I think there must be many sources out there for delphi in the net already.

Visual studio is a relativly new kind of language, with very few websites helping with serial comms, thats why I post here :)

thx man it s very interesting for beginners !!
br

thanks man i've worked with t290i and AT Command it works well.

now i'll try to make the MCU recieve the msg that the mobile recieve automatically and switch on/off devices

hi, Dave.W
i got this error when I sent this AT Command AT+CPBR=1,250
that command is for phonebook extraction

System.InvalidOperationException was unhandled
Message="The port is closed."
Source="System"
StackTrace:
at System.IO.Ports.SerialPort.ReadExisting() at SerialPort_Test.Form1.SerialPort1_DataReceived(Obj ect sender, SerialDataReceivedEventArgs e) in C:\Documents and Settings\Administrator\My Documents\Downloads\SerialPort_Test\SerialPort_Tes t\SerialPort_Test\Form1.vb:line 74 at System.IO.Ports.SerialPort.CatchReceivedEvents(Obj ect src, SerialDataReceivedEventArgs e) at System.IO.Ports.SerialStream.EventLoopRunner.CallR eceiveEvents(Object state) at System.Threading._ThreadPoolWaitCallback.WaitCallb ack_Context(Object state) at System.Threading.ExecutionContext.runTryCode(Objec t userData) at System.Runtime.CompilerServices.RuntimeHelpers.Exe cuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(Exec utionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state) at System.Threading._ThreadPoolWaitCallback.PerformWa itCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack) at System.Threading._ThreadPoolWaitCallback.PerformWa itCallback(Object state)
InnerException:

it is really easier in C# .net , and specially , You can compile and MSL for later compile for linux.

tnx guys For this Nice topic

Dave.W can explain how can i send nck codes via usb to nokia bb5 phones, i try to use at comand but not all phones have "Phone to Network Lock" facility Enabled

thx man it s very interesting for beginners !!

Dim i As VariantType

Dim i As VariantType

Dave.W
 

I want to write an application using visualbasic2008 which will run on my PC and communicate to a mobile phone using AT commands. ( nokia 1202, 1203)
like reading phone imei, security code, restore factory state, unlock sp lock

Yes, read post 1 and 2 in this thread!

cool man. but where to find AT COMMANDS

Read post number 2, all is posted.

Dave.W
 

its grateful that u have provided me with such a beatiful and simple tutorial. i was in search of such tutorial for long a time.
I have managed to add a progressivebar and a timer. I am about to start prepairing gsm AT commands like read imei, firmware version, model , make and so forth. please guide me how to send all AT commands at once. and please can you give me AT commands for " read security code, write flash etc...etc..