Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Sim900 GPRS Connection

Status
Not open for further replies.
A

amirsde

Newbie level 5
Joined
Jun 26, 2015
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
57
Hi all
I have a question about GSM modems
I have a avr micro and have a variable with some value
I want to send these values to my web host database table .
I'm not familiar with GSM modems
I know that need a gprs connection . but how can send a variable with sim900 and save it on DB ?
Also how can I send data using sim900?
I get confused :?::?::?:
Please help me
 

this function is to send the sensor data to the pachube, you can see the new value in the pachube after execute this function. Send a http request to the website, upload data to pachube.com by TCP connection,
Remote Weather station or a Wireless Sensor Network : Create a sensor node capable of transferring sensor data (like from a weather station - temperature, humidity etc.) to a web server (like pachube.com).


Code: 
void Send2web()
{
  mySerial.println("AT+CGATT?");
  delay(1000);
 
  ShowSerialData();
 
  mySerial.println("AT+CSTT=\"CMNET\"");//start task and setting the APN,
  delay(1000);
 
  ShowSerialData();
 
  mySerial.println("AT+CIICR");//bring up wireless connection
  delay(3000);
 
  ShowSerialData();
 
  mySerial.println("AT+CIFSR");//get local IP adress
  delay(2000);
 
  ShowSerialData();
 
  mySerial.println("AT+CIPSPRT=0");
  delay(3000);
 
  ShowSerialData();
 
  mySerial.println("AT+CIPSTART=\"tcp\",\"api.cosm.com\",\"8081\"");//start up the connection
  delay(2000);
 
  ShowSerialData();
 
  mySerial.println("AT+CIPSEND");//begin send data to remote server
  delay(4000);
  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";//
  mySerial.print("{\"method\": \"put\",\"resource\": \"/feeds/42742/\",\"params\"");//here is the feed you apply from pachube
  delay(500);
  ShowSerialData();
  mySerial.print(": {},\"headers\": {\"X-PachubeApiKey\":");//in here, you should replace your pachubeapikey
  delay(500);
  ShowSerialData();
  mySerial.print(" \"_cXwr5LE8qW4a296O-cDwOUvfddFer5pGmaRigPsiO0");//pachubeapikey
  delay(500);
  ShowSerialData();
  mySerial.print("jEB9OjK-W6vej56j9ItaSlIac-hgbQjxExuveD95yc8BttXc");//pachubeapikey
  delay(500);
  ShowSerialData();
  mySerial.print("Z7_seZqLVjeCOmNbEXUva45t6FL8AxOcuNSsQS\"},\"body\":");
  delay(500);
  ShowSerialData();
  mySerial.print(" {\"version\": \"1.0.0\",\"datastreams\": ");
  delay(500);
  ShowSerialData();
  mySerial.println("[{\"id\": \"01\",\"current_value\": \"" + barometer + "\"},");
  delay(500);
  ShowSerialData();
  mySerial.println("{\"id\": \"02\",\"current_value\": \"" + humidity + "\"},");
  delay(500);
  ShowSerialData();
  mySerial.println("{\"id\": \"03\",\"current_value\": \"" + moisture + "\"},");
  delay(500);
  ShowSerialData();
  mySerial.println("{\"id\": \"04\",\"current_value\": \"" + temperature + "\"}]},\"token\": \"lee\"}");
 
 
  delay(500);
  ShowSerialData();
 
  mySerial.println((char)26);//sending
  delay(5000);//waitting for reply, important! the time is base on the condition of internet 
  mySerial.println();
 
  ShowSerialData();
 
  mySerial.println("AT+CIPCLOSE");//close the connection
  delay(100);
  ShowSerialData();
}
 
void ShowSerialData()
{
  while(mySerial.available()!=0)
    Serial.write(mySerial.read());
}

Don't forget delay time. because data transferring & responding from network don't at once. Scarcely you would change delay time.
 
What do you mean about pachube ?
 

What do you mean about pachube ?
Click to expand...
Pachube is a provider of essential remote services. You can upload and see your data on web.
If you want to more about this

go to **broken link removed**
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top