at-command

First of all, I am trying to do all this disaster in c# (.net 4) so if you come up with some code to help me that would be appreciated but really anything would help at this point. I have a situation where I have a device that can only get GSM Cell information (incidentally via the AT+KCELL command) so I have a collection of values about cell towers (each has LAC, MCC, MNC, Cell ID, Signal Strength and the first Timing Advance). I think, therefore, I am in a good place to be able to come up with some sort of longitude and latitude coordinate (albeit inaccurate, but, well meh). This is where I

I am using an Arduino Uno with a sim900 gps/gprs module and I'm using at commands, how can I get the response of at command (i.e OK, ERROR) so that I can do something if response == "OK" or response == "ERROR" You can use following code to read response from SIM900 GSM Module just after issuing AT command. char response[200]; for(int i = 0 ; Serial.available() > 0 && i<200 ; i++) { response[i++] = Serial.read(); } After reading response you can use strstr() function to check whether it is ' OK ' or ' ERROR ', as given below: if(strstr(responce, "OK"){ /*Do your code to handle OK response*/ }

I'm using java to communicate with a gsm modem (Siemens) using AT commands. I set the encoding of modem to "UCS2". When sending messages as soon as I send the phone number I get ERROR from the device: AT+CSCS=UCS2 OK AT+CSMP=17,167,0,8 OK AT+CMGF=1 OK AT+CMGS="0919xxxxxxx" ERROR HELP ME, PLEEEEEEASE! :( I think you are encoding the <da> address argument to AT+CMGS incorrectly. You refer to 91 and 92 style, but are you actually referring to the '81'/'82' format as explained in the Coding of Alpha fields in the SIM for UCS2 blog post about encoding as specified in 3GPP TS 11.11 ? After you run

I am developing an application for GSM Modems (D-Link DWM-156) in C#.Net using AT commands. I have a problem sending Unicode messages (Such as messages written in Persian or Arabic). Here it is the core of my program: SerialPort GSMPort = new SerialPort(); GSMPort.PortName = "COM6"; GSMPort.BaudRate = 9600; GSMPort.Parity = Parity.None; GSMPort.DataBits = 8; GSMPort.StopBits = StopBits.One; GSMPort.Handshake = HandShake.RequestToSend; GSMPort.DtrEnable = true; GSMPort.RtsEnable = true; GSMPort.Open(); GSMPort.Write("AT\r"); Thread.Sleep(1000); GSMPort.Write("AT+CMGF=1\r"); Thread.Sleep(1000);

I want to Send AT Command to Android phone. I know SDK does not support this. but there are two solution : change the code of Kernel and release your new Android (it seems it is so hard!) LoopBack on USB .(i think Bluetooth is same) About second solution , when you connect your phone to PC with USB cable , you will see a GSM modem on Device Manager that help you to send AT Command to GSM Modem. If we find a solution to loop back on mobile phone , we can send AT commands to GSM Modem. Question is : HOW to loop back and what tty file on kernel will help us? first you have to root the phone then

I'm using minicom (serial port software for linux) for interacting with my GSM modem, actually now I'm trying to use one of my mobile-provider's services with AT-Command. here I say, I wanna see my balance: AT+CUSD=1,*555*87*1234# OK +CUSD: 1,"this service will deduct you 5cent from your balance, to continue please enter 1",15 so, here I sent "1", but nothing happened and session get closed. AT+CUSD=1,1 OK nothing happen, but session closed. With normal phone, after entering 1, I will get my current balance. Please help me. The format of the command is AT+CUSD=[<n>[,<str>[,<dcs>]]] , and the