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lpGPRS.ino
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lpGPRS.ino
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#define BUFFSIZ 90 // plenty big
char buffer[BUFFSIZ];
char buffidx;
int retry = 5;
int sendCommand(char* command, char* resp, int delayTime=500, int reps=5, int numData=2);
void setupCommands(){
sendCommand("AT&F","OK");
sendCommand("ATE0","OK");
sendCommand("AT+CLIP=1","OK");
sendCommand("AT+CMEE=0","OK");
sendCommand("AT+CIPSHUT","SHUT");
}
void startUp(){
//delay(1000);
sendCommand("AT+CGATT?","+CGATT:");
// if(sendCommand("AT+CIFSR","10",1000,1)==1){
// sendCommand("AT+CIPCLOSE","CLOSE OK",500);
// sendCommand("AT+CIPSERVER=0","OK",500);
// }
sendCommand("AT+CIPSHUT","SHUT");
delay(1000);
sendCommand("AT+CSTT=\"wap.cingular\"","OK");
//Serial.println("WAP OK");
//delay(5000);
sendCommand("AT+CIICR","OK");
sendCommand("AT+CIFSR","10");
//sendCommand("AT+CGATT=0","OK",500);
//sendCommand("AT+CIPSPRT=0","OK");
sendCommand("AT+CIPSTART=\"tcp\",\"api.cosm.com\",\"8081\"","CONNECT OK",500,5,10);
//sendCommand("AT+CIPSTART=\"tcp\",\"www.google.com\",\"80\"","CONNECT OK");
//Serial.println("CONNECT OK");
GPRS_Serial.flush();
Serial.flush();
delay(1000);
//ATE0
//AT+CIPSHUT
//AT+CIFSR
}
int getAttachedGPRS(){
return sendCommand("AT+CGATT?","+CGATT: 1");
}
void sendStuff(){
GPRS_Serial.println("AT+CIPSEND");//begin send data to remote server
delay(500);
//ShowSerialData();
String humidity = "1031";//these 4 line code are imitate the real sensor data, because the demo did't add other sensor, so using 4 string variable to replace.
String moisture = "1242";//you can replace these four variable to the real sensor data in your project
String temperature = "30";//
String barometer = "60.56";//
//GPRS_Serial.print("GET / HTTP/1.1\nHost: www.google.com\nUser-Agent: Arduino\n\n");
GPRS_Serial.print("{\"method\": \"put\",\"resource\": \"/feeds/"+feedId+"/\",\"params\"");//here is the feed you apply from pachube
delay(200);
//ShowSerialData();
GPRS_Serial.print(": {},\"headers\": {\"X-PachubeApiKey\":");//in here, you should replace your pachubeapikey
delay(200);
//ShowSerialData();
GPRS_Serial.print(" \""+apiKey+"\"},\"body\":");//pachubeapikey
delay(200);
GPRS_Serial.print(" {\"version\": \"1.0.0\",\"datastreams\": ");
delay(200);
//ShowSerialData();
GPRS_Serial.println("[{\"id\": \"01\",\"current_value\": \"" + barometer + "\"},");
delay(200);
//ShowSerialData();
GPRS_Serial.println("{\"id\": \"02\",\"current_value\": \"" + humidity + "\"},");
delay(200);
//ShowSerialData();
GPRS_Serial.println("{\"id\": \"03\",\"current_value\": \"" + moisture + "\"},");
delay(200);
//ShowSerialData();
GPRS_Serial.println("{\"id\": \"04\",\"current_value\": \"" + temperature + "\"}]},\"token\": \"lee\"}");
delay(200);
// ShowSerialData();
GPRS_Serial.println((char)26);//sending
delay(4000);//waitting for reply, important! the time is base on the condition of internet
//GPRS_Serial.println();
ShowSerialData();
//GPRS_Serial.println("AT+CIPCLOSE");//close the connection
//sendCommand("AT+CIPCLOSE","CLOSE OK");
//delay(500);
//ShowSerialData();
}
void ShowSerialData()
{
Serial.print("SHOW: ");
while(GPRS_Serial.available()!=0)
Serial.write(GPRS_Serial.read());
}
int sendCommand(char* command, char* resp, int delayTime, int reps, int numData){
int returnVal;
//delay(100);
for(int i=0;i<reps;i++){
if (i > 0) delay(500);
GPRS_Serial.flush();
delay(100);
GPRS_Serial.println(command);
delay(100);
Serial.print(command);
Serial.print(": ");
//delay(10);
delay(delayTime);
// while(GPRS_Serial.available() < numData+1){
// unsigned long currentMillis = millis();
//
// if(currentMillis - previousMillis > delayTime) {
// Serial.println("TIMEOUT");
// break;
// }
// }
long previousMillis = millis();
//unsigned long currentMillis;
while(GPRS_Serial.available()) {
// unsigned long currentMillis = millis();
// if(currentMillis - previousMillis > delayTime) {
// Serial.println("TIMEOUT");
// break;
// }
readline();
//Serial.println("AFTER READLINE");
if (strncmp(buffer, resp,numData) == 0) {
Serial.println(buffer);
return 1;
}
}
Serial.print("FAILED: ");
Serial.println(buffer);
}
return 0;
}
void readline() {
memset(buffer,0,sizeof(buffer));
char c;
int i =0;
buffidx = 0; // start at begninning
//Serial.println("BEFORE READLINE");
long previousMillis = millis();
while (1) {
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > 20000) {
Serial.println("TIMEOUT");
return;
}
delay(2);
c=GPRS_Serial.read();
//Serial.print(buffidx);
if (c == -1)
continue;
if (c == '\n')
continue;
if ((buffidx == BUFFSIZ-1) || (c == '\r')) {
buffer[buffidx] = 0;
return;
}
buffer[buffidx++]= c;
delay(2);
}
}
/////////////////////////////////////////
///////* Power Functions for GPRS*///////
/////////////////////////////////////////
void powerOn(){
if(sendCommand("AT","OK",500,4) !=1){
Serial.println("Powering On...");
pinMode(9, OUTPUT);
digitalWrite(9,LOW);
delay(1000);
digitalWrite(9,HIGH);
delay(2000);
digitalWrite(9,LOW);
delay(4000);
//delay(15500);
if(sendCommand("AT+CREG?","+CREG: 0,1",500,10,10)==1){
Serial.println("REGISTERED");
//Serial.print(".");
}
power = true;
setupCommands();
}
else{
Serial.println("ALREADY ON");
power = true;
}
}
/////////////////////////////////////////
void powerOff(){
delay(1000);
pinMode(9, OUTPUT);
digitalWrite(9,LOW);
delay(1000);
digitalWrite(9,HIGH);
delay(2500);
digitalWrite(9,LOW);
power = false;
//delay(10500);
}