Components
A library for the SIM900 module to enable calling, answering, sending and receiving SMS messages
Dependents: Seeed_GPRS_Shield_GSM BluetoothNONIN HealthCare_Graduation
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GSM
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Components
Revision 10:24671d8aa0c9, committed 2014-05-13
- Comitter:
- screamer
- Date:
- Tue May 13 14:43:57 2014 +0000
- Parent:
- 9:2f5445178940
- Commit message:
- Change the class name to GSM because this is what it does.
Changed in this revision
diff -r 2f5445178940 -r 24671d8aa0c9 GPRS.cpp
--- a/GPRS.cpp Tue May 13 14:32:33 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,341 +0,0 @@
-/*
- gprs.cpp
- 2013 Copyright (c) Seeed Technology Inc. All right reserved.
-
- Author:lawliet.zou@gmail.com
- 2013-11-14
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-#include "GPRS.h"
-
-int GPRS::readBuffer(char *buffer,int count)
-{
- int i = 0;
- timeCnt.start(); // start timer
- while(1) {
- while (gprsSerial.readable()) {
- char c = gprsSerial.getc();
- if (c == '\r' || c == '\n') c = '$';
- buffer[i++] = c;
- if(i > count)break;
- }
- if(i > count)break;
- if(timeCnt.read() > DEFAULT_TIMEOUT) {
- timeCnt.stop();
- timeCnt.reset();
- break;
- }
- }
- wait(0.5);
- while(gprsSerial.readable()) { // display the other thing..
- char c = gprsSerial.getc();
- }
- return 0;
-}
-
-void cleanBuffer(char *buffer, int count)
-{
- for(int i=0; i < count; i++) {
- buffer[i] = '\0';
- }
-}
-
-void GPRS::sendCmd(char *cmd)
-{
- gprsSerial.puts(cmd);
-}
-
-int GPRS::waitForResp(char *resp, int timeout)
-{
- int len = strlen(resp);
- int sum=0;
- timeCnt.start();
-
- while(1) {
- if(gprsSerial.readable()) {
- char c = gprsSerial.getc();
- sum = (c==resp[sum]) ? sum+1 : 0;
- if(sum == len)break;
- }
- if(timeCnt.read() > timeout) { // time out
- timeCnt.stop();
- timeCnt.reset();
- return -1;
- }
- }
- timeCnt.stop(); // stop timer
- timeCnt.reset(); // clear timer
- while(gprsSerial.readable()) { // display the other thing..
- char c = gprsSerial.getc();
- }
-
- return 0;
-}
-
-int GPRS::sendCmdAndWaitForResp(char *cmd, char *resp, int timeout)
-{
- sendCmd(cmd);
- return waitForResp(resp,timeout);
-}
-
-int GPRS::powerCheck(void)
-{
- return sendCmdAndWaitForResp("AT\r\n", "OK", 2);
-}
-
-int GPRS::init(void)
-{
- for(int i = 0; i < 3; i++){
- sendCmdAndWaitForResp("AT\r\n", "OK", DEFAULT_TIMEOUT);
- wait(0.5);
- }
- if(0 != checkSIMStatus()) {
- return -1;
- }
- if(checkSignalStrength()<1) {
- return -1;
- }
- if(0 != settingSMS()) {
- return -1;
- }
- return 0;
-}
-
-int GPRS::checkSIMStatus(void)
-{
- char gprsBuffer[30];
- int count = 0;
- cleanBuffer(gprsBuffer,30);
- while(count < 3) {
- sendCmd("AT+CPIN?\r\n");
- readBuffer(gprsBuffer,30);
- if((NULL != strstr(gprsBuffer,"+CPIN: READY"))) {
- break;
- }
- count++;
- wait(1);
- }
-
- if(count == 3) {
- return -1;
- }
- return 0;
-}
-
-int GPRS::checkSignalStrength(void)
-{
- char gprsBuffer[100];
- int index,count = 0;
- cleanBuffer(gprsBuffer,100);
- while(count < 3) {
- sendCmd("AT+CSQ\r\n");
- readBuffer(gprsBuffer,25);
- if(sscanf(gprsBuffer, "AT+CSQ$$$$+CSQ: %d", &index)>0) {
- break;
- }
- count++;
- wait(1);
- }
- if(count == 3) {
- return -1;
- }
- return index;
-}
-
-int GPRS::settingSMS(void)
-{
- if(0 != sendCmdAndWaitForResp("AT+CNMI=2,2\r\n", "OK", DEFAULT_TIMEOUT)) {
- return -1;
- }
- if(0 != sendCmdAndWaitForResp("AT+CMGF=1\r\n", "OK", DEFAULT_TIMEOUT)) {
- return -1;
- }
- return 0;
-}
-
-int GPRS::sendSMS(char *number, char *data)
-{
- char cmd[64];
- while(gprsSerial.readable()) {
- char c = gprsSerial.getc();
- }
- snprintf(cmd, sizeof(cmd),"AT+CMGS=\"%s\"\r\n",number);
- if(0 != sendCmdAndWaitForResp(cmd,">",DEFAULT_TIMEOUT)) {
- return -1;
- }
- wait(1);
- gprsSerial.puts(data);
- gprsSerial.putc((char)0x1a);
- return 0;
-}
-
-int GPRS::readSMS(char *message, int index)
-{
- int i = 0;
- char gprsBuffer[100];
- char *p,*s;
- gprsSerial.printf("AT+CMGR=%d\r\n",index);
- cleanBuffer(gprsBuffer,100);
- readBuffer(gprsBuffer,100);
- if(NULL == ( s = strstr(gprsBuffer,"+CMGR"))) {
- return -1;
- }
- if(NULL != ( s = strstr(gprsBuffer,"+32"))) {
- p = s + 6;
- while((*p != '$')&&(i < SMS_MAX_LENGTH-1)) {
- message[i++] = *(p++);
- }
- message[i] = '\0';
- }
- return 0;
-}
-
-int GPRS::deleteSMS(int index)
-{
- char cmd[32];
- snprintf(cmd,sizeof(cmd),"AT+CMGD=%d\r\n",index);
- sendCmd(cmd);
- return 0;
-}
-
-int GPRS::getSMS(char* message)
-{
- if(NULL != messageBuffer) {
- strncpy(message,messageBuffer,SMS_MAX_LENGTH);
- }
- return 0;
-}
-
-int GPRS::callUp(char *number)
-{
- if(0 != sendCmdAndWaitForResp("AT+COLP=1\r\n","OK",5)) {
- return -1;
- }
- wait(1);
- gprsSerial.printf("\r\nATD%s;\r\n",NULL==number?phoneNumber:number);
- return 0;
-}
-
-int GPRS::answer(void)
-{
- gprsSerial.printf("ATA\r\n");
- return 0;
-}
-
-int GPRS::loopHandle(void)
-{
- char gprsBuffer[100];
- int i;
- char *s = NULL;
- while(gprsSerial.readable()) {
- char c = gprsSerial.getc();
- }
- wait(0.5);
-START:
- cleanBuffer(gprsBuffer,100);
- i = 0;
- while(1) {
- if(gprsSerial.readable()) {
- timeCnt.start(); // start timer
- while(1) {
- while (gprsSerial.readable()) {
- char c = gprsSerial.getc();
- if (c == '\r' || c == '\n') c = '$';
- gprsBuffer[i] = c;
- i++;
- if(i > 100) {
- i = 0;
- break;
- }
- }
- if(timeCnt.read() > 2) { // time out
- timeCnt.stop();
- timeCnt.reset();
- break;
- }
- }
- break;
- }
- }
- if(NULL != strstr(gprsBuffer,"RING")) {
- return MESSAGE_RING;
- } else if(NULL != (s = strstr(gprsBuffer,"+CMT"))) { //SMS: $$+CMTI: "SM",24$$
- if(NULL != (s = strstr(gprsBuffer,"+32"))) {
- s += 6;
- int i = 0;
- cleanBuffer(messageBuffer,SMS_MAX_LENGTH);
- while((*s != '$')&&(i < SMS_MAX_LENGTH-1)) {
- messageBuffer[i++] = *(s++);
- }
- messageBuffer[i] = '\0';
- return MESSAGE_SMS;
- } else {
- goto START;
- }
- } else {
- goto START;
- }
-}
-
-int GPRS::networkInit(char* apn, char* userName, char* passWord)
-{
- char cstt[64];
- snprintf(cstt,sizeof(cstt),"AT+CSTT=\"%s\",\"%s\",\"%s\"\r\n",apn,userName,passWord);
- if(0 != sendCmdAndWaitForResp(cstt, "OK", DEFAULT_TIMEOUT)) {
- return -1;
- }
- return 0;
-}
-
-int GPRS::connectTCP(char *ip, char *port)
-{
- char cipstart[64];
-#if 0
- if(0 != sendCmdAndWaitForResp("AT+CSTT=\"CMNET\",\"\",\"\"\r\n", "OK", 5)) {
- return -1;
- }
-#endif
- sprintf(cipstart, "AT+CIPSTART=\"TCP\",\"%s\",\"%s\"\r\n", ip, port);
- if(0 != sendCmdAndWaitForResp(cipstart, "OK", DEFAULT_TIMEOUT)) {
- return -1;
- }
- return 0;
-}
-int GPRS::sendTCPData(char *data)
-{
- char cmd[64];
- int len = strlen(data);
- snprintf(cmd,sizeof(cmd),"AT+CIPSEND=%d\r\n",len);
- if(0 != sendCmdAndWaitForResp(cmd,">",DEFAULT_TIMEOUT)) {
- return -1;
- }
- if(0 != sendCmdAndWaitForResp(data,"OK",DEFAULT_TIMEOUT)) {
- return -1;
- }
- return 0;
-}
-
-int GPRS::closeTCP(void)
-{
- sendCmd("AT+CIPCLOSE\r\n");
- return 0;
-}
-
-int GPRS::shutTCP(void)
-{
- sendCmd("AT+CIPSHUT\r\n");
- return 0;
-}
diff -r 2f5445178940 -r 24671d8aa0c9 GPRS.h
--- a/GPRS.h Tue May 13 14:32:33 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,221 +0,0 @@
-/*
- gprs.h
- 2013 Copyright (c) Seeed Technology Inc. All right reserved.
-
- Author:lawliet.zou@gmail.com
- 2013-11-14
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#ifndef __GPRS_H__
-#define __GPRS_H__
-
-#include <stdio.h>
-#include "mbed.h"
-
-#define DEFAULT_TIMEOUT 5
-#define SMS_MAX_LENGTH 16
-
-
-enum GPRS_MESSAGE {
- MESSAGE_RING = 0,
- MESSAGE_SMS = 1,
- MESSAGE_ERROR
-};
-
-
-/** GPRS class.
- * Used for mobile communication. attention that GPRS module communicate with MCU in serial protocol
- */
-class GPRS
-{
-public:
- /** Create GPRS instance
- * @param tx uart transmit pin to communicate with GPRS module
- * @param rx uart receive pin to communicate with GPRS module
- * @param baudRate baud rate of uart communication
- * @param number default phone number during mobile communication
- */
- GPRS(PinName tx, PinName rx, int baudRate,char *number) : gprsSerial(tx, rx) {
- //gprsSerial.baud(baudRate);
- phoneNumber = number;
- };
-
- int powerCheck(void);
- /** init GPRS module including SIM card check & signal strength & network check
- * @returns
- * 0 on success,
- * -1 on error
- */
- int init(void);
-
- /** Check SIM card' Status
- * @returns
- * 0 on success,
- * -1 on error
- */
- int checkSIMStatus(void);
-
- /** Check signal strength
- * @returns
- * signal strength in number(ex 3,4,5,6,7,8...) on success,
- * -1 on error
- */
- int checkSignalStrength(void);
-
- /** Set SMS format and processing mode
- * @returns
- * 0 on success,
- * -1 on error
- */
- int settingSMS(void);
-
- /** Send text SMS
- * @param *number phone number which SMS will be send to
- * @param *data message that will be send to
- * @returns
- * 0 on success,
- * -1 on error
- */
- int sendSMS(char *number, char *data);
-
- /** Read SMS by index
- * @param *message buffer used to get SMS message
- * @param index which SMS message to read
- * @returns
- * 0 on success,
- * -1 on error
- */
- int readSMS(char *message, int index);
-
- /** Delete SMS message on SIM card
- * @param *index the index number which SMS message will be delete
- * @returns
- * 0 on success,
- * -1 on error
- */
- int deleteSMS(int index);
-
- /** Read SMS when coming a message,it will be store in messageBuffer.
- * @param message buffer used to get SMS message
- */
- int getSMS(char* message);
-
- /** Call someone
- * @param *number the phone number which you want to call
- * @returns
- * 0 on success,
- * -1 on error
- */
- int callUp(char *number);
-
- /** Auto answer if coming a call
- * @returns
- * 0 on success,
- * -1 on error
- */
- int answer(void);
-
- /** A loop to wait for some event. if a call comes in, it will auto answer it and if a SMS message comes in, it will read the message
- * @param *check whether to check phone number when get event
- * @returns
- * 0 on success,
- * -1 on error
- */
- int loopHandle(void);
-
- /** GPRS network init
- * @param *apn Access Point Name to connect network
- * @param *userName general is empty
- * @param *passWord general is empty
- */
-
- int networkInit(char* apn, char* userName = NULL, char* passWord = NULL);
- /** Build TCP connect
- * @param *ip ip address which will connect to
- * @param *port TCP server' port number
- * @returns
- * 0 on success,
- * -1 on error
- */
- int connectTCP(char *ip, char *port);
-
- /** Send data to TCP server
- * @param *data data that will be send to TCP server
- * @returns
- * 0 on success,
- * -1 on error
- */
- int sendTCPData(char *data);
-
- /** Close TCP connection
- * @returns
- * 0 on success,
- * -1 on error
- */
- int closeTCP(void);
-
- /** Close TCP service
- * @returns
- * 0 on success,
- * -1 on error
- */
- int shutTCP(void);
-
- Serial gprsSerial;
- //USBSerial pc;
-
-private:
- /** Read from GPRS module and save to buffer array
- * @param *buffer buffer array to save what read from GPRS module
- * @param *count the maximal bytes number read from GPRS module
- * @returns
- * 0 on success,
- * -1 on error
- */
- int readBuffer(char *buffer,int count);
-
- /** Send AT command to GPRS module
- * @param *cmd command array which will be send to GPRS module
- */
- void sendCmd(char *cmd);
-
- /** Check GPRS module response before timeout
- * @param *resp correct response which GPRS module will return
- * @param *timeout waiting seconds till timeout
- * @returns
- * 0 on success,
- * -1 on error
- */
- int waitForResp(char *resp, int timeout);
-
- /** Send AT command to GPRS module and wait for correct response
- * @param *cmd AT command which will be send to GPRS module
- * @param *resp correct response which GPRS module will return
- * @param *timeout waiting seconds till timeout
- * @returns
- * 0 on success,
- * -1 on error
- */
- int sendCmdAndWaitForResp(char *cmd, char *resp, int timeout);
-
- Timer timeCnt;
- char *phoneNumber;
- char messageBuffer[SMS_MAX_LENGTH];
-};
-
-#endif
-
diff -r 2f5445178940 -r 24671d8aa0c9 GSM.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/GSM.cpp Tue May 13 14:43:57 2014 +0000
@@ -0,0 +1,341 @@
+/*
+ GSM.cpp
+ 2013 Copyright (c) Seeed Technology Inc. All right reserved.
+
+ Author:lawliet.zou@gmail.com
+ 2013-11-14
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+#include "GSM.h"
+
+int GSM::readBuffer(char *buffer,int count)
+{
+ int i = 0;
+ timeCnt.start(); // start timer
+ while(1) {
+ while (gprsSerial.readable()) {
+ char c = gprsSerial.getc();
+ if (c == '\r' || c == '\n') c = '$';
+ buffer[i++] = c;
+ if(i > count)break;
+ }
+ if(i > count)break;
+ if(timeCnt.read() > DEFAULT_TIMEOUT) {
+ timeCnt.stop();
+ timeCnt.reset();
+ break;
+ }
+ }
+ wait(0.5);
+ while(gprsSerial.readable()) { // display the other thing..
+ char c = gprsSerial.getc();
+ }
+ return 0;
+}
+
+void cleanBuffer(char *buffer, int count)
+{
+ for(int i=0; i < count; i++) {
+ buffer[i] = '\0';
+ }
+}
+
+void GSM::sendCmd(char *cmd)
+{
+ gprsSerial.puts(cmd);
+}
+
+int GSM::waitForResp(char *resp, int timeout)
+{
+ int len = strlen(resp);
+ int sum=0;
+ timeCnt.start();
+
+ while(1) {
+ if(gprsSerial.readable()) {
+ char c = gprsSerial.getc();
+ sum = (c==resp[sum]) ? sum+1 : 0;
+ if(sum == len)break;
+ }
+ if(timeCnt.read() > timeout) { // time out
+ timeCnt.stop();
+ timeCnt.reset();
+ return -1;
+ }
+ }
+ timeCnt.stop(); // stop timer
+ timeCnt.reset(); // clear timer
+ while(gprsSerial.readable()) { // display the other thing..
+ char c = gprsSerial.getc();
+ }
+
+ return 0;
+}
+
+int GSM::sendCmdAndWaitForResp(char *cmd, char *resp, int timeout)
+{
+ sendCmd(cmd);
+ return waitForResp(resp,timeout);
+}
+
+int GSM::powerCheck(void)
+{
+ return sendCmdAndWaitForResp("AT\r\n", "OK", 2);
+}
+
+int GSM::init(void)
+{
+ for(int i = 0; i < 3; i++){
+ sendCmdAndWaitForResp("AT\r\n", "OK", DEFAULT_TIMEOUT);
+ wait(0.5);
+ }
+ if(0 != checkSIMStatus()) {
+ return -1;
+ }
+ if(checkSignalStrength()<1) {
+ return -1;
+ }
+ if(0 != settingSMS()) {
+ return -1;
+ }
+ return 0;
+}
+
+int GSM::checkSIMStatus(void)
+{
+ char gprsBuffer[30];
+ int count = 0;
+ cleanBuffer(gprsBuffer,30);
+ while(count < 3) {
+ sendCmd("AT+CPIN?\r\n");
+ readBuffer(gprsBuffer,30);
+ if((NULL != strstr(gprsBuffer,"+CPIN: READY"))) {
+ break;
+ }
+ count++;
+ wait(1);
+ }
+
+ if(count == 3) {
+ return -1;
+ }
+ return 0;
+}
+
+int GSM::checkSignalStrength(void)
+{
+ char gprsBuffer[100];
+ int index,count = 0;
+ cleanBuffer(gprsBuffer,100);
+ while(count < 3) {
+ sendCmd("AT+CSQ\r\n");
+ readBuffer(gprsBuffer,25);
+ if(sscanf(gprsBuffer, "AT+CSQ$$$$+CSQ: %d", &index)>0) {
+ break;
+ }
+ count++;
+ wait(1);
+ }
+ if(count == 3) {
+ return -1;
+ }
+ return index;
+}
+
+int GSM::settingSMS(void)
+{
+ if(0 != sendCmdAndWaitForResp("AT+CNMI=2,2\r\n", "OK", DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ if(0 != sendCmdAndWaitForResp("AT+CMGF=1\r\n", "OK", DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ return 0;
+}
+
+int GSM::sendSMS(char *number, char *data)
+{
+ char cmd[64];
+ while(gprsSerial.readable()) {
+ char c = gprsSerial.getc();
+ }
+ snprintf(cmd, sizeof(cmd),"AT+CMGS=\"%s\"\r\n",number);
+ if(0 != sendCmdAndWaitForResp(cmd,">",DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ wait(1);
+ gprsSerial.puts(data);
+ gprsSerial.putc((char)0x1a);
+ return 0;
+}
+
+int GSM::readSMS(char *message, int index)
+{
+ int i = 0;
+ char gprsBuffer[100];
+ char *p,*s;
+ gprsSerial.printf("AT+CMGR=%d\r\n",index);
+ cleanBuffer(gprsBuffer,100);
+ readBuffer(gprsBuffer,100);
+ if(NULL == ( s = strstr(gprsBuffer,"+CMGR"))) {
+ return -1;
+ }
+ if(NULL != ( s = strstr(gprsBuffer,"+32"))) {
+ p = s + 6;
+ while((*p != '$')&&(i < SMS_MAX_LENGTH-1)) {
+ message[i++] = *(p++);
+ }
+ message[i] = '\0';
+ }
+ return 0;
+}
+
+int GSM::deleteSMS(int index)
+{
+ char cmd[32];
+ snprintf(cmd,sizeof(cmd),"AT+CMGD=%d\r\n",index);
+ sendCmd(cmd);
+ return 0;
+}
+
+int GSM::getSMS(char* message)
+{
+ if(NULL != messageBuffer) {
+ strncpy(message,messageBuffer,SMS_MAX_LENGTH);
+ }
+ return 0;
+}
+
+int GSM::callUp(char *number)
+{
+ if(0 != sendCmdAndWaitForResp("AT+COLP=1\r\n","OK",5)) {
+ return -1;
+ }
+ wait(1);
+ gprsSerial.printf("\r\nATD%s;\r\n",NULL==number?phoneNumber:number);
+ return 0;
+}
+
+int GSM::answer(void)
+{
+ gprsSerial.printf("ATA\r\n");
+ return 0;
+}
+
+int GSM::loopHandle(void)
+{
+ char gprsBuffer[100];
+ int i;
+ char *s = NULL;
+ while(gprsSerial.readable()) {
+ char c = gprsSerial.getc();
+ }
+ wait(0.5);
+START:
+ cleanBuffer(gprsBuffer,100);
+ i = 0;
+ while(1) {
+ if(gprsSerial.readable()) {
+ timeCnt.start(); // start timer
+ while(1) {
+ while (gprsSerial.readable()) {
+ char c = gprsSerial.getc();
+ if (c == '\r' || c == '\n') c = '$';
+ gprsBuffer[i] = c;
+ i++;
+ if(i > 100) {
+ i = 0;
+ break;
+ }
+ }
+ if(timeCnt.read() > 2) { // time out
+ timeCnt.stop();
+ timeCnt.reset();
+ break;
+ }
+ }
+ break;
+ }
+ }
+ if(NULL != strstr(gprsBuffer,"RING")) {
+ return MESSAGE_RING;
+ } else if(NULL != (s = strstr(gprsBuffer,"+CMT"))) { //SMS: $$+CMTI: "SM",24$$
+ if(NULL != (s = strstr(gprsBuffer,"+32"))) {
+ s += 6;
+ int i = 0;
+ cleanBuffer(messageBuffer,SMS_MAX_LENGTH);
+ while((*s != '$')&&(i < SMS_MAX_LENGTH-1)) {
+ messageBuffer[i++] = *(s++);
+ }
+ messageBuffer[i] = '\0';
+ return MESSAGE_SMS;
+ } else {
+ goto START;
+ }
+ } else {
+ goto START;
+ }
+}
+
+int GSM::networkInit(char* apn, char* userName, char* passWord)
+{
+ char cstt[64];
+ snprintf(cstt,sizeof(cstt),"AT+CSTT=\"%s\",\"%s\",\"%s\"\r\n",apn,userName,passWord);
+ if(0 != sendCmdAndWaitForResp(cstt, "OK", DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ return 0;
+}
+
+int GSM::connectTCP(char *ip, char *port)
+{
+ char cipstart[64];
+#if 0
+ if(0 != sendCmdAndWaitForResp("AT+CSTT=\"CMNET\",\"\",\"\"\r\n", "OK", 5)) {
+ return -1;
+ }
+#endif
+ sprintf(cipstart, "AT+CIPSTART=\"TCP\",\"%s\",\"%s\"\r\n", ip, port);
+ if(0 != sendCmdAndWaitForResp(cipstart, "OK", DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ return 0;
+}
+int GSM::sendTCPData(char *data)
+{
+ char cmd[64];
+ int len = strlen(data);
+ snprintf(cmd,sizeof(cmd),"AT+CIPSEND=%d\r\n",len);
+ if(0 != sendCmdAndWaitForResp(cmd,">",DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ if(0 != sendCmdAndWaitForResp(data,"OK",DEFAULT_TIMEOUT)) {
+ return -1;
+ }
+ return 0;
+}
+
+int GSM::closeTCP(void)
+{
+ sendCmd("AT+CIPCLOSE\r\n");
+ return 0;
+}
+
+int GSM::shutTCP(void)
+{
+ sendCmd("AT+CIPSHUT\r\n");
+ return 0;
+}
diff -r 2f5445178940 -r 24671d8aa0c9 GSM.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/GSM.h Tue May 13 14:43:57 2014 +0000
@@ -0,0 +1,221 @@
+/*
+ GSM.h
+ 2013 Copyright (c) Seeed Technology Inc. All right reserved.
+
+ Author:lawliet.zou@gmail.com
+ 2013-11-14
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#ifndef __GSM_H__
+#define __GSM_H__
+
+#include <stdio.h>
+#include "mbed.h"
+
+#define DEFAULT_TIMEOUT 5
+#define SMS_MAX_LENGTH 16
+
+
+enum GSM_MESSAGE {
+ MESSAGE_RING = 0,
+ MESSAGE_SMS = 1,
+ MESSAGE_ERROR
+};
+
+
+/** GSM class.
+ * Used for mobile communication. attention that GSM module communicate with MCU in serial protocol
+ */
+class GSM
+{
+public:
+ /** Create GSM instance
+ * @param tx uart transmit pin to communicate with GSM module
+ * @param rx uart receive pin to communicate with GSM module
+ * @param baudRate baud rate of uart communication
+ * @param number default phone number during mobile communication
+ */
+ GSM(PinName tx, PinName rx, int baudRate,char *number) : gprsSerial(tx, rx) {
+ //gprsSerial.baud(baudRate);
+ phoneNumber = number;
+ };
+
+ int powerCheck(void);
+ /** init GSM module including SIM card check & signal strength & network check
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int init(void);
+
+ /** Check SIM card' Status
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int checkSIMStatus(void);
+
+ /** Check signal strength
+ * @returns
+ * signal strength in number(ex 3,4,5,6,7,8...) on success,
+ * -1 on error
+ */
+ int checkSignalStrength(void);
+
+ /** Set SMS format and processing mode
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int settingSMS(void);
+
+ /** Send text SMS
+ * @param *number phone number which SMS will be send to
+ * @param *data message that will be send to
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int sendSMS(char *number, char *data);
+
+ /** Read SMS by index
+ * @param *message buffer used to get SMS message
+ * @param index which SMS message to read
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int readSMS(char *message, int index);
+
+ /** Delete SMS message on SIM card
+ * @param *index the index number which SMS message will be delete
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int deleteSMS(int index);
+
+ /** Read SMS when coming a message,it will be store in messageBuffer.
+ * @param message buffer used to get SMS message
+ */
+ int getSMS(char* message);
+
+ /** Call someone
+ * @param *number the phone number which you want to call
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int callUp(char *number);
+
+ /** Auto answer if coming a call
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int answer(void);
+
+ /** A loop to wait for some event. if a call comes in, it will auto answer it and if a SMS message comes in, it will read the message
+ * @param *check whether to check phone number when get event
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int loopHandle(void);
+
+ /** GSM network init
+ * @param *apn Access Point Name to connect network
+ * @param *userName general is empty
+ * @param *passWord general is empty
+ */
+
+ int networkInit(char* apn, char* userName = NULL, char* passWord = NULL);
+ /** Build TCP connect
+ * @param *ip ip address which will connect to
+ * @param *port TCP server' port number
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int connectTCP(char *ip, char *port);
+
+ /** Send data to TCP server
+ * @param *data data that will be send to TCP server
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int sendTCPData(char *data);
+
+ /** Close TCP connection
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int closeTCP(void);
+
+ /** Close TCP service
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int shutTCP(void);
+
+ Serial gprsSerial;
+ //USBSerial pc;
+
+private:
+ /** Read from GSM module and save to buffer array
+ * @param *buffer buffer array to save what read from GSM module
+ * @param *count the maximal bytes number read from GSM module
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int readBuffer(char *buffer,int count);
+
+ /** Send AT command to GSM module
+ * @param *cmd command array which will be send to GSM module
+ */
+ void sendCmd(char *cmd);
+
+ /** Check GSM module response before timeout
+ * @param *resp correct response which GSM module will return
+ * @param *timeout waiting seconds till timeout
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int waitForResp(char *resp, int timeout);
+
+ /** Send AT command to GSM module and wait for correct response
+ * @param *cmd AT command which will be send to GSM module
+ * @param *resp correct response which GSM module will return
+ * @param *timeout waiting seconds till timeout
+ * @returns
+ * 0 on success,
+ * -1 on error
+ */
+ int sendCmdAndWaitForResp(char *cmd, char *resp, int timeout);
+
+ Timer timeCnt;
+ char *phoneNumber;
+ char messageBuffer[SMS_MAX_LENGTH];
+};
+
+#endif
+