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arduino_shuttle.cpp
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arduino_shuttle.cpp
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/*
===================================================
Name :- Nishant Raj
Email :- raj.nishant360@gmail.com
College :- Indian School of Mines
Branch :- Computer Science and Engineering
Time :- 03 August 2015 (Monday) 02:00
===================================================*/
/*Following given code work for Arduino UNO with GSM900 and GPS bee module and code was compiled in arduino 1.6.1*/
#include <SoftwareSerial.h>
SoftwareSerial gprsSerial(2, 3);
int Gpsdata; // for incoming serial data
unsigned int finish =0; // indicate end of message
unsigned int pos_cnt=0; // position counter
unsigned int flg =0; // GPS flag
unsigned int com_cnt=0; // comma counter
String lati="0"; // latitude array
String lg="0"; // longitude array
String tm="0"; // time array
String save_lati , save_lg,save_spd; // save lattitude , longitude , ans , speed for calculation
char validity; // validity of data
char dir1 , dir2; // direction N/E
String datei ="0"; // date array
String spd ="0"; // save speed
char temp;
int long long count = 1;
void setup()
{
gprsSerial.begin(9600); // Start GPRS serial port at baud rate 9600 bits/sec
Serial.begin(9600); // Start Arduino serial port at baud rate 9600 bits/sec
Serial.println("Config SIM900..."); // For testing in serial monitor comment during actual use
delay(2000);
Serial.println("Done!...");
gprsSerial.flush();
Serial.flush();
// attach or detach from GPRS service
gprsSerial.println("AT+CGATT?"); /**Check if gprs is attached or not . If GPRS is attached then it will return 1 else 0 **/
delay(100);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"");
/*
AT+SAPBR=<cmd_type>,<cid>[,<ConParamTag>,<ConParamValue>]
<cmd_type>
0 -> Close bearer
1 -> Open bearer
2 -> Query bearer
3 -> Set bearer parameters
4 -> Get bearer parameters
5 -> Save the values of parameters to NVRAM
<cid>
Bearer profile identifier
<Status>
0 -> Bearer is connecting
1 -> Bearer is connected
2 -> Bearer is closing
3 -> Bearer is closed
<ConParamTag> Bearer parameter
"CONTYPE" -> Type of Internet connection. Value refer to <ConParamValue_ConType>
"APN" -> Access point name string: maximum 50 characters
"USER" -> User name string: maximum 50 characters
"PWD" -> Password string: maximum 50 characters
"PHONENUM" -> Phone number for CSD call
"RATE" -> CSD connection rate. For value refer to <ConParamValue_Rate>
<ConParamValue> Bearer paramer value
<ConParamValue_ConType>
"CSD" -> Circuit-switched data call.
"GPRS" -> GPRS connection.
<ConParamValue_Rate>
0 -> 2400
1 -> 4800
2 -> 9600
3 -> 14400
<IP_Addr> The IP address of bearer
*/
delay(2000);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=3,1,\"APN\",\"airtelgprs.com\"");
delay(2000);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=1,1");
delay(2000);
toSerial();
}
void loop()
{
// initialize http service
if(count%10 == 0){
count= 0 ;
gprsSerial.flush();
Serial.flush();
gprsSerial.println("AT+CIPSHUT");
/*
AT+CIPSHUT Deactivate GPRS PDP Context
If close is successful:
SHUT OK
If close fails:
ERROR
*/
delay(100);
toSerial();
gprsSerial.println("AT+CGATT?");
/*
AT+CGATT Attach or Detach from GPRS Service
Read Command
AT+CGATT?
Response
+CGATT: <state>
OK
Write Command
AT+CGATT=<state>
Response -> OK
If error is related to ME functionality: -> +CME ERROR: <err>
Parameter
<state> Indicates the state of GPRS attachment
0 -> Detached
1 -> Attached
*/
delay(100);
toSerial();
// attach or detach from GPRS service
gprsSerial.println("AT+CGATT=1");
delay(100);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"");
delay(2000);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=3,1,\"APN\",\"airtelgprs.com\"");
delay(2000);
toSerial();
// bearer settings
gprsSerial.println("AT+SAPBR=1,1");
delay(2000);
toSerial();
}
count++;
Receive_GPS_Data();
gprsSerial.println("AT+HTTPINIT");
/*
AT+HTTPINIT Initialize HTTP Service
Response OK if Successfull else ERROR
*/
delay(2000);
toSerial();
// set http param value
gprsSerial.println("AT+HTTPPARA=\"URL\",\"http://shuttletracker.hostei.com/?lat="+save_lati+"&long="+save_lg+"&speed="+save_spd+"\"");
/*
AT+HTTPPARA Set HTTP Parameters Value
Read Command -> AT+HTTPPARA?
Response
+ HTTPPARA:<HTTPParamTag>,<HTTPParamValue> OK
Write Command -> AT+HTTPPARA=<HTTPParamTag>,<HTTPParamValue>
<HTTPParamTag> HTTP Parameter
"CID" -> (Mandatory Parameter) Bearer profile identifier
"URL" -> (Mandatory Parameter) HTTP client URL
"http://'server'/'path':'tcpPort' "
"server": FQDN or IP-address
"path": path of file or directory
"tcpPort": default value is 80.
Refer to "IETF-RFC 2616".
"UA" -> The user agent string which is set by the application to identify the mobile.
Usually this parameter is set as operation system and software version information.
Default value is "SIMCOM_MODULE".
"PROIP" -> The IP address of HTTP proxy server
"PROPORT" -> The port of HTTP proxy server
"REDIR" -> This flag controls the redirection mechanism of the SIM900 when it is acting as HTTP client
(numeric). If the server sends a redirect code (range 30x), the client will automatically send a
new HTTP request when the flag is set to (1). Default value is 0 (no redirection).
"BREAK" -> Parameter for HTTP method "GET", used for resuming broken transfer.
"BREAKEND" -> Parameter for HTTP method "GET", used for resuming broken transfer. which is used together
with "BREAK",If the value of "BREAKEND" is bigger than "BREAK",
the transfer scope is from "BREAK" to "BREAKEND".
If the value of "BREAKEND" is smaller than "BREAK", the transfer scope is from "BREAK" to
the end of the file.
"TIMEOUT" -> If both "BREAKEND" and "BREAK" are 0, the resume broken transfer function is disabled.
HTTP session timeout value, scope: 30-1000 second.
Default value is 120 seconds. HTTP Parameter value.
Type and supported content depend on related <HTTPParamTag>.
"CONTENT" -> Used to set the “Content-Type” field in HTTP header.
<HTTPParamValue> -> HTTP Parameter value.Type and supported content depend on related <HTTPParamTag>.
*/
delay(2000);
toSerial();
// set http action type 0 = GET, 1 = POST, 2 = HEAD
gprsSerial.println("AT+HTTPACTION=0");
/*
AT+HTTPACTION -> HTTP Method Action
Test Command -> AT+HTTPACTION=?
Write Command -> AT+HTTPACTION=<Method>
<Method> HTTP method specification:
0 -> GET
1 -> POST
2 -> HEAD
<StatusCode> HTTP Status Code responded by remote server, it identifier refer to HTTP1.1(RFC2616)
100 Continue
101 Switching Protocols
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
206 Partial Content
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other
304 Not Modified
305 Use Proxy
307 Temporary Redirect
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Time-out
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Request Entity Too Large
414 Request-URI Too Large
415 Unsupported Media Type
416 Requested range not satisfiable
417 Expectation Failed
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Time-out
505 HTTP Version not supported
600 Not HTTP PDU
601 Network Error
602 No memory
603 DNS Error
604 Stack Busy
<DataLen> the length of data got
*/
delay(6000);
toSerial();
// read server response
gprsSerial.println("AT+HTTPREAD");
/*
AT+HTTPREAD -> Read the HTTP Server Response
Test Command -> AT+HTTPREAD=?
Response -> +HTTPREAD: (list of supported <start_address>s),(list of supported<byte_size>s) OK
Write Command -> AT+HTTPREAD=<start_address>,<byte_size>
Response
+HTTPREAD: <date_len> <data> OK
Read data when AT+HTTPACTION=0 or AT+HTTPDATA is executed.
If<byte_size> is bigger than the data size received, module will only return actual data size.
If error is related to ME functionality: +CME ERROR: <err>
Parameters:-
<data> -> Data from HTTP server or user input.
<start_address> -> The starting point for data output. 1-318976 or 1-102400 (bytes), the max value is due to
the module used.
<byte_size> -> The length for data output. 1-318976 or 1-102400 (bytes), the max value is due to
the module used.
<data_len> -> The actual length for data output.
Execution Command -> AT+HTTPREAD
Response
+HTTPREAD:<date_len><data> OK
Read all data when AT+HTTPACTION=0 or AT+HTTPDATA is executed.
If error is related to ME functionality: +CME ERROR: <err>
*/
delay(1000);
toSerial();
gprsSerial.println("");
gprsSerial.println("AT+HTTPTERM");
/*
AT+HTTPTERM -> Terminate HTTP Service
Test Command -> AT+HTTPTERM=?
Response -> OK
Execution command -> AT+HTTPTERM
Response ->
OK
If error is related to ME functionality:+CME ERROR: <err>
*/
toSerial();
delay(300);
gprsSerial.println("");
delay(30000);
finish=0;pos_cnt = 0;
}
void toSerial()
{
while(gprsSerial.available()!=0)
{
Serial.write(gprsSerial.read());
}
}
void Receive_GPS_Data()
{
while(finish==0){
while(Serial.available()>0){ // Check GPS data
Gpsdata = Serial.read();
temp = (char)Gpsdata;
//Serial.print(temp);
flg = 1;
if( temp=='$' && pos_cnt == 0) // finding GPRMC header
pos_cnt=1;
if( temp=='G' && pos_cnt == 1)
pos_cnt=2;
if( temp=='P' && pos_cnt == 2)
pos_cnt=3;
if( temp=='R' && pos_cnt == 3)
pos_cnt=4;
if( temp=='M' && pos_cnt == 4)
pos_cnt=5;
if( temp=='C' && pos_cnt==5 )
pos_cnt=6;
if(pos_cnt==6 && temp ==','){ // count commas in message
com_cnt++;
flg=0;
}
if(com_cnt == 1 && flg == 1){
tm += temp;
flg = 0;
}
if(com_cnt == 2 && flg == 1){
validity = temp;
flg = 0;
}
if(com_cnt==3 && flg==1){
lati+= temp; // latitude
flg=0;
}
if(com_cnt == 4 && flg == 1){
dir1 = temp;
flg = 0;
}
if(com_cnt==5 && flg==1){
lg+= temp; // Longitude
flg=0;
}
if(com_cnt == 6 && flg == 1){
dir2 = temp;
flg = 0;
}
if(com_cnt == 7 && flg == 1){
spd+= temp;
flg = 0;
}
if(com_cnt == 9 && flg == 1){
datei+= temp;
flg=0;
}
if( temp == '*' && com_cnt >= 5){
save_lati = lati;
save_spd = spd;
save_lg = lg;
lati.remove(0);
tm.remove(0);
lg.remove(0);
spd.remove(0);
datei.remove(0);
com_cnt = 0;
flg = 0;
finish = 1;
validity = 'L';
dir2 = 'A';
dir1 = 'A';
}
}
}
}