check_with_cmd(F("AT+CNTP\r\n"), "+CNTP: 1", CMD);
}
bool GPRS::sendSMS(char *number, char *data)
{
//char cmd[32];
if(!sim900_check_with_cmd("AT+CMGF=1\r\n", "OK\r\n", CMD)) { // Set message mode to ASCII
return false;
}
delay(500);
sim900_send_cmd("AT+CMGS=\"");
sim900_send_cmd(number);
//sprintf(cmd,"AT+CMGS=\"%s\"\r\n", number);
//snprintf(cmd, sizeof(cmd),"AT+CMGS=\"%s\"\r\n", number);
// if(!sim900_check_with_cmd(cmd,">",CMD)) {
if(!sim900_check_with_cmd("\"\r\n",">",CMD)) {
return false;
}
delay(1000);
sim900_send_cmd(data);
delay(500);
sim900_send_End_Mark();
return true;
}
bool GPRS::sendSMS(char *number, char *data)
{
// Set message mode to ASCII
if(!sim900_check_with_cmd("AT+CMGF=1\r\n", "OK\r\n", CMD)) {
return false;
}
delay(500);
sim900_send_cmd("AT+CMGS=\"");
sim900_send_cmd(number);
if(!sim900_check_with_cmd("\"\r\n",">",CMD)) {
return false;
}
delay(1000);
sim900_send_cmd(data);
delay(500);
sim900_send_End_Mark();
return true;
}
//Overload with F() macro to SAVE memory
bool GPRS::connect(Protocol ptl,const __FlashStringHelper *host, const __FlashStringHelper *port, int timeout, int chartimeout)
{
//char cmd[64];
char resp[96];
//sim900_clean_buffer(cmd,64);
if(ptl == TCP) {
sim900_send_cmd(F("AT+CIPSTART=\"TCP\",\"")); //%s\",%d\r\n",host, port);
} else if(ptl == UDP) {
sim900_send_cmd(F("AT+CIPSTART=\"UDP\",\"")); //%s\",%d\r\n",host, port);
} else {
return false;
}
sim900_send_cmd(host);
sim900_send_cmd(F("\","));
sim900_send_cmd(port);
sim900_send_cmd(F("\r\n"));
// Serial.print("Connect: "); Serial.println(cmd);
sim900_read_buffer(resp, 96, timeout, chartimeout);
// Serial.print("Connect resp: "); Serial.println(resp);
if(NULL != strstr(resp,"CONNECT")) { //ALREADY CONNECT or CONNECT OK
return true;
}
return false;
}
bool GPRS::sendUSSDSynchronous(char *ussdCommand, char *resultcode, char *response)
{
//AT+CUSD=1,"{command}"
//OK
//
//+CUSD:1,"{response}",{int}
byte i = 0;
char gprsBuffer[200];
char *p,*s;
sim900_clean_buffer(response, sizeof(response));
sim900_flush_serial();
sim900_send_cmd("AT+CUSD=1,\"");
sim900_send_cmd(ussdCommand);
sim900_send_cmd("\"\r");
if(!sim900_wait_for_resp("OK\r\n", CMD))
return false;
sim900_clean_buffer(gprsBuffer,200);
sim900_read_buffer(gprsBuffer,200,DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"+CUSD: "))) {
*resultcode = *(s+7);
resultcode[1] = '\0';
if(!('0' <= *resultcode && *resultcode <= '2'))
return false;
s = strstr(s,"\"");
s = s + 1; //We are in the first phone number character
p = strstr(s,"\""); //p is last character """
if (NULL != s) {
i = 0;
while (s < p) {
response[i++] = *(s++);
}
response[i] = '\0';
}
return true;
}
return false;
}
bool GPRS::addBookEntry(int index, const char* number, int type, const char *name)
{
char num[4];
sim900_send_cmd(F("AT+CPBW="));
if( index != -1 )
{
itoa(index, num, 10);
sim900_send_cmd(num);
}
sim900_send_cmd(F(",\""));
sim900_send_cmd(number);
sim900_send_cmd(F("\","));
itoa(type, num, 10);
sim900_send_cmd(num);
sim900_send_cmd(F(",\""));
sim900_send_cmd(name);
sim900_send_cmd(F("\""));
return sim900_check_with_cmd(F("\r"),"OK\r\n",CMD);
}
bool GPRS::connect(Protocol ptl,const char * host, int port, int timeout)
{
//char cmd[64];
char num[4];
char resp[96];
//sim900_clean_buffer(cmd,64);
if(ptl == TCP) {
sim900_send_cmd("AT+CIPSTART=\"TCP\",\"");
sim900_send_cmd(host);
sim900_send_cmd("\",");
itoa(port, num, 10);
sim900_send_cmd(num);
sim900_send_cmd("\r\n");
// sprintf(cmd, "AT+CIPSTART=\"TCP\",\"%s\",%d\r\n",host, port);
} else if(ptl == UDP) {
sim900_send_cmd("AT+CIPSTART=\"UDP\",\"");
sim900_send_cmd(host);
sim900_send_cmd("\",");
itoa(port, num, 10);
sim900_send_cmd(num);
sim900_send_cmd("\r\n");
// sprintf(cmd, "AT+CIPSTART=\"UDP\",\"%s\",%d\r\n",host, port);
} else {
return false;
}
delay(2000);
//sim900_send_cmd(cmd);
sim900_read_buffer(resp,96,timeout);
//Serial.print("Connect resp: "); Serial.println(resp);
if(NULL != strstr(resp,"CONNECT")) { //ALREADY CONNECT or CONNECT OK
return true;
}
return false;
}
bool GPRS::is_connected(void)
{
char resp[96];
sim900_send_cmd("AT+CIPSTATUS\r\n");
sim900_read_buffer(resp,sizeof(resp),DEFAULT_TIMEOUT);
if(NULL != strstr(resp,"CONNECTED")) {
//+CIPSTATUS: 1,0,"TCP","216.52.233.120","80","CONNECTED"
return true;
} else {
//+CIPSTATUS: 1,0,"TCP","216.52.233.120","80","CLOSED"
//+CIPSTATUS: 0,,"","","","INITIAL"
return false;
}
}
boolean GPRS::send(const char * str)
{
if(!sim900_check_with_cmd(F("AT+CIPSEND\r\n"),">",CMD)) {
return false;
}
delay(500);
sim900_send_cmd(str);
delay(500);
sim900_send_End_Mark();
if(!sim900_wait_for_resp("SEND OK\r\n", DATA, DEFAULT_TIMEOUT * 10, DEFAULT_INTERCHAR_TIMEOUT * 10)) {
return false;
}
return true;
}
int GPRS::isSMSunread()
{
char gprsBuffer[64]; //64 is enough to see +CMGL:
char *p,*s;
//List of all UNREAD SMS and DON'T change the SMS UNREAD STATUS
sim900_send_cmd("AT+CMGL=\"REC UNREAD\",1\r\n");
/*If you want to change SMS status to READ you will need to send:
AT+CMGL=\"REC UNREAD\"\r\n
This command will list all UNREAD SMS and change all of them to READ
If there is not SMS, response is (26 chars)
AT+CMGL="REC UNREAD",1
OK
If there is SMS, response is like (>64 chars)
AT+CMGL="REC UNREAD",1
+CMGL: 9,"REC UNREAD","XXXXXXXXX","","14/10/16,21:40:08+08"
Here SMS text.
OK
or
AT+CMGL="REC UNREAD",1
+CMGL: 9,"REC UNREAD","XXXXXXXXX","","14/10/16,21:40:08+08"
Here SMS text.
+CMGL: 10,"REC UNREAD","YYYYYYYYY","","14/10/16,21:40:08+08"
Here second SMS
OK
*/
sim900_clean_buffer(gprsBuffer,64);
sim900_read_buffer(gprsBuffer,64,DEFAULT_TIMEOUT);
if(NULL != ( s = strstr(gprsBuffer,"OK"))) {
//In 64 bytes "doesn't" fit whole +CMGL: response, if recieve only "OK"
// means you don't have any UNREAD SMS
return 0;
} else {
if(NULL != ( s = strstr(gprsBuffer,"+CMGL:"))) {
//There is at least one UNREAD SMS, get index/position
p = strstr((char *)gprsBuffer,":");
if (p != NULL) {
//We are going to flush serial data until OK is recieved
sim900_wait_for_resp("OK", DEFAULT_TIMEOUT, CMD);
return atoi(p+1);
}
} else {
return 0;
}
}
return -1;
}
bool GPRS::openBearer(const __FlashStringHelper *apn)
{
const uint8_t checkBearerRetryCount = 3;
int i;
//send AT+SAPBR=3,1,"Contype","GPRS"
if (sim900_check_with_cmd(F("AT+SAPBR=3,1,\"Contype\",\"GPRS\"\r"),"OK\r\n", CMD) == false)
return false;
//send AT+SAPBR=3,1,"APN","<apn>"
sim900_send_cmd(F("AT+SAPBR=3,1,\"APN\",\""));
if (apn) {
sim900_send_cmd(apn);
}
if (sim900_check_with_cmd(F("\"\r"),"OK\r\n", CMD) == false)
return false;
//send AT+SAPBR =1,1
if (sim900_check_with_cmd(F("AT+SAPBR=1,1\r\n"),"OK\r\n", CMD) == false)
return false;
for(i = 0; i < checkBearerRetryCount; i++)
{
// 3 means "closed"
uint8_t bearerStatus = 3;
// 1 means "connected"
queryBearer(&bearerStatus);
if (bearerStatus == 1)
break;
}
if (i >= checkBearerRetryCount)
return false;
return true;
}
bool GPRS::sendSMS(const char *number, const char *data)
{
//180822 In the init function
//if(!sim900_check_with_cmd(F("AT+CMGF=1\r\n"), "OK\r\n", CMD)) { // Set message mode to ASCII
// return false;
//}
//delay(500);
sim900_flush_serial();
sim900_send_cmd(F("AT+CMGS=\""));
sim900_send_cmd(number);
//sprintf(cmd,"AT+CMGS=\"%s\"\r\n", number);
//snprintf(cmd, sizeof(cmd),"AT+CMGS=\"%s\"\r\n", number);
// if(!sim900_check_with_cmd(cmd,">",CMD)) {
if(!sim900_check_with_cmd(F("\"\r\n"),">",CMD)) {
return false;
}
delay(1000);
sim900_send_cmd(data);
delay(500);
sim900_send_End_Mark();
return sim900_wait_for_resp("OK\r\n", CMD, 20);
}
boolean GPRS::send(const __FlashStringHelper* str)
{
if(!sim900_check_with_cmd(F("AT+CIPSEND\r\n"),">",CMD)) {
return false;
}
sim900_send_cmd(str);
sim900_send_End_Mark();
if(!sim900_wait_for_resp("SEND OK\r\n", DATA, DEFAULT_TIMEOUT, DEFAULT_INTERCHAR_TIMEOUT)) {
return false;
}
return true;
}
